tools/testing/selftests/bpf/test_verifier.c

/*
 * Testsuite for eBPF verifier
 *
 * Copyright (c) 2014 PLUMgrid, http://plumgrid.com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License as published by the Free Software Foundation.
 */

#include <stdio.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <stddef.h>
#include <stdbool.h>
#include <sched.h>

#include <sys/resource.h>

#include <linux/unistd.h>
#include <linux/filter.h>
#include <linux/bpf_perf_event.h>
#include <linux/bpf.h>

#include "../../../include/linux/filter.h"

#include "bpf_sys.h"

#ifndef ARRAY_SIZE
# define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
#endif

#define MAX_INSNS	512
#define MAX_FIXUPS	8

struct bpf_test {
	const char *descr;
	struct bpf_insn	insns[MAX_INSNS];
	int fixup_map1[MAX_FIXUPS];
	int fixup_map2[MAX_FIXUPS];
	int fixup_prog[MAX_FIXUPS];
	const char *errstr;
	const char *errstr_unpriv;
	enum {
		UNDEF,
		ACCEPT,
		REJECT
	} result, result_unpriv;
	enum bpf_prog_type prog_type;
};

/* Note we want this to be 64 bit aligned so that the end of our array is
 * actually the end of the structure.
 */
#define MAX_ENTRIES 11

struct test_val {
	unsigned int index;
	int foo[MAX_ENTRIES];
};

