Toshiaki Makita
b4e09b29c7
bridge: Fix memory leak when deleting bridge with vlan filtering enabled
We currently don't call br_vlan_flush() when deleting a bridge, which
leads to memory leak if br->vlan_info is allocated.
Steps to reproduce:
while :
do
brctl addbr br0
bridge vlan add dev br0 vid 10 self
brctl delbr br0
done
We can observe the cache size of corresponding slab entry
(as kmalloc-2048 in SLUB) is increased.
kmemleak output:
unreferenced object 0xffff8800b68a7000 (size 2048):
comm "bridge", pid 2086, jiffies 4295774704 (age 47.656s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 48 9b 36 00 88 ff ff .........H.6....
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff815eb6ae>] kmemleak_alloc+0x4e/0xb0
[<ffffffff8116a1ca>] kmem_cache_alloc_trace+0xca/0x220
[<ffffffffa03eddd6>] br_vlan_add+0x66/0xe0 [bridge]
[<ffffffffa03e543c>] br_setlink+0x2dc/0x340 [bridge]
[<ffffffff8150e481>] rtnl_bridge_setlink+0x101/0x200
[<ffffffff8150d9d9>] rtnetlink_rcv_msg+0x99/0x260
[<ffffffff81528679>] netlink_rcv_skb+0xa9/0xc0
[