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authorAndreas Henriksson <andreas@fatal.se>2013-11-07 18:26:38 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-12-08 07:29:41 -0800
commitc137ba1634fce3c456a3e9983f70868708c13711 (patch)
tree9ab580a3981adc898d65ac651241e91b309a115f /net
parent44d19f5a04ae4e433548ba2f25e4d2ccfcac765e (diff)
net: Fix "ip rule delete table 256"
[ Upstream commit 13eb2ab2d33c57ebddc57437a7d341995fc9138c ] When trying to delete a table >= 256 using iproute2 the local table will be deleted. The table id is specified as a netlink attribute when it needs more then 8 bits and iproute2 then sets the table field to RT_TABLE_UNSPEC (0). Preconditions to matching the table id in the rule delete code doesn't seem to take the "table id in netlink attribute" into condition so the frh_get_table helper function never gets to do its job when matching against current rule. Use the helper function twice instead of peaking at the table value directly. Originally reported at: http://bugs.debian.org/724783 Reported-by: Nicolas HICHER <nhicher@avencall.com> Signed-off-by: Andreas Henriksson <andreas@fatal.se> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
-rw-r--r--net/core/fib_rules.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index c02e63c908d..c0c21b1ce1e 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -443,7 +443,8 @@ static int fib_nl_delrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
if (frh->action && (frh->action != rule->action))
continue;
- if (frh->table && (frh_get_table(frh, tb) != rule->table))
+ if (frh_get_table(frh, tb) &&
+ (frh_get_table(frh, tb) != rule->table))
continue;
if (tb[FRA_PRIORITY] &&