diff mbox series

[5.15,563/846] crypto: hisilicon/hpre - fix memory leak in hpre_curve25519_src_init()

Message ID 20220124184120.454213089@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman Jan. 24, 2022, 6:41 p.m. UTC 
From: Weili Qian <qianweili@huawei.com>

[ Upstream commit 51fa916b81e5f406a74f14a31a3a228c3cc060ad ]

hpre_curve25519_src_init() allocates memory for 'ptr' before calling
memcmp(). If memcmp() returns 0, the function will return '-EINVAL'
without freeing memory.

Signed-off-by: Weili Qian <qianweili@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/hisilicon/hpre/hpre_crypto.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/crypto/hisilicon/hpre/hpre_crypto.c b/drivers/crypto/hisilicon/hpre/hpre_crypto.c
index a032c192ef1d6..7ba7641723a0b 100644
--- a/drivers/crypto/hisilicon/hpre/hpre_crypto.c
+++ b/drivers/crypto/hisilicon/hpre/hpre_crypto.c
@@ -1865,7 +1865,7 @@  static int hpre_curve25519_src_init(struct hpre_asym_request *hpre_req,
 	 */
 	if (memcmp(ptr, p, ctx->key_sz) == 0) {
 		dev_err(dev, "gx is p!\n");
-		return -EINVAL;
+		goto err;
 	} else if (memcmp(ptr, p, ctx->key_sz) > 0) {
 		hpre_curve25519_src_modulo_p(ptr);
 	}