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authorPan Bian <bianpan2016@163.com>2016-12-13 12:26:18 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2016-12-14 13:33:13 +0300
commitfbb726302a9ae06b373e04a54ad30eafa288dd10 (patch)
treedbb7b338e7e26073ec1d1bc25731f8b39595a8c3
parent04b46fbdea5e31ffd745a34fa61269a69ba9f47a (diff)
downloadlinux-fbb726302a9ae06b373e04a54ad30eafa288dd10.tar.xz
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>
-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)