提交 5c5d281a 编写于 作者: P Patrick McHardy 提交者: David S. Miller

[XFRM]: Fix existence lookup in xfrm_state_find

Use 'daddr' instead of &tmpl->id.daddr, since the latter
might be zero.  Also, only perform the lookup when
tmpl->id.spi is non-zero.
Signed-off-by: NPatrick McHardy <kaber@trash.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 7938109f
......@@ -357,8 +357,9 @@ xfrm_state_find(xfrm_address_t *daddr, xfrm_address_t *saddr,
x = best;
if (!x && !error && !acquire_in_progress) {
x0 = afinfo->state_lookup(&tmpl->id.daddr, tmpl->id.spi, tmpl->id.proto);
if (x0 != NULL) {
if (tmpl->id.spi &&
(x0 = afinfo->state_lookup(daddr, tmpl->id.spi,
tmpl->id.proto)) != NULL) {
xfrm_state_put(x0);
error = -EEXIST;
goto out;
......
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