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crypto: asymmetric_keys - set error code on failure

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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>
This commit is contained in:
Pan Bian 2016-12-13 09:26:18 +00:00 committed by Herbert Xu
parent 04b46fbdea
commit fbb726302a
1 changed files with 1 additions and 0 deletions
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crypto/asymmetric_keys/public_key.c
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@ -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)