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(parent: 971fb50) | patch
bpf: Avoid incorrect -EFAULT error in BPF_LOG_KERNEL mode
authorAndrii Nakryiko <andrii@kernel.org>
Thu, 6 Apr 2023 23:41:55 +0000 (16:41 -0700)
committerDaniel Borkmann <daniel@iogearbox.net>
Tue, 11 Apr 2023 16:05:43 +0000 (18:05 +0200)
commitcbedb42a0da3bb48819b2200af4b4cb5d922c518
tree402095837ef7b58c81bd4dbd09b4182f3817e21atree | snapshot
parent971fb5057d787d0a7e7c8cb910207c82e2db920ecommit | diff
bpf: Avoid incorrect -EFAULT error in BPF_LOG_KERNEL mode

If verifier log is in BPF_LOG_KERNEL mode, no log->ubuf is expected and
it stays NULL throughout entire verification process. Don't erroneously
return -EFAULT in such case.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Lorenz Bauer <lmb@isovalent.com>
Link: https://lore.kernel.org/bpf/20230406234205.323208-10-andrii@kernel.org
kernel/bpf/verifier.c diff | blob | history
Domain: System / Kernel;