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authorAlexander Duyck <alexander.h.duyck@intel.com>2017-01-02 13:32:54 -0800
committerDavid S. Miller <davem@davemloft.net>2017-01-03 09:38:34 -0500
commit5350d54f6cd12eaff623e890744c79b700bd3f17 (patch)
treece5b6842e8e35439b2a44b98df7b75aa8107417c /net/ipv4
parent515028fe29d84a15f77d071a13b2d34eb3d137af (diff)
ipv4: Do not allow MAIN to be alias for new LOCAL w/ custom rules
In the case of custom rules being present we need to handle the case of the LOCAL table being intialized after the new rule has been added. To address that I am adding a new check so that we can make certain we don't use an alias of MAIN for LOCAL when allocating a new table. Fixes: 0ddcf43d5d4a ("ipv4: FIB Local/MAIN table collapse") Reported-by: Oliver Brunel <jjk@jjacky.com> Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/fib_frontend.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 3ff8938893ec..eae0332b0e8c 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -85,7 +85,7 @@ struct fib_table *fib_new_table(struct net *net, u32 id)
if (tb)
return tb;
- if (id == RT_TABLE_LOCAL)
+ if (id == RT_TABLE_LOCAL && !net->ipv4.fib_has_custom_rules)
alias = fib_new_table(net, RT_TABLE_MAIN);
tb = fib_trie_table(id, alias);