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authorPan Bian <bianpan2016@163.com>2016-12-13 09:26:18 +0000
committerHerbert Xu <herbert@gondor.apana.org.au>2016-12-14 18:33:13 +0800
commitfbb726302a9ae06b373e04a54ad30eafa288dd10 (patch)
treedbb7b338e7e26073ec1d1bc25731f8b39595a8c3 /crypto
parentcrypto: testmgr - fix overlap in chunked tests again (diff)
downloadwireguard-linux-fbb726302a9ae06b373e04a54ad30eafa288dd10.tar.xz
wireguard-linux-fbb726302a9ae06b373e04a54ad30eafa288dd10.zip
crypto: asymmetric_keys - set error code on failure
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@163.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/asymmetric_keys/public_key.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/crypto/asymmetric_keys/public_key.c b/crypto/asymmetric_keys/public_key.c
index fd76b5fc3b3a..d3a989e718f5 100644
--- a/crypto/asymmetric_keys/public_key.c
+++ b/crypto/asymmetric_keys/public_key.c
@@ -121,6 +121,7 @@ int public_key_verify_signature(const struct public_key *pkey,
if (ret)
goto error_free_req;
+ ret = -ENOMEM;
outlen = crypto_akcipher_maxsize(tfm);
output = kmalloc(outlen, GFP_KERNEL);
if (!output)