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authorThorsten Blum <thorsten.blum@toblux.com>2024-08-06 00:11:30 +0200
committerHerbert Xu <herbert@gondor.apana.org.au>2024-08-17 13:55:49 +0800
commit18e2188c4b2069cf52c12344b47b4f7ac982f555 (patch)
treeda8c1cb66e0333d1d02f990ecc2b94569700e19e /crypto
parent2d6213bd592b4731b53ece3492f9d1d18e97eb5e (diff)
crypto: chacha20poly1305 - Annotate struct chachapoly_ctx with __counted_by()
Add the __counted_by compiler attribute to the flexible array member salt to improve access bounds-checking via CONFIG_UBSAN_BOUNDS and CONFIG_FORTIFY_SOURCE. Reviewed-by: Kees Cook <kees@kernel.org> Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/chacha20poly1305.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/chacha20poly1305.c b/crypto/chacha20poly1305.c
index 9e4651330852..d740849f1c19 100644
--- a/crypto/chacha20poly1305.c
+++ b/crypto/chacha20poly1305.c
@@ -27,7 +27,7 @@ struct chachapoly_ctx {
struct crypto_ahash *poly;
/* key bytes we use for the ChaCha20 IV */
unsigned int saltlen;
- u8 salt[];
+ u8 salt[] __counted_by(saltlen);
};
struct poly_req {