bpf: Fix missing -EFAULT return on user log buf error in btf_parse()

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btf_parse() is missing -EFAULT error return if log->ubuf was NULL-ed out
due to error while copying data into user-provided buffer. Add it, but
handle a special case of BPF_LOG_KERNEL in which log->ubuf is always NULL.

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/20230406234205.323208-9-andrii@kernel.org

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Andrii Nakryiko 2023-04-06 16:41:54 -07:00 • committed by Daniel Borkmann

parent 24bc80887a

commit 971fb5057d

1 changed files with 4 additions and 0 deletions

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kernel/bpf/btf.c

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