| commit | 4288ea006c73e37c2a4f60dfaef20dd167b8df31 | [log] [tgz] |
|---|---|---|
| author | Roman Gushchin <guro@fb.com> | Fri Sep 28 14:33:21 2018 +0100 |
| committer | Daniel Borkmann <daniel@iogearbox.net> | Fri Sep 28 15:50:23 2018 +0200 |
| tree | 6e43c3f3344f8f54baed168fb23f16bffcf4c7aa | |
| parent | d4ce58082f206bf6e7d697380c7bc5480a8b0264 [diff] |
bpf: harden flags check in cgroup_storage_update_elem()
cgroup_storage_update_elem() shouldn't accept any flags
argument values except BPF_ANY and BPF_EXIST to guarantee
the backward compatibility, had a new flag value been added.
Fixes: de9cbbaadba5 ("bpf: introduce cgroup storage maps")
Signed-off-by: Roman Gushchin <guro@fb.com>
Reported-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>