* [PATCH] crypto: algif_rng - zeroize buffer holding random data
@ 2015-03-11 6:45 Stephan Mueller
2015-03-13 10:31 ` Herbert Xu
0 siblings, 1 reply; 2+ messages in thread
From: Stephan Mueller @ 2015-03-11 6:45 UTC (permalink / raw)
To: 'Herbert Xu; +Cc: linux-kernel, linux-crypto
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
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2015-03-11 6:45 [PATCH] crypto: algif_rng - zeroize buffer holding random data Stephan Mueller
2015-03-13 10:31 ` Herbert Xu
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