netfilter: nfnetlink_log: use proper helper for fetching physinif

jira LE-3201
cve CVE-2024-35839
Rebuild_History Non-Buildable kernel-rt-4.18.0-553.27.1.rt7.368.el8_10
commit-author Pavel Tikhomirov <[email protected]>
commit c3f9fd5

We don't use physindev in __build_packet_message except for getting
physinif from it. So let's switch to nf_bridge_get_physinif to get what
we want directly.

	Signed-off-by: Pavel Tikhomirov <[email protected]>
	Reviewed-by: Simon Horman <[email protected]>
	Signed-off-by: Pablo Neira Ayuso <[email protected]>
(cherry picked from commit c3f9fd5)
	Signed-off-by: Jonathan Maple <[email protected]>

Author: PlaidCat

net/netfilter/nfnetlink_log.c

@@ -450,18 +450,18 @@ __build_packet_message(struct nfnl_log_net *log,
 					 htonl(br_port_get_rcu(indev)->br->dev->ifindex)))
 				goto nla_put_failure;
 		} else {
-			struct net_device *physindev;
+			int physinif;
 
 			/* Case 2: indev is bridge group, we need to look for
 			 * physical device (when called from ipv4) */
 			if (nla_put_be32(inst->skb, NFULA_IFINDEX_INDEV,
 					 htonl(indev->ifindex)))
 				goto nla_put_failure;
 
-			physindev = nf_bridge_get_physindev(skb);
-			if (physindev &&
+			physinif = nf_bridge_get_physinif(skb);
+			if (physinif &&
 			    nla_put_be32(inst->skb, NFULA_IFINDEX_PHYSINDEV,
-					 htonl(physindev->ifindex)))
+					 htonl(physinif)))
 				goto nla_put_failure;
 		}
 #endif