| commit | d82bccc69041a51f7b7b9b4a36db0772f4cdba21 | |
| author | Alexei Starovoitov <ast@fb.com> | |
| Tue, 12 Apr 2016 17:26:19 +0000 (12 10:26 -0700) | ||
| committer | David S. Miller <davem@davemloft.net> | |
| Thu, 14 Apr 2016 05:31:50 +0000 (14 01:31 -0400) | ||
| tree | e7566bc2ab7ba1ec1bd316b87b62c128dbf63f18 | treesnapshot (tar.gz zip) |
| parent | 3dcd493fbebfd631913df6e2773cc295d3bf7d22 | commitdiff |
bpf/verifier: reject invalid LD_ABS | BPF_DW instruction
verifier must check for reserved size bits in instruction opcode and
reject BPF_LD | BPF_ABS | BPF_DW and BPF_LD | BPF_IND | BPF_DW instructions,
otherwise interpreter will WARN_RATELIMIT on them during execution.
Fixes: ddd872bc3098 ("bpf: verifier: add checks for BPF_ABS | BPF_IND instructions")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
verifier must check for reserved size bits in instruction opcode and
reject BPF_LD | BPF_ABS | BPF_DW and BPF_LD | BPF_IND | BPF_DW instructions,
otherwise interpreter will WARN_RATELIMIT on them during execution.
Fixes: ddd872bc3098 ("bpf: verifier: add checks for BPF_ABS | BPF_IND instructions")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
| kernel/bpf/verifier.c | diffblobblamehistory |