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crypto: algif_rng - zeroize buffer with random data
author
Stephan Mueller
<smueller@chronox.de>
Fri, 13 Mar 2015 10:44:07 +0000
(11:44 +0100)
committer
Herbert Xu
<herbert@gondor.apana.org.au>
Mon, 16 Mar 2015 10:46:25 +0000
(21:46 +1100)
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>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto/algif_rng.c
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diff --git
a/crypto/algif_rng.c
b/crypto/algif_rng.c
index
67f612c
..
a346173
100644
(file)
--- 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,
gen
len);
+ memzero_explicit(result, len);
return err ? err : len;
}