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-rw-r--r--include/linux/crypto.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index 9c8776d0ada8..90998348e564 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -1412,6 +1412,9 @@ static inline int crypto_aead_encrypt(struct aead_request *req)
*/
static inline int crypto_aead_decrypt(struct aead_request *req)
{
+ if (req->cryptlen < crypto_aead_authsize(crypto_aead_reqtfm(req)))
+ return -EINVAL;
+
return crypto_aead_crt(crypto_aead_reqtfm(req))->decrypt(req);
}