| commit | ea25f914dc164c8d56b36147ecc86bc65f83c469 | [log] [tgz] |
|---|---|---|
| author | Jann Horn <jannh@google.com> | Mon Dec 18 20:11:57 2017 -0800 |
| committer | Daniel Borkmann <daniel@iogearbox.net> | Thu Dec 21 02:15:41 2017 +0100 |
| tree | ae74d60039bef82d303017c162822f4fa8ddbf02 | |
| parent | 468f6eafa6c44cb2c5d8aad35e12f06c240a812a [diff] |
bpf: fix missing error return in check_stack_boundary()
Prevent indirect stack accesses at non-constant addresses, which would
permit reading and corrupting spilled pointers.
Fixes: f1174f77b50c ("bpf/verifier: rework value tracking")
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>