diff options
| author | Sebastian Andrzej Siewior <[email protected]> | 2024-07-10 16:16:31 +0200 |
|---|---|---|
| committer | Martin KaFai Lau <[email protected]> | 2024-07-10 09:58:52 -0700 |
| commit | c13fda93aca118b8e5cd202e339046728ee7dddb (patch) | |
| tree | e9b50594237f91eac6a7372ed2509b514d7f599d | |
| parent | 605c96997d89c01c11bbddb4db820ede570581c7 (diff) | |
bpf: Remove tst_run from lwt_seg6local_prog_ops.
The syzbot reported that the lwt_seg6 related BPF ops can be invoked
via bpf_test_run() without without entering input_action_end_bpf()
first.
Martin KaFai Lau said that self test for BPF_PROG_TYPE_LWT_SEG6LOCAL
probably didn't work since it was introduced in commit 04d4b274e2a
("ipv6: sr: Add seg6local action End.BPF"). The reason is that the
per-CPU variable seg6_bpf_srh_states::srh is never assigned in the self
test case but each BPF function expects it.
Remove test_run for BPF_PROG_TYPE_LWT_SEG6LOCAL.
Suggested-by: Martin KaFai Lau <[email protected]>
Reported-by: [email protected]
Fixes: d1542d4ae4df ("seg6: Use nested-BH locking for seg6_bpf_srh_states.")
Fixes: 004d4b274e2a ("ipv6: sr: Add seg6local action End.BPF")
Signed-off-by: Sebastian Andrzej Siewior <[email protected]>
Acked-by: Daniel Borkmann <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Martin KaFai Lau <[email protected]>
| -rw-r--r-- | net/core/filter.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/net/core/filter.c b/net/core/filter.c index d767880c276d..4cf1d34f7617 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -11053,7 +11053,6 @@ const struct bpf_verifier_ops lwt_seg6local_verifier_ops = { }; const struct bpf_prog_ops lwt_seg6local_prog_ops = { - .test_run = bpf_prog_test_run_skb, }; const struct bpf_verifier_ops cg_sock_verifier_ops = { |