static struct bpf_test tests[] = {
	{
		"add+sub+mul",
		.insns = {
			BPF_MOV64_IMM(BPF_REG_1, 1),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 2),
			BPF_MOV64_IMM(BPF_REG_2, 3),
			BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_2),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -1),
			BPF_ALU64_IMM(BPF_MUL, BPF_REG_1, 3),
			BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
	},
	{
		"unreachable",
		.insns = {
			BPF_EXIT_INSN(),
			BPF_EXIT_INSN(),
		},
		.errstr = "unreachable",
		.result = REJECT,
	},
	{
		"unreachable2",
		.insns = {
			BPF_JMP_IMM(BPF_JA, 0, 0, 1),
			BPF_JMP_IMM(BPF_JA, 0, 0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr = "unreachable",
		.result = REJECT,
	},
	{
		"out of range jump",
		.insns = {
			BPF_JMP_IMM(BPF_JA, 0, 0, 1),
			BPF_EXIT_INSN(),
		},
		.errstr = "jump out of range",
		.result = REJECT,
	},
	{
		"out of range jump2",
		.insns = {
			BPF_JMP_IMM(BPF_JA, 0, 0, -2),
			BPF_EXIT_INSN(),
		},
		.errstr = "jump out of range",
		.result = REJECT,
	},
	{
		"test1 ld_imm64",
		.insns = {
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
			BPF_LD_IMM64(BPF_REG_0, 0),
			BPF_LD_IMM64(BPF_REG_0, 0),
			BPF_LD_IMM64(BPF_REG_0, 1),
			BPF_LD_IMM64(BPF_REG_0, 1),
			BPF_MOV64_IMM(BPF_REG_0, 2),
			BPF_EXIT_INSN(),
		},
		.errstr = "invalid BPF_LD_IMM insn",
		.errstr_unpriv = "R1 pointer comparison",
		.result = REJECT,
	},
	{
		"test2 ld_imm64",
		.insns = {
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
			BPF_LD_IMM64(BPF_REG_0, 0),
			BPF_LD_IMM64(BPF_REG_0, 0),
			BPF_LD_IMM64(BPF_REG_0, 1),
			BPF_LD_IMM64(BPF_REG_0, 1),
			BPF_EXIT_INSN(),
		},
		.errstr = "invalid BPF_LD_IMM insn",
		.errstr_unpriv = "R1 pointer comparison",
		.result = REJECT,
	},
	{
		"test3 ld_imm64",
		.insns = {
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
			BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0),
			BPF_LD_IMM64(BPF_REG_0, 0),
			BPF_LD_IMM64(BPF_REG_0, 0),
			BPF_LD_IMM64(BPF_REG_0, 1),
			BPF_LD_IMM64(BPF_REG_0, 1),
			BPF_EXIT_INSN(),
		},
		.errstr = "invalid bpf_ld_imm64 insn",
		.result = REJECT,
	},
	{
		"test4 ld_imm64",
		.insns = {
			BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr = "invalid bpf_ld_imm64 insn",
		.result = REJECT,
	},
	{
		"test5 ld_imm64",
		.insns = {
			BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0),
		},
		.errstr = "invalid bpf_ld_imm64 insn",
		.result = REJECT,
	},
	{
		"no bpf_exit",
		.insns = {
			BPF_ALU64_REG(BPF_MOV, BPF_REG_0, BPF_REG_2),
		},
		.errstr = "jump out of range",
		.result = REJECT,
	},
	{
		"loop (back-edge)",
		.insns = {
			BPF_JMP_IMM(BPF_JA, 0, 0, -1),
			BPF_EXIT_INSN(),
		},
		.errstr = "back-edge",
		.result = REJECT,
	},
	{
		"loop2 (back-edge)",
		.insns = {
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
			BPF_JMP_IMM(BPF_JA, 0, 0, -4),
			BPF_EXIT_INSN(),
		},
		.errstr = "back-edge",
		.result = REJECT,
	},
	{
		"conditional loop",
		.insns = {
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, -3),
			BPF_EXIT_INSN(),
		},
		.errstr = "back-edge",
		.result = REJECT,
	},
	{
		"read uninitialized register",
		.insns = {
			BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
			BPF_EXIT_INSN(),
		},
		.errstr = "R2 !read_ok",
		.result = REJECT,
	},
	{
		"read invalid register",
		.insns = {
			BPF_MOV64_REG(BPF_REG_0, -1),
			BPF_EXIT_INSN(),
		},
		.errstr = "R15 is invalid",
		.result = REJECT,
	},
	{
		"program doesn't init R0 before exit",
		.insns = {
			BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_1),
			BPF_EXIT_INSN(),
		},
		.errstr = "R0 !read_ok",
		.result = REJECT,
	},
	{
		"program doesn't init R0 before exit in all branches",
		.insns = {
			BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
			BPF_MOV64_IMM(BPF_REG_0, 1),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 2),
			BPF_EXIT_INSN(),
		},
		.errstr = "R0 !read_ok",
		.errstr_unpriv = "R1 pointer comparison",
		.result = REJECT,
	},
	{
		"stack out of bounds",
		.insns = {
			BPF_ST_MEM(BPF_DW, BPF_REG_10, 8, 0),
			BPF_EXIT_INSN(),
		},
		.errstr = "invalid stack",
		.result = REJECT,
	},
	{
		"invalid call insn1",
		.insns = {
			BPF_RAW_INSN(BPF_JMP | BPF_CALL | BPF_X, 0, 0, 0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr = "BPF_CALL uses reserved",
		.result = REJECT,
	},
	{
		"invalid call insn2",
		.insns = {
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 1, 0),
			BPF_EXIT_INSN(),
		},
		.errstr = "BPF_CALL uses reserved",
		.result = REJECT,
	},
	{
		"invalid function call",
		.insns = {
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1234567),
			BPF_EXIT_INSN(),
		},
		.errstr = "invalid func unknown#1234567",
		.result = REJECT,
	},
	{
		"uninitialized stack1",
		.insns = {
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_EXIT_INSN(),
		},
		.fixup_map1 = { 2 },
		.errstr = "invalid indirect read from stack",
		.result = REJECT,
	},
	{
		"uninitialized stack2",
		.insns = {
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -8),
			BPF_EXIT_INSN(),
		},
		.errstr = "invalid read from stack",
		.result = REJECT,
	},
	{
		"invalid argument register",
		.insns = {
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_get_cgroup_classid),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_get_cgroup_classid),
			BPF_EXIT_INSN(),
		},
		.errstr = "R1 !read_ok",
		.result = REJECT,
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"non-invalid argument register",
		.insns = {
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_get_cgroup_classid),
			BPF_ALU64_REG(BPF_MOV, BPF_REG_1, BPF_REG_6),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_get_cgroup_classid),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"check valid spill/fill",
		.insns = {
			/* spill R1(ctx) into stack */
			BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
			/* fill it back into R2 */
			BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -8),
			/* should be able to access R0 = *(R2 + 8) */
			/* BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 8), */
			BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
			BPF_EXIT_INSN(),
		},
		.errstr_unpriv = "R0 leaks addr",
		.result = ACCEPT,
		.result_unpriv = REJECT,
	},
	{
		"check valid spill/fill, skb mark",
		.insns = {
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1),
			BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, -8),
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
				    offsetof(struct __sk_buff, mark)),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.result_unpriv = ACCEPT,
	},
	{
		"check corrupted spill/fill",
		.insns = {
			/* spill R1(ctx) into stack */
			BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
			/* mess up with R1 pointer on stack */
			BPF_ST_MEM(BPF_B, BPF_REG_10, -7, 0x23),
			/* fill back into R0 should fail */
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
			BPF_EXIT_INSN(),
		},
		.errstr_unpriv = "attempt to corrupt spilled",
		.errstr = "corrupted spill",
		.result = REJECT,
	},
	{
		"invalid src register in STX",
		.insns = {
			BPF_STX_MEM(BPF_B, BPF_REG_10, -1, -1),
			BPF_EXIT_INSN(),
		},
		.errstr = "R15 is invalid",
		.result = REJECT,
	},
	{
		"invalid dst register in STX",
		.insns = {
			BPF_STX_MEM(BPF_B, 14, BPF_REG_10, -1),
			BPF_EXIT_INSN(),
		},
		.errstr = "R14 is invalid",
		.result = REJECT,
	},
	{
		"invalid dst register in ST",
		.insns = {
			BPF_ST_MEM(BPF_B, 14, -1, -1),
			BPF_EXIT_INSN(),
		},
		.errstr = "R14 is invalid",
		.result = REJECT,
	},
	{
		"invalid src register in LDX",
		.insns = {
			BPF_LDX_MEM(BPF_B, BPF_REG_0, 12, 0),
			BPF_EXIT_INSN(),
		},
		.errstr = "R12 is invalid",
		.result = REJECT,
	},
	{
		"invalid dst register in LDX",
		.insns = {
			BPF_LDX_MEM(BPF_B, 11, BPF_REG_1, 0),
			BPF_EXIT_INSN(),
		},
		.errstr = "R11 is invalid",
		.result = REJECT,
	},
	{
		"junk insn",
		.insns = {
			BPF_RAW_INSN(0, 0, 0, 0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr = "invalid BPF_LD_IMM",
		.result = REJECT,
	},
	{
		"junk insn2",
		.insns = {
			BPF_RAW_INSN(1, 0, 0, 0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr = "BPF_LDX uses reserved fields",
		.result = REJECT,
	},
	{
		"junk insn3",
		.insns = {
			BPF_RAW_INSN(-1, 0, 0, 0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr = "invalid BPF_ALU opcode f0",
		.result = REJECT,
	},
	{
		"junk insn4",
		.insns = {
			BPF_RAW_INSN(-1, -1, -1, -1, -1),
			BPF_EXIT_INSN(),
		},
		.errstr = "invalid BPF_ALU opcode f0",
		.result = REJECT,
	},
	{
		"junk insn5",
		.insns = {
			BPF_RAW_INSN(0x7f, -1, -1, -1, -1),
			BPF_EXIT_INSN(),
		},
		.errstr = "BPF_ALU uses reserved fields",
		.result = REJECT,
	},
	{
		"misaligned read from stack",
		.insns = {
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -4),
			BPF_EXIT_INSN(),
		},
		.errstr = "misaligned access",
		.result = REJECT,
	},
	{
		"invalid map_fd for function call",
		.insns = {
			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
			BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_delete_elem),
			BPF_EXIT_INSN(),
		},
		.errstr = "fd 0 is not pointing to valid bpf_map",
		.result = REJECT,
	},
	{
		"don't check return value before access",
		.insns = {
			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
			BPF_EXIT_INSN(),
		},
		.fixup_map1 = { 3 },
		.errstr = "R0 invalid mem access 'map_value_or_null'",
		.result = REJECT,
	},
	{
		"access memory with incorrect alignment",
		.insns = {
			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
			BPF_ST_MEM(BPF_DW, BPF_REG_0, 4, 0),
			BPF_EXIT_INSN(),
		},
		.fixup_map1 = { 3 },
		.errstr = "misaligned access",
		.result = REJECT,
	},
	{
		"sometimes access memory with incorrect alignment",
		.insns = {
			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
			BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
			BPF_EXIT_INSN(),
			BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 1),
			BPF_EXIT_INSN(),
		},
		.fixup_map1 = { 3 },
		.errstr = "R0 invalid mem access",
		.errstr_unpriv = "R0 leaks addr",
		.result = REJECT,
	},
	{
		"jump test 1",
		.insns = {
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -8),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
			BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 1),
			BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 1),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 1),
			BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 2),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 1),
			BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 3),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 1),
			BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 4),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1),
			BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 5),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr_unpriv = "R1 pointer comparison",
		.result_unpriv = REJECT,
		.result = ACCEPT,
	},
	{
		"jump test 2",
		.insns = {
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 2),
			BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0),
			BPF_JMP_IMM(BPF_JA, 0, 0, 14),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 2),
			BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0),
			BPF_JMP_IMM(BPF_JA, 0, 0, 11),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 2),
			BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0),
			BPF_JMP_IMM(BPF_JA, 0, 0, 8),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 2),
			BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0),
			BPF_JMP_IMM(BPF_JA, 0, 0, 5),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 2),
			BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0),
			BPF_JMP_IMM(BPF_JA, 0, 0, 2),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1),
			BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr_unpriv = "R1 pointer comparison",
		.result_unpriv = REJECT,
		.result = ACCEPT,
	},
	{
		"jump test 3",
		.insns = {
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3),
			BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_JMP_IMM(BPF_JA, 0, 0, 19),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 3),
			BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
			BPF_JMP_IMM(BPF_JA, 0, 0, 15),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 3),
			BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -32),
			BPF_JMP_IMM(BPF_JA, 0, 0, 11),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 3),
			BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -40),
			BPF_JMP_IMM(BPF_JA, 0, 0, 7),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 3),
			BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -48),
			BPF_JMP_IMM(BPF_JA, 0, 0, 3),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 0),
			BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -56),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_delete_elem),
			BPF_EXIT_INSN(),
		},
		.fixup_map1 = { 24 },
		.errstr_unpriv = "R1 pointer comparison",
		.result_unpriv = REJECT,
		.result = ACCEPT,
	},
	{
		"jump test 4",
		.insns = {
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr_unpriv = "R1 pointer comparison",
		.result_unpriv = REJECT,
		.result = ACCEPT,
	},
	{
		"jump test 5",
		.insns = {
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_2),
			BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
			BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
			BPF_JMP_IMM(BPF_JA, 0, 0, 2),
			BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
			BPF_JMP_IMM(BPF_JA, 0, 0, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
			BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
			BPF_JMP_IMM(BPF_JA, 0, 0, 2),
			BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
			BPF_JMP_IMM(BPF_JA, 0, 0, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
			BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
			BPF_JMP_IMM(BPF_JA, 0, 0, 2),
			BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
			BPF_JMP_IMM(BPF_JA, 0, 0, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
			BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
			BPF_JMP_IMM(BPF_JA, 0, 0, 2),
			BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
			BPF_JMP_IMM(BPF_JA, 0, 0, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
			BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
			BPF_JMP_IMM(BPF_JA, 0, 0, 2),
			BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
			BPF_JMP_IMM(BPF_JA, 0, 0, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr_unpriv = "R1 pointer comparison",
		.result_unpriv = REJECT,
		.result = ACCEPT,
	},
	{
		"access skb fields ok",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
				    offsetof(struct __sk_buff, len)),
			BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
				    offsetof(struct __sk_buff, mark)),
			BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
				    offsetof(struct __sk_buff, pkt_type)),
			BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
				    offsetof(struct __sk_buff, queue_mapping)),
			BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
				    offsetof(struct __sk_buff, protocol)),
			BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
				    offsetof(struct __sk_buff, vlan_present)),
			BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
				    offsetof(struct __sk_buff, vlan_tci)),
			BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
	},
	{
		"access skb fields bad1",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -4),
			BPF_EXIT_INSN(),
		},
		.errstr = "invalid bpf_context access",
		.result = REJECT,
	},
	{
		"access skb fields bad2",
		.insns = {
			BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 9),
			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
			BPF_EXIT_INSN(),
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
				    offsetof(struct __sk_buff, pkt_type)),
			BPF_EXIT_INSN(),
		},
		.fixup_map1 = { 4 },
		.errstr = "different pointers",
		.errstr_unpriv = "R1 pointer comparison",
		.result = REJECT,
	},
	{
		"access skb fields bad3",
		.insns = {
			BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
				    offsetof(struct __sk_buff, pkt_type)),
			BPF_EXIT_INSN(),
			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
			BPF_EXIT_INSN(),
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
			BPF_JMP_IMM(BPF_JA, 0, 0, -12),
		},
		.fixup_map1 = { 6 },
		.errstr = "different pointers",
		.errstr_unpriv = "R1 pointer comparison",
		.result = REJECT,
	},
	{
		"access skb fields bad4",
		.insns = {
			BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 3),
			BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
				    offsetof(struct __sk_buff, len)),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
			BPF_EXIT_INSN(),
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
			BPF_JMP_IMM(BPF_JA, 0, 0, -13),
		},
		.fixup_map1 = { 7 },
		.errstr = "different pointers",
		.errstr_unpriv = "R1 pointer comparison",
		.result = REJECT,
	},
	{
		"check skb->mark is not writeable by sockets",
		.insns = {
			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
				    offsetof(struct __sk_buff, mark)),
			BPF_EXIT_INSN(),
		},
		.errstr = "invalid bpf_context access",
		.errstr_unpriv = "R1 leaks addr",
		.result = REJECT,
	},
	{
		"check skb->tc_index is not writeable by sockets",
		.insns = {
			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
				    offsetof(struct __sk_buff, tc_index)),
			BPF_EXIT_INSN(),
		},
		.errstr = "invalid bpf_context access",
		.errstr_unpriv = "R1 leaks addr",
		.result = REJECT,
	},
	{
		"check non-u32 access to cb",
		.insns = {
			BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_1,
				    offsetof(struct __sk_buff, cb[0])),
			BPF_EXIT_INSN(),
		},
		.errstr = "invalid bpf_context access",
		.errstr_unpriv = "R1 leaks addr",
		.result = REJECT,
	},
	{
		"check out of range skb->cb access",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
				    offsetof(struct __sk_buff, cb[0]) + 256),
			BPF_EXIT_INSN(),
		},
		.errstr = "invalid bpf_context access",
		.errstr_unpriv = "",
		.result = REJECT,
		.prog_type = BPF_PROG_TYPE_SCHED_ACT,
	},
	{
		"write skb fields from socket prog",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
				    offsetof(struct __sk_buff, cb[4])),
			BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
				    offsetof(struct __sk_buff, mark)),
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
				    offsetof(struct __sk_buff, tc_index)),
			BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
				    offsetof(struct __sk_buff, cb[0])),
			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
				    offsetof(struct __sk_buff, cb[2])),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.errstr_unpriv = "R1 leaks addr",
		.result_unpriv = REJECT,
	},
	{
		"write skb fields from tc_cls_act prog",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
				    offsetof(struct __sk_buff, cb[0])),
			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
				    offsetof(struct __sk_buff, mark)),
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
				    offsetof(struct __sk_buff, tc_index)),
			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
				    offsetof(struct __sk_buff, tc_index)),
			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
				    offsetof(struct __sk_buff, cb[3])),
			BPF_EXIT_INSN(),
		},
		.errstr_unpriv = "",
		.result_unpriv = REJECT,
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"PTR_TO_STACK store/load",
		.insns = {
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10),
			BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c),
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
	},
	{
		"PTR_TO_STACK store/load - bad alignment on off",
		.insns = {
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
			BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c),
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "misaligned access off -6 size 8",
	},
	{
		"PTR_TO_STACK store/load - bad alignment on reg",
		.insns = {
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10),
			BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c),
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "misaligned access off -2 size 8",
	},
	{
		"PTR_TO_STACK store/load - out of bounds low",
		.insns = {
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -80000),
			BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c),
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "invalid stack off=-79992 size=8",
	},
	{
		"PTR_TO_STACK store/load - out of bounds high",
		.insns = {
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
			BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c),
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "invalid stack off=0 size=8",
	},
	{
		"unpriv: return pointer",
		.insns = {
			BPF_MOV64_REG(BPF_REG_0, BPF_REG_10),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.result_unpriv = REJECT,
		.errstr_unpriv = "R0 leaks addr",
	},
	{
		"unpriv: add const to pointer",
		.insns = {
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.result_unpriv = REJECT,
		.errstr_unpriv = "R1 pointer arithmetic",
	},
	{
		"unpriv: add pointer to pointer",
		.insns = {
			BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_10),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.result_unpriv = REJECT,
		.errstr_unpriv = "R1 pointer arithmetic",
	},
	{
		"unpriv: neg pointer",
		.insns = {
			BPF_ALU64_IMM(BPF_NEG, BPF_REG_1, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.result_unpriv = REJECT,
