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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 <[email protected]>
Signed-off-by: Thorsten Blum <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Kees Cook <[email protected]>
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Thorsten Blum authored and Kees Cook committed 2026-01-14 14:43:18 -08:00
1 parent 1d1fd18869
commit dacbfc1678
1 file changed
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include/uapi/linux/if_alg.h
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@@ -42,7 +42,7 @@ struct sockaddr_alg_new {
struct af_alg_iv {
__u32 ivlen;
__u8 iv[];
__u8 iv[] __counted_by(ivlen);
};
/* Socket options */