Commit 8b06a24b authored by Antony Antony's avatar Antony Antony Committed by Steffen Klassert
Browse files

xfrm: fix possible derferencing in error path 



Fix derferencing pointer when xfrm_policy_lookup_bytype returns an
 error.

Fixes: 63b21cab ("xfrm: introduce forwarding of ICMP Error messages")
Reported-by: default avatarDan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/kernel-janitors/f6ef0d0d-96de-4e01-9dc3-c1b3a6338653@moroto.mountain/


Signed-off-by: default avatarAntony Antony <antony.antony@secunet.com>
Signed-off-by: default avatarSteffen Klassert <steffen.klassert@secunet.com>
parent bccb798e

net/xfrm/xfrm_policy.c

+2 −0
Original line number Diff line number Diff line
@@ -3593,6 +3593,8 @@ xfrm_policy *xfrm_in_fwd_icmp(struct sk_buff *skb, 
			return pol;



		pol = xfrm_policy_lookup(net, &fl1, family, XFRM_POLICY_FWD, if_id);

		if (IS_ERR(pol))

			pol = NULL;

	}



	return pol;