Commit b7eea454 authored by Steffen Klassert's avatar Steffen Klassert

xfrm: Fix refcount imbalance in xfrm_lookup

xfrm_lookup must return a dst_entry with a refcount for the caller.
Git commit 1a1ccc96 ("xfrm: Remove caching of xfrm_policy_sk_bundles")
removed this refcount for the socket policy case accidentally.
This patch restores it and sets DST_NOCACHE flag to make sure
that the dst_entry is freed when the refcount becomes null.

Fixes: 1a1ccc96 ("xfrm: Remove caching of xfrm_policy_sk_bundles")
Signed-off-by: default avatarSteffen Klassert <steffen.klassert@secunet.com>
parent d7933ab7
......@@ -2097,6 +2097,8 @@ struct dst_entry *xfrm_lookup(struct net *net, struct dst_entry *dst_orig,
goto no_transform;
}
dst_hold(&xdst->u.dst);
xdst->u.dst.flags |= DST_NOCACHE;
route = xdst->route;
}
}
......
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