bpf: make sure scalar args don't accept __arg_nonnull tag

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Move scalar arg processing in btf_prepare_func_args() after all pointer
arg processing is done. This makes it easier to do validation. One
example of unintended behavior right now is ability to specify
__arg_nonnull for integer/enum arguments. This patch fixes this.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20240105000909.2818934-3-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Andrii Nakryiko 2024-01-04 16:09:03 -08:00 • committed by Alexei Starovoitov

parent e31f98c1af

commit 18810ad392

1 changed files with 4 additions and 4 deletions

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kernel/bpf/btf.c

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