Commit 3f602b08 authored Apr 25, 2011 by Steffen Klassert Committed by David S. Miller Apr 26, 2011

xfrm: Fix replay window size calculation on initialization



On replay initialization, we compute the size of the replay
buffer to see if the replay window fits into the buffer.
This computation lacks a mutliplication by 8 because we need
the size in bit, not in byte. So we might return an error
even though the replay window would fit into the buffer.
This patch fixes this issue.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 0972ddb2

net/xfrm/xfrm_replay.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -532,7 +532,7 @@ int xfrm_init_replay(struct xfrm_state *x)

		if (replay_esn) {
		if (replay_esn->replay_window >
		replay_esn->bmp_len * sizeof(__u32))
		replay_esn->bmp_len * sizeof(__u32) * 8)
		return -EINVAL;

		if ((x->props.flags & XFRM_STATE_ESN) && x->replay_esn)

Admin message