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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>
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@ -27,7 +27,7 @@ struct chachapoly_ctx {
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struct crypto_ahash *poly;
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/* key bytes we use for the ChaCha20 IV */
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unsigned int saltlen;
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u8 salt[];
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u8 salt[] __counted_by(saltlen);
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};
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struct poly_req {
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