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| author |   Stanislav Fomichev <sdf@google.com> | 2019-06-19 12:01:05 -0700 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2019-06-24 15:53:19 +0200 |
| commit | e4f07120210a1794c1f1ae64d209a2fbc7bd2682 (patch) | |
| tree | d606d6fca52f90e1729dc690f1ec88e705d89b93 /samples/bpf/xdp_redirect_user.c | |
| parent | bpf: fix the check that forwarding is enabled in bpf_ipv6_fib_lookup (diff) | |
| download | linux-dev-e4f07120210a1794c1f1ae64d209a2fbc7bd2682.tar.xz linux-dev-e4f07120210a1794c1f1ae64d209a2fbc7bd2682.zip | |
bpf: fix NULL deref in btf_type_is_resolve_source_only
Commit 1dc92851849c ("bpf: kernel side support for BTF Var and DataSec")
added invocations of btf_type_is_resolve_source_only before
btf_type_nosize_or_null which checks for the NULL pointer.
Swap the order of btf_type_nosize_or_null and
btf_type_is_resolve_source_only to make sure the do the NULL pointer
check first.
Fixes: 1dc92851849c ("bpf: kernel side support for BTF Var and DataSec")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'samples/bpf/xdp_redirect_user.c')
0 files changed, 0 insertions, 0 deletions