		.errstr_unpriv = "R1 pointer arithmetic",
	},
	{
		"unpriv: cmp pointer with const",
		.insns = {
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.result_unpriv = REJECT,
		.errstr_unpriv = "R1 pointer comparison",
	},
	{
		"unpriv: cmp pointer with pointer",
		.insns = {
			BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.result_unpriv = REJECT,
		.errstr_unpriv = "R10 pointer comparison",
	},
	{
		"unpriv: check that printk is disallowed",
		.insns = {
			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
			BPF_MOV64_IMM(BPF_REG_2, 8),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_1),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_trace_printk),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr_unpriv = "unknown func bpf_trace_printk#6",
		.result_unpriv = REJECT,
		.result = ACCEPT,
	},
	{
		"unpriv: pass pointer to helper function",
		.insns = {
			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_2),
			BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_update_elem),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.fixup_map1 = { 3 },
		.errstr_unpriv = "R4 leaks addr",
		.result_unpriv = REJECT,
		.result = ACCEPT,
	},
	{
		"unpriv: indirectly pass pointer on stack to helper function",
		.insns = {
			BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.fixup_map1 = { 3 },
		.errstr = "invalid indirect read from stack off -8+0 size 8",
		.result = REJECT,
	},
	{
		"unpriv: mangle pointer on stack 1",
		.insns = {
			BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8),
			BPF_ST_MEM(BPF_W, BPF_REG_10, -8, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr_unpriv = "attempt to corrupt spilled",
		.result_unpriv = REJECT,
		.result = ACCEPT,
	},
	{
		"unpriv: mangle pointer on stack 2",
		.insns = {
			BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8),
			BPF_ST_MEM(BPF_B, BPF_REG_10, -1, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr_unpriv = "attempt to corrupt spilled",
		.result_unpriv = REJECT,
		.result = ACCEPT,
	},
	{
		"unpriv: read pointer from stack in small chunks",
		.insns = {
			BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8),
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -8),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr = "invalid size",
		.result = REJECT,
	},
	{
		"unpriv: write pointer into ctx",
		.insns = {
			BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr_unpriv = "R1 leaks addr",
		.result_unpriv = REJECT,
		.errstr = "invalid bpf_context access",
		.result = REJECT,
	},
	{
		"unpriv: spill/fill of ctx",
		.insns = {
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
			BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
			BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
	},
	{
		"unpriv: spill/fill of ctx 2",
		.insns = {
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
			BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
			BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_get_hash_recalc),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"unpriv: spill/fill of ctx 3",
		.insns = {
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
			BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
			BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_10, 0),
			BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_get_hash_recalc),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "R1 type=fp expected=ctx",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"unpriv: spill/fill of ctx 4",
		.insns = {
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
			BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
			BPF_MOV64_IMM(BPF_REG_0, 1),
			BPF_RAW_INSN(BPF_STX | BPF_XADD | BPF_DW, BPF_REG_10,
				     BPF_REG_0, -8, 0),
			BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_get_hash_recalc),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "R1 type=inv expected=ctx",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"unpriv: spill/fill of different pointers stx",
		.insns = {
			BPF_MOV64_IMM(BPF_REG_3, 42),
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
			BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_2, 0),
			BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1),
			BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
			BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0),
			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_3,
				    offsetof(struct __sk_buff, mark)),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "same insn cannot be used with different pointers",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"unpriv: spill/fill of different pointers ldx",
		.insns = {
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2,
				      -(__s32)offsetof(struct bpf_perf_event_data,
						       sample_period) - 8),
			BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_2, 0),
			BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1),
			BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
			BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0),
			BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1,
				    offsetof(struct bpf_perf_event_data,
					     sample_period)),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "same insn cannot be used with different pointers",
		.prog_type = BPF_PROG_TYPE_PERF_EVENT,
	},
	{
		"unpriv: write pointer into map elem value",
		.insns = {
			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
			BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.fixup_map1 = { 3 },
		.errstr_unpriv = "R0 leaks addr",
		.result_unpriv = REJECT,
		.result = ACCEPT,
	},
	{
		"unpriv: partial copy of pointer",
		.insns = {
			BPF_MOV32_REG(BPF_REG_1, BPF_REG_10),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr_unpriv = "R10 partial copy",
		.result_unpriv = REJECT,
		.result = ACCEPT,
	},
	{
		"unpriv: pass pointer to tail_call",
		.insns = {
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_1),
			BPF_LD_MAP_FD(BPF_REG_2, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_tail_call),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.fixup_prog = { 1 },
		.errstr_unpriv = "R3 leaks addr into helper",
		.result_unpriv = REJECT,
		.result = ACCEPT,
	},
	{
		"unpriv: cmp map pointer with zero",
		.insns = {
			BPF_MOV64_IMM(BPF_REG_1, 0),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.fixup_map1 = { 1 },
		.errstr_unpriv = "R1 pointer comparison",
		.result_unpriv = REJECT,
		.result = ACCEPT,
	},
	{
		"unpriv: write into frame pointer",
		.insns = {
			BPF_MOV64_REG(BPF_REG_10, BPF_REG_1),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr = "frame pointer is read only",
		.result = REJECT,
	},
	{
		"unpriv: spill/fill frame pointer",
		.insns = {
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
			BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_10, 0),
			BPF_LDX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr = "frame pointer is read only",
		.result = REJECT,
	},
	{
		"unpriv: cmp of frame pointer",
		.insns = {
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_10, 0, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr_unpriv = "R10 pointer comparison",
		.result_unpriv = REJECT,
		.result = ACCEPT,
	},
	{
		"unpriv: cmp of stack pointer",
		.insns = {
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_2, 0, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr_unpriv = "R2 pointer comparison",
		.result_unpriv = REJECT,
		.result = ACCEPT,
	},
	{
		"unpriv: obfuscate stack pointer",
		.insns = {
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr_unpriv = "R2 pointer arithmetic",
		.result_unpriv = REJECT,
		.result = ACCEPT,
	},
	{
		"raw_stack: no skb_load_bytes",
		.insns = {
			BPF_MOV64_IMM(BPF_REG_2, 4),
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
			BPF_MOV64_IMM(BPF_REG_4, 8),
			/* Call to skb_load_bytes() omitted. */
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "invalid read from stack off -8+0 size 8",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"raw_stack: skb_load_bytes, negative len",
		.insns = {
			BPF_MOV64_IMM(BPF_REG_2, 4),
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
			BPF_MOV64_IMM(BPF_REG_4, -8),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_skb_load_bytes),
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "invalid stack type R3",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"raw_stack: skb_load_bytes, negative len 2",
		.insns = {
			BPF_MOV64_IMM(BPF_REG_2, 4),
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
			BPF_MOV64_IMM(BPF_REG_4, ~0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_skb_load_bytes),
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "invalid stack type R3",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"raw_stack: skb_load_bytes, zero len",
		.insns = {
			BPF_MOV64_IMM(BPF_REG_2, 4),
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
			BPF_MOV64_IMM(BPF_REG_4, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_skb_load_bytes),
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "invalid stack type R3",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"raw_stack: skb_load_bytes, no init",
		.insns = {
			BPF_MOV64_IMM(BPF_REG_2, 4),
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
			BPF_MOV64_IMM(BPF_REG_4, 8),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_skb_load_bytes),
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"raw_stack: skb_load_bytes, init",
		.insns = {
			BPF_MOV64_IMM(BPF_REG_2, 4),
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
			BPF_ST_MEM(BPF_DW, BPF_REG_6, 0, 0xcafe),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
			BPF_MOV64_IMM(BPF_REG_4, 8),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_skb_load_bytes),
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"raw_stack: skb_load_bytes, spilled regs around bounds",
		.insns = {
			BPF_MOV64_IMM(BPF_REG_2, 4),
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16),
			BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8),
			BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1,  8),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
			BPF_MOV64_IMM(BPF_REG_4, 8),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_skb_load_bytes),
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8),
			BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6,  8),
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
				    offsetof(struct __sk_buff, mark)),
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2,
				    offsetof(struct __sk_buff, priority)),
			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"raw_stack: skb_load_bytes, spilled regs corruption",
		.insns = {
			BPF_MOV64_IMM(BPF_REG_2, 4),
