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crypto: hisilicon/hpre - fix memory leak in hpre_curve25519_src_init()

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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>
This commit is contained in:
Weili Qian 2021-12-11 16:17:19 +08:00 committed by Herbert Xu
parent 244d22ffd6
commit 51fa916b81
1 changed files with 1 additions and 1 deletions
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2
drivers/crypto/hisilicon/hpre/hpre_crypto.c
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@ -1862,7 +1862,7 @@ 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);
}