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Diffstat (limited to 'net/xfrm/xfrm_replay.c')
-rw-r--r--net/xfrm/xfrm_replay.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/xfrm/xfrm_replay.c b/net/xfrm/xfrm_replay.c
index ce56d659c5..bc56c63057 100644
--- a/net/xfrm/xfrm_replay.c
+++ b/net/xfrm/xfrm_replay.c
@@ -778,7 +778,8 @@ int xfrm_init_replay(struct xfrm_state *x, struct netlink_ext_ack *extack)
}
if (x->props.flags & XFRM_STATE_ESN) {
- if (replay_esn->replay_window == 0) {
+ if (replay_esn->replay_window == 0 &&
+ (!x->dir || x->dir == XFRM_SA_DIR_IN)) {
NL_SET_ERR_MSG(extack, "ESN replay window must be > 0");
return -EINVAL;
}