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
			BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
			BPF_MOV64_IMM(BPF_REG_4, 8),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_skb_load_bytes),
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
				    offsetof(struct __sk_buff, mark)),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "R0 invalid mem access 'inv'",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"raw_stack: skb_load_bytes, spilled regs corruption 2",
		.insns = {
			BPF_MOV64_IMM(BPF_REG_2, 4),
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16),
			BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8),
			BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1,  0),
			BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1,  8),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
			BPF_MOV64_IMM(BPF_REG_4, 8),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_skb_load_bytes),
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8),
			BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6,  8),
			BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6,  0),
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
				    offsetof(struct __sk_buff, mark)),
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2,
				    offsetof(struct __sk_buff, priority)),
			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_3,
				    offsetof(struct __sk_buff, pkt_type)),
			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "R3 invalid mem access 'inv'",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"raw_stack: skb_load_bytes, spilled regs + data",
		.insns = {
			BPF_MOV64_IMM(BPF_REG_2, 4),
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16),
			BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8),
			BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1,  0),
			BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1,  8),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
			BPF_MOV64_IMM(BPF_REG_4, 8),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_skb_load_bytes),
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8),
			BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6,  8),
			BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6,  0),
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
				    offsetof(struct __sk_buff, mark)),
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2,
				    offsetof(struct __sk_buff, priority)),
			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"raw_stack: skb_load_bytes, invalid access 1",
		.insns = {
			BPF_MOV64_IMM(BPF_REG_2, 4),
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -513),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
			BPF_MOV64_IMM(BPF_REG_4, 8),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_skb_load_bytes),
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "invalid stack type R3 off=-513 access_size=8",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"raw_stack: skb_load_bytes, invalid access 2",
		.insns = {
			BPF_MOV64_IMM(BPF_REG_2, 4),
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
			BPF_MOV64_IMM(BPF_REG_4, 8),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_skb_load_bytes),
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "invalid stack type R3 off=-1 access_size=8",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"raw_stack: skb_load_bytes, invalid access 3",
		.insns = {
			BPF_MOV64_IMM(BPF_REG_2, 4),
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 0xffffffff),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
			BPF_MOV64_IMM(BPF_REG_4, 0xffffffff),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_skb_load_bytes),
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "invalid stack type R3 off=-1 access_size=-1",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"raw_stack: skb_load_bytes, invalid access 4",
		.insns = {
			BPF_MOV64_IMM(BPF_REG_2, 4),
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
			BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_skb_load_bytes),
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "invalid stack type R3 off=-1 access_size=2147483647",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"raw_stack: skb_load_bytes, invalid access 5",
		.insns = {
			BPF_MOV64_IMM(BPF_REG_2, 4),
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
			BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_skb_load_bytes),
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "invalid stack type R3 off=-512 access_size=2147483647",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"raw_stack: skb_load_bytes, invalid access 6",
		.insns = {
			BPF_MOV64_IMM(BPF_REG_2, 4),
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
			BPF_MOV64_IMM(BPF_REG_4, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_skb_load_bytes),
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "invalid stack type R3 off=-512 access_size=0",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"raw_stack: skb_load_bytes, large access",
		.insns = {
			BPF_MOV64_IMM(BPF_REG_2, 4),
			BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
			BPF_MOV64_IMM(BPF_REG_4, 512),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_skb_load_bytes),
			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"direct packet access: test1",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
			BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
			BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"direct packet access: test2",
		.insns = {
			BPF_MOV64_IMM(BPF_REG_0, 1),
			BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_MOV64_REG(BPF_REG_5, BPF_REG_3),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14),
			BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_4, 15),
			BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_3, 7),
			BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_3, 12),
			BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 14),
			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_4),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_1),
			BPF_ALU64_IMM(BPF_LSH, BPF_REG_2, 48),
			BPF_ALU64_IMM(BPF_RSH, BPF_REG_2, 48),
			BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_2),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_3),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8),
			BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1),
			BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_3, 4),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"direct packet access: test3",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr = "invalid bpf_context access off=76",
		.result = REJECT,
		.prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
	},
	{
		"direct packet access: test4 (write)",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
			BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
			BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"direct packet access: test5 (pkt_end >= reg, good access)",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
			BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 2),
			BPF_MOV64_IMM(BPF_REG_0, 1),
			BPF_EXIT_INSN(),
			BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"direct packet access: test6 (pkt_end >= reg, bad access)",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
			BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 3),
			BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
			BPF_MOV64_IMM(BPF_REG_0, 1),
			BPF_EXIT_INSN(),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr = "invalid access to packet",
		.result = REJECT,
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"direct packet access: test7 (pkt_end >= reg, both accesses)",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
			BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 3),
			BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
			BPF_MOV64_IMM(BPF_REG_0, 1),
			BPF_EXIT_INSN(),
			BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr = "invalid access to packet",
		.result = REJECT,
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"direct packet access: test8 (double test, variant 1)",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
			BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 4),
			BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
			BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
			BPF_MOV64_IMM(BPF_REG_0, 1),
			BPF_EXIT_INSN(),
			BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"direct packet access: test9 (double test, variant 2)",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
			BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 2),
			BPF_MOV64_IMM(BPF_REG_0, 1),
			BPF_EXIT_INSN(),
			BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
			BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
			BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"direct packet access: test10 (write invalid)",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
			BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
			BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr = "invalid access to packet",
		.result = REJECT,
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"helper access to packet: test1, valid packet_ptr range",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
				    offsetof(struct xdp_md, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
				    offsetof(struct xdp_md, data_end)),
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
			BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_2),
			BPF_MOV64_IMM(BPF_REG_4, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_update_elem),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.fixup_map1 = { 5 },
		.result_unpriv = ACCEPT,
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_XDP,
	},
	{
		"helper access to packet: test2, unchecked packet_ptr",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
				    offsetof(struct xdp_md, data)),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.fixup_map1 = { 1 },
		.result = REJECT,
		.errstr = "invalid access to packet",
		.prog_type = BPF_PROG_TYPE_XDP,
	},
	{
		"helper access to packet: test3, variable add",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
					offsetof(struct xdp_md, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
					offsetof(struct xdp_md, data_end)),
			BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8),
			BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10),
			BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0),
			BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
			BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5),
			BPF_MOV64_REG(BPF_REG_5, BPF_REG_4),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8),
			BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_4),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.fixup_map1 = { 11 },
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_XDP,
	},
	{
		"helper access to packet: test4, packet_ptr with bad range",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
				    offsetof(struct xdp_md, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
				    offsetof(struct xdp_md, data_end)),
			BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
			BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.fixup_map1 = { 7 },
		.result = REJECT,
		.errstr = "invalid access to packet",
		.prog_type = BPF_PROG_TYPE_XDP,
	},
	{
		"helper access to packet: test5, packet_ptr with too short range",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
				    offsetof(struct xdp_md, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
				    offsetof(struct xdp_md, data_end)),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
			BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7),
			BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.fixup_map1 = { 6 },
		.result = REJECT,
		.errstr = "invalid access to packet",
		.prog_type = BPF_PROG_TYPE_XDP,
	},
	{
		"helper access to packet: test6, cls valid packet_ptr range",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
			BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_2),
			BPF_MOV64_IMM(BPF_REG_4, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_update_elem),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.fixup_map1 = { 5 },
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"helper access to packet: test7, cls unchecked packet_ptr",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.fixup_map1 = { 1 },
		.result = REJECT,
		.errstr = "invalid access to packet",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"helper access to packet: test8, cls variable add",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
					offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
					offsetof(struct __sk_buff, data_end)),
			BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8),
			BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10),
			BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0),
			BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
			BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5),
			BPF_MOV64_REG(BPF_REG_5, BPF_REG_4),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8),
			BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_4),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.fixup_map1 = { 11 },
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"helper access to packet: test9, cls packet_ptr with bad range",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
			BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.fixup_map1 = { 7 },
		.result = REJECT,
		.errstr = "invalid access to packet",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"helper access to packet: test10, cls packet_ptr with too short range",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
			BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7),
			BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.fixup_map1 = { 6 },
		.result = REJECT,
		.errstr = "invalid access to packet",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"helper access to packet: test11, cls unsuitable helper 1",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 7),
			BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_7, 4),
			BPF_MOV64_IMM(BPF_REG_2, 0),
			BPF_MOV64_IMM(BPF_REG_4, 42),
			BPF_MOV64_IMM(BPF_REG_5, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_skb_store_bytes),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "helper access to the packet",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"helper access to packet: test12, cls unsuitable helper 2",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 8),
			BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_7, 3),
			BPF_MOV64_IMM(BPF_REG_2, 0),
			BPF_MOV64_IMM(BPF_REG_4, 4),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_skb_load_bytes),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "helper access to the packet",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"helper access to packet: test13, cls helper ok",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
			BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
			BPF_MOV64_IMM(BPF_REG_2, 4),
			BPF_MOV64_IMM(BPF_REG_3, 0),
			BPF_MOV64_IMM(BPF_REG_4, 0),
			BPF_MOV64_IMM(BPF_REG_5, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_csum_diff),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"helper access to packet: test14, cls helper fail sub",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
			BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
			BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 4),
			BPF_MOV64_IMM(BPF_REG_2, 4),
			BPF_MOV64_IMM(BPF_REG_3, 0),
			BPF_MOV64_IMM(BPF_REG_4, 0),
			BPF_MOV64_IMM(BPF_REG_5, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_csum_diff),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "type=inv expected=fp",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"helper access to packet: test15, cls helper fail range 1",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
			BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
			BPF_MOV64_IMM(BPF_REG_2, 8),
			BPF_MOV64_IMM(BPF_REG_3, 0),
			BPF_MOV64_IMM(BPF_REG_4, 0),
			BPF_MOV64_IMM(BPF_REG_5, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_csum_diff),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "invalid access to packet",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"helper access to packet: test16, cls helper fail range 2",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
			BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
			BPF_MOV64_IMM(BPF_REG_2, -9),
			BPF_MOV64_IMM(BPF_REG_3, 0),
			BPF_MOV64_IMM(BPF_REG_4, 0),
			BPF_MOV64_IMM(BPF_REG_5, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_csum_diff),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "invalid access to packet",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"helper access to packet: test17, cls helper fail range 3",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
			BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
			BPF_MOV64_IMM(BPF_REG_2, ~0),
			BPF_MOV64_IMM(BPF_REG_3, 0),
			BPF_MOV64_IMM(BPF_REG_4, 0),
			BPF_MOV64_IMM(BPF_REG_5, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_csum_diff),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "invalid access to packet",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"helper access to packet: test18, cls helper fail range zero",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
			BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
			BPF_MOV64_IMM(BPF_REG_2, 0),
			BPF_MOV64_IMM(BPF_REG_3, 0),
			BPF_MOV64_IMM(BPF_REG_4, 0),
			BPF_MOV64_IMM(BPF_REG_5, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_csum_diff),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "invalid access to packet",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"helper access to packet: test19, pkt end as input",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
			BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
			BPF_MOV64_IMM(BPF_REG_2, 4),
			BPF_MOV64_IMM(BPF_REG_3, 0),
			BPF_MOV64_IMM(BPF_REG_4, 0),
			BPF_MOV64_IMM(BPF_REG_5, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_csum_diff),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "R1 type=pkt_end expected=fp",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"helper access to packet: test20, wrong reg",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
			BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
			BPF_MOV64_IMM(BPF_REG_2, 4),
			BPF_MOV64_IMM(BPF_REG_3, 0),
			BPF_MOV64_IMM(BPF_REG_4, 0),
			BPF_MOV64_IMM(BPF_REG_5, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_csum_diff),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "invalid access to packet",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	},
	{
		"valid map access into an array with a constant",
		.insns = {
			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
			BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
				   offsetof(struct test_val, foo)),
			BPF_EXIT_INSN(),
		},
		.fixup_map2 = { 3 },
		.errstr_unpriv = "R0 leaks addr",
		.result_unpriv = REJECT,
		.result = ACCEPT,
	},
	{
		"valid map access into an array with a register",
		.insns = {
			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
			BPF_MOV64_IMM(BPF_REG_1, 4),
			BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
			BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
				   offsetof(struct test_val, foo)),
			BPF_EXIT_INSN(),
		},
		.fixup_map2 = { 3 },
		.errstr_unpriv = "R0 pointer arithmetic prohibited",
		.result_unpriv = REJECT,
		.result = ACCEPT,
	},
	{
		"valid map access into an array with a variable",
		.insns = {
			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
			BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
			BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES, 3),
			BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
			BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
				   offsetof(struct test_val, foo)),
			BPF_EXIT_INSN(),
		},
		.fixup_map2 = { 3 },
		.errstr_unpriv = "R0 pointer arithmetic prohibited",
		.result_unpriv = REJECT,
		.result = ACCEPT,
	},
	{
		"valid map access into an array with a signed variable",
		.insns = {
			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
			BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
			BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 0xffffffff, 1),
			BPF_MOV32_IMM(BPF_REG_1, 0),
			BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES),
			BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1),
			BPF_MOV32_IMM(BPF_REG_1, 0),
			BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2),
			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
			BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
				   offsetof(struct test_val, foo)),
			BPF_EXIT_INSN(),
		},
		.fixup_map2 = { 3 },
		.errstr_unpriv = "R0 pointer arithmetic prohibited",
		.result_unpriv = REJECT,
		.result = ACCEPT,
	},
	{
		"invalid map access into an array with a constant",
		.insns = {
			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
			BPF_ST_MEM(BPF_DW, BPF_REG_0, (MAX_ENTRIES + 1) << 2,
				   offsetof(struct test_val, foo)),
			BPF_EXIT_INSN(),
		},
		.fixup_map2 = { 3 },
		.errstr = "invalid access to map value, value_size=48 off=48 size=8",
		.result = REJECT,
	},
	{
		"invalid map access into an array with a register",
