From: Colin Ian King <>

afinfo is being null checked before a call afinfo->init_tempsel
so afinfo may be potentially null. ifinfo may still be null in
the case were it is not updated when family == tmpl->encap_family,
hence we may hit a null pointer dereference in the call to

Fix this by adding a null ptr check before calling init_temprop.

Signed-off-by: Colin Ian King <>
 net/xfrm/xfrm_state.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index a62097e..5083418 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -656,7 +656,8 @@ xfrm_init_tempstate(struct xfrm_state *x, const struct 
flowi *fl,
                if (!afinfo)
-       afinfo->init_temprop(x, tmpl, daddr, saddr);
+       if (afinfo)
+               afinfo->init_temprop(x, tmpl, daddr, saddr);
 static struct xfrm_state *__xfrm_state_lookup(struct net *net, u32 mark,

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