From: Pan Bian <bianpan2016@xxxxxxx> In function public_key_verify_signature(), returns variable ret on error paths. When the call to kmalloc() fails, the value of ret is 0, and it is not set to an errno before returning. This patch fixes the bug. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188891 Signed-off-by: Pan Bian <bianpan2016@xxxxxxx> --- crypto/asymmetric_keys/public_key.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/crypto/asymmetric_keys/public_key.c b/crypto/asymmetric_keys/public_key.c index fd76b5f..1dc65ba 100644 --- a/crypto/asymmetric_keys/public_key.c +++ b/crypto/asymmetric_keys/public_key.c @@ -123,8 +123,10 @@ int public_key_verify_signature(const struct public_key *pkey, outlen = crypto_akcipher_maxsize(tfm); output = kmalloc(outlen, GFP_KERNEL); - if (!output) + if (!output) { + ret = -ENOMEM; goto error_free_req; + } sg_init_one(&sig_sg, sig->s, sig->s_size); sg_init_one(&digest_sg, output, outlen); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