		.insns = {
			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
			BPF_MOV64_IMM(BPF_REG_1, MAX_ENTRIES + 1),
			BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
			BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
				   offsetof(struct test_val, foo)),
			BPF_EXIT_INSN(),
		},
		.fixup_map2 = { 3 },
		.errstr_unpriv = "R0 pointer arithmetic prohibited",
		.errstr = "R0 min value is outside of the array range",
		.result_unpriv = REJECT,
		.result = REJECT,
	},
	{
		"invalid map access into an array with a variable",
		.insns = {
			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
			BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
			BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
			BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
				   offsetof(struct test_val, foo)),
			BPF_EXIT_INSN(),
		},
		.fixup_map2 = { 3 },
		.errstr_unpriv = "R0 pointer arithmetic prohibited",
		.errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.",
		.result_unpriv = REJECT,
		.result = REJECT,
	},
	{
		"invalid map access into an array with no floor check",
		.insns = {
			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
			BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
			BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES),
			BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1),
			BPF_MOV32_IMM(BPF_REG_1, 0),
			BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2),
			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
			BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
				   offsetof(struct test_val, foo)),
			BPF_EXIT_INSN(),
		},
		.fixup_map2 = { 3 },
		.errstr_unpriv = "R0 pointer arithmetic prohibited",
		.errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.",
		.result_unpriv = REJECT,
		.result = REJECT,
	},
	{
		"invalid map access into an array with a invalid max check",
		.insns = {
			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
			BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
			BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES + 1),
			BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1),
			BPF_MOV32_IMM(BPF_REG_1, 0),
			BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2),
			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
			BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
				   offsetof(struct test_val, foo)),
			BPF_EXIT_INSN(),
		},
		.fixup_map2 = { 3 },
		.errstr_unpriv = "R0 pointer arithmetic prohibited",
		.errstr = "invalid access to map value, value_size=48 off=44 size=8",
		.result_unpriv = REJECT,
		.result = REJECT,
	},
	{
		"invalid map access into an array with a invalid max check",
		.insns = {
			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10),
			BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8),
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
				    offsetof(struct test_val, foo)),
			BPF_EXIT_INSN(),
		},
		.fixup_map2 = { 3, 11 },
		.errstr_unpriv = "R0 pointer arithmetic prohibited",
		.errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.",
		.result_unpriv = REJECT,
		.result = REJECT,
	},
	{
		"multiple registers share map_lookup_elem result",
		.insns = {
			BPF_MOV64_IMM(BPF_REG_1, 10),
			BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
			BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0),
			BPF_EXIT_INSN(),
		},
		.fixup_map1 = { 4 },
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_SCHED_CLS
	},
	{
		"invalid memory access with multiple map_lookup_elem calls",
		.insns = {
			BPF_MOV64_IMM(BPF_REG_1, 10),
			BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_MOV64_REG(BPF_REG_8, BPF_REG_1),
			BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_8),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
			BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0),
			BPF_EXIT_INSN(),
		},
		.fixup_map1 = { 4 },
		.result = REJECT,
		.errstr = "R4 !read_ok",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS
	},
	{
		"valid indirect map_lookup_elem access with 2nd lookup in branch",
		.insns = {
			BPF_MOV64_IMM(BPF_REG_1, 10),
			BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_MOV64_REG(BPF_REG_8, BPF_REG_1),
			BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_MOV64_IMM(BPF_REG_2, 10),
			BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 0, 3),
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_8),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
			BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0),
			BPF_EXIT_INSN(),
		},
		.fixup_map1 = { 4 },
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_SCHED_CLS
	},
	{
		"multiple registers share map_lookup_elem bad reg type",
		.insns = {
			BPF_MOV64_IMM(BPF_REG_1, 10),
			BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
				     BPF_FUNC_map_lookup_elem),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
			BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
			BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
			BPF_MOV64_REG(BPF_REG_5, BPF_REG_0),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
			BPF_MOV64_IMM(BPF_REG_1, 1),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
			BPF_MOV64_IMM(BPF_REG_1, 2),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_3, 0, 1),
			BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 0),
			BPF_MOV64_IMM(BPF_REG_1, 3),
			BPF_EXIT_INSN(),
		},
		.fixup_map1 = { 4 },
		.result = REJECT,
		.errstr = "R3 invalid mem access 'inv'",
		.prog_type = BPF_PROG_TYPE_SCHED_CLS
	},
	{
		"invalid map access from else condition",
		.insns = {
			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
			BPF_LD_MAP_FD(BPF_REG_1, 0),
			BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
			BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
			BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
			BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES-1, 1),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 1),
			BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
			BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
			BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, offsetof(struct test_val, foo)),
			BPF_EXIT_INSN(),
		},
		.fixup_map2 = { 3 },
		.errstr = "R0 unbounded memory access, make sure to bounds check any array access into a map",
		.result = REJECT,
		.errstr_unpriv = "R0 pointer arithmetic prohibited",
		.result_unpriv = REJECT,
	},
	{
		"constant register |= constant should keep constant type",
		.insns = {
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48),
			BPF_MOV64_IMM(BPF_REG_2, 34),
			BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 13),
			BPF_MOV64_IMM(BPF_REG_3, 0),
			BPF_EMIT_CALL(BPF_FUNC_probe_read),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_TRACEPOINT,
	},
	{
		"constant register |= constant should not bypass stack boundary checks",
		.insns = {
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48),
			BPF_MOV64_IMM(BPF_REG_2, 34),
			BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 24),
			BPF_MOV64_IMM(BPF_REG_3, 0),
			BPF_EMIT_CALL(BPF_FUNC_probe_read),
			BPF_EXIT_INSN(),
		},
		.errstr = "invalid stack type R1 off=-48 access_size=58",
		.result = REJECT,
		.prog_type = BPF_PROG_TYPE_TRACEPOINT,
	},
	{
		"constant register |= constant register should keep constant type",
		.insns = {
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48),
			BPF_MOV64_IMM(BPF_REG_2, 34),
			BPF_MOV64_IMM(BPF_REG_4, 13),
			BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_4),
			BPF_MOV64_IMM(BPF_REG_3, 0),
			BPF_EMIT_CALL(BPF_FUNC_probe_read),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_TRACEPOINT,
	},
	{
		"constant register |= constant register should not bypass stack boundary checks",
		.insns = {
			BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48),
			BPF_MOV64_IMM(BPF_REG_2, 34),
			BPF_MOV64_IMM(BPF_REG_4, 24),
			BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_4),
			BPF_MOV64_IMM(BPF_REG_3, 0),
			BPF_EMIT_CALL(BPF_FUNC_probe_read),
			BPF_EXIT_INSN(),
		},
		.errstr = "invalid stack type R1 off=-48 access_size=58",
		.result = REJECT,
		.prog_type = BPF_PROG_TYPE_TRACEPOINT,
	},
	{
		"invalid direct packet write for LWT_IN",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
			BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
			BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr = "cannot write into packet",
		.result = REJECT,
		.prog_type = BPF_PROG_TYPE_LWT_IN,
	},
	{
		"invalid direct packet write for LWT_OUT",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
			BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
			BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.errstr = "cannot write into packet",
		.result = REJECT,
		.prog_type = BPF_PROG_TYPE_LWT_OUT,
	},
	{
		"direct packet write for LWT_XMIT",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
			BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
			BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_LWT_XMIT,
	},
	{
		"direct packet read for LWT_IN",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
			BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
			BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_LWT_IN,
	},
	{
		"direct packet read for LWT_OUT",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
			BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
			BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_LWT_OUT,
	},
	{
		"direct packet read for LWT_XMIT",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
				    offsetof(struct __sk_buff, data)),
			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
				    offsetof(struct __sk_buff, data_end)),
			BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
			BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
			BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
			BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
			BPF_MOV64_IMM(BPF_REG_0, 0),
			BPF_EXIT_INSN(),
		},
		.result = ACCEPT,
		.prog_type = BPF_PROG_TYPE_LWT_XMIT,
	},
	{
		"invalid access of tc_classid for LWT_IN",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
				    offsetof(struct __sk_buff, tc_classid)),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "invalid bpf_context access",
	},
	{
		"invalid access of tc_classid for LWT_OUT",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
				    offsetof(struct __sk_buff, tc_classid)),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "invalid bpf_context access",
	},
	{
		"invalid access of tc_classid for LWT_XMIT",
		.insns = {
			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
				    offsetof(struct __sk_buff, tc_classid)),
			BPF_EXIT_INSN(),
		},
		.result = REJECT,
		.errstr = "invalid bpf_context access",
	},
};

