tree 75ca1e0f1847c469ac9e6a6aed6cb0534d97a50b
parent ec27c3568a34c7fe5fcf4ac0a354eda77687f7eb
author Chenbo Feng <fengc@google.com> 1508356826 -0700
committer David S. Miller <davem@davemloft.net> 1508502779 +0100

selinux: bpf: Add addtional check for bpf object file receive

Introduce a bpf object related check when sending and receiving files
through unix domain socket as well as binder. It checks if the receiving
process have privilege to read/write the bpf map or use the bpf program.
This check is necessary because the bpf maps and programs are using a
anonymous inode as their shared inode so the normal way of checking the
files and sockets when passing between processes cannot work properly on
eBPF object. This check only works when the BPF_SYSCALL is configured.

Signed-off-by: Chenbo Feng <fengc@google.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Reviewed-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>