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crypto: rng_make_prng prevent buf overflow

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with bits set to 1023, buf of 256 bytes was filled by rng_get_bytes
up to 257 bytes. Buf is now 258 bytes so it's no longer problem.

Signed-off-by: Jan Friesse <jfriesse@redhat.com>
Reviewed-by: Steven Dake <sdake@redhat.com>
This commit is contained in:
Jan Friesse 2011-05-30 16:55:45 +02:00
parent afa0398ca4
commit 50f05bfa15
1 changed files with 1 additions and 1 deletions
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2
exec/crypto.c
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@ -1314,7 +1314,7 @@ unsigned long rng_get_bytes(unsigned char *buf, unsigned long len,
int rng_make_prng(int bits, int wprng, prng_state *prng,
void (*callback)(void))
{
unsigned char buf[256];
unsigned char buf[258];
int err;
if (bits < 64 || bits > 1024) {