static int probe_filter_length(const struct bpf_insn *fp)
{
	int len;

	for (len = MAX_INSNS - 1; len > 0; --len)
		if (fp[len].code != 0 || fp[len].imm != 0)
			break;
	return len + 1;
}

static int create_map(uint32_t size_value, uint32_t max_elem)
{
	int fd;

	fd = bpf_map_create(BPF_MAP_TYPE_HASH, sizeof(long long),
			    size_value, max_elem, BPF_F_NO_PREALLOC);
	if (fd < 0)
		printf("Failed to create hash map '%s'!\n", strerror(errno));

	return fd;
}

static int create_prog_array(void)
{
	int fd;

	fd = bpf_map_create(BPF_MAP_TYPE_PROG_ARRAY, sizeof(int),
			    sizeof(int), 4, 0);
	if (fd < 0)
		printf("Failed to create prog array '%s'!\n", strerror(errno));

	return fd;
}

static char bpf_vlog[32768];

static void do_test_fixup(struct bpf_test *test, struct bpf_insn *prog,
			  int *fd_f1, int *fd_f2, int *fd_f3)
{
	int *fixup_map1 = test->fixup_map1;
	int *fixup_map2 = test->fixup_map2;
	int *fixup_prog = test->fixup_prog;

	/* Allocating HTs with 1 elem is fine here, since we only test
	 * for verifier and not do a runtime lookup, so the only thing
	 * that really matters is value size in this case.
	 */
	if (*fixup_map1) {
		*fd_f1 = create_map(sizeof(long long), 1);
		do {
			prog[*fixup_map1].imm = *fd_f1;
			fixup_map1++;
		} while (*fixup_map1);
	}

	if (*fixup_map2) {
		*fd_f2 = create_map(sizeof(struct test_val), 1);
		do {
			prog[*fixup_map2].imm = *fd_f2;
			fixup_map2++;
		} while (*fixup_map2);
	}

	if (*fixup_prog) {
		*fd_f3 = create_prog_array();
		do {
			prog[*fixup_prog].imm = *fd_f3;
			fixup_prog++;
		} while (*fixup_prog);
	}
}

static void do_test_single(struct bpf_test *test, bool unpriv,
			   int *passes, int *errors)
{
	struct bpf_insn *prog = test->insns;
	int prog_len = probe_filter_length(prog);
	int prog_type = test->prog_type;
	int fd_f1 = -1, fd_f2 = -1, fd_f3 = -1;
	int fd_prog, expected_ret;
	const char *expected_err;

	do_test_fixup(test, prog, &fd_f1, &fd_f2, &fd_f3);

	fd_prog = bpf_prog_load(prog_type ? : BPF_PROG_TYPE_SOCKET_FILTER,
				prog, prog_len * sizeof(struct bpf_insn),
				"GPL", bpf_vlog, sizeof(bpf_vlog));

	expected_ret = unpriv && test->result_unpriv != UNDEF ?
		       test->result_unpriv : test->result;
	expected_err = unpriv && test->errstr_unpriv ?
		       test->errstr_unpriv : test->errstr;
	if (expected_ret == ACCEPT) {
		if (fd_prog < 0) {
			printf("FAIL\nFailed to load prog '%s'!\n",
			       strerror(errno));
			goto fail_log;
		}
	} else {
		if (fd_prog >= 0) {
			printf("FAIL\nUnexpected success to load!\n");
			goto fail_log;
		}
		if (!strstr(bpf_vlog, expected_err)) {
			printf("FAIL\nUnexpected error message!\n");
			goto fail_log;
		}
	}

	(*passes)++;
	printf("OK\n");
close_fds:
	close(fd_prog);
	close(fd_f1);
	close(fd_f2);
	close(fd_f3);
	sched_yield();
	return;
fail_log:
	(*errors)++;
	printf("%s", bpf_vlog);
	goto close_fds;
}

static int do_test(bool unpriv, unsigned int from, unsigned int to)
{
	int i, passes = 0, errors = 0;

	for (i = from; i < to; i++) {
		struct bpf_test *test = &tests[i];

		/* Program types that are not supported by non-root we
		 * skip right away.
		 */
		if (unpriv && test->prog_type)
			continue;

		printf("#%d %s ", i, test->descr);
		do_test_single(test, unpriv, &passes, &errors);
	}

	printf("Summary: %d PASSED, %d FAILED\n", passes, errors);
	return errors ? -errors : 0;
}

int main(int argc, char **argv)
{
	struct rlimit rinf = { RLIM_INFINITY, RLIM_INFINITY };
	struct rlimit rlim = { 1 << 20, 1 << 20 };
	unsigned int from = 0, to = ARRAY_SIZE(tests);
	bool unpriv = geteuid() != 0;

	if (argc == 3) {
		unsigned int l = atoi(argv[argc - 2]);
		unsigned int u = atoi(argv[argc - 1]);

		if (l < to && u < to) {
			from = l;
			to   = u + 1;
		}
	} else if (argc == 2) {
		unsigned int t = atoi(argv[argc - 1]);

		if (t < to) {
			from = t;
			to   = t + 1;
		}
	}

	setrlimit(RLIMIT_MEMLOCK, unpriv ? &rlim : &rinf);
	return do_test(unpriv, from, to);
}