From 40e7c725ab0f135aab0d969d9237426b55a14641 Mon Sep 17 00:00:00 2001 From: David Ahern Date: Wed, 11 Jan 2017 15:42:17 -0800 Subject: [PATCH] net: ipv4: fix table id in getroute response [ 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. Fixes: c36ba6603a11 ("net: Allow user to get table id from route lookup") Signed-off-by: David Ahern Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- net/ipv4/route.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 7ceb8a574a50..ef2f527a119b 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -2430,7 +2430,7 @@ static int rt_fill_info(struct net *net, __be32 dst, __be32 src, u32 table_id, 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; -- 2.34.1