From: Stephan Mueller <smueller@chronox.de>
To: "'Herbert Xu" <herbert@gondor.apana.org.au>
Cc: linux-crypto@vger.kernel.org, "'LKML'" <linux-kernel@vger.kernel.org>
Subject: [PATCH RESEND] crypto: algif_rng - zeroize buffer with random data
Date: Fri, 13 Mar 2015 11:44:07 +0100 [thread overview]
Message-ID: <1488589.sO3PXAYh7F@tachyon.chronox.de> (raw)
Due to the change to RNGs to always return zero in success case, the RNG
interface must zeroize the buffer with the length provided by the
caller.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
---
crypto/algif_rng.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/crypto/algif_rng.c b/crypto/algif_rng.c
index 67f612c..a346173 100644
--- a/crypto/algif_rng.c
+++ b/crypto/algif_rng.c
@@ -87,7 +87,7 @@ static int rng_recvmsg(struct kiocb *unused, struct socket *sock,
return genlen;
err = memcpy_to_msg(msg, result, len);
- memzero_explicit(result, genlen);
+ memzero_explicit(result, len);
return err ? err : len;
}
--
2.1.0
next reply other threads:[~2015-03-13 10:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-13 10:44 Stephan Mueller [this message]
2015-03-16 10:49 ` Herbert Xu
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