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crypto: af_alg - Annotate struct af_alg_iv with __counted_by

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Add the __counted_by() compiler attribute to the flexible array member
'iv' to improve access bounds-checking via CONFIG_UBSAN_BOUNDS and
CONFIG_FORTIFY_SOURCE.

Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://patch.msgid.link/20260105122402.2685-2-thorsten.blum@linux.dev
Signed-off-by: Kees Cook <kees@kernel.org>
This commit is contained in:
Thorsten Blum 2026-01-05 13:24:03 +01:00 committed by Kees Cook
parent 1d1fd18869
commit dacbfc1678
1 changed files with 1 additions and 1 deletions
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2
include/uapi/linux/if_alg.h
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@ -42,7 +42,7 @@ struct sockaddr_alg_new {
struct af_alg_iv { struct af_alg_iv {
__u32 ivlen; __u32 ivlen;
__u8 iv[]; __u8 iv[] __counted_by(ivlen);
}; };
/* Socket options */ /* Socket options */