Patch "net: ipv4: fix table id in getroute response" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

net: ipv4: fix table id in getroute response

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
net-ipv4-fix-table-id-in-getroute-response.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: David Ahern <[email protected]>
Date: Wed, 11 Jan 2017 15:42:17 -0800
Subject: net: ipv4: fix table id in getroute response

From: David Ahern <[email protected]>

[ Upstream commit 8a430ed50bb1b19ca14a46661f3b1b35f2fb5c39 ]

rtm_table is an 8-bit field while table ids are allowed up to u32. Commit 709772e6e065 ("net: Fix routing tables with id > 255 for legacy software") added the preference to set rtm_table in dumps to RT_TABLE_COMPAT if the table id is > 255. The table id returned on get route requests should do the same.

---
 net/ipv4/route.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

@@ -2430,7 +2430,7 @@ static int rt_fill_info(struct net *net,
 	r->rtm_dst_len	= 32;
 	r->rtm_src_len	= 0;
 	r->rtm_tos	= fl4->flowi4_tos;
-	r->rtm_table	= table_id;
+	r->rtm_table	= table_id < 256 ? table_id : RT_TABLE_COMPAT;
 	if (nla_put_u32(skb, RTA_TABLE, table_id))
 		goto nla_put_failure;
 	r->rtm_type	= rt->rt_type;

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/net-lwtunnel-handle-lwtunnel_fill_encap-failure.patch queue-4.4/net-ipv4-fix-table-id-in-getroute-response.patch