xfrm: put policies when reusing pcpu xdst entry

We need to put the policies when re-using the pcpu xdst entry, else
this leaks the reference.

Fixes: ec30d78c14a813db39a647b6a348b428 ("xfrm: add xdst pcpu cache")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 038ec68f6901..70aa5cb0c659 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1839,6 +1839,7 @@ xfrm_resolve_and_create_bundle(struct xfrm_policy **pols, int num_pols,
                    sizeof(struct xfrm_policy *) * num_pols) == 0 &&
             xfrm_xdst_can_reuse(xdst, xfrm, err)) {
                 dst_hold(&xdst->u.dst);
+                xfrm_pols_put(pols, num_pols);
                 while (err > 0)
                         xfrm_state_put(xfrm[--err]);
                 return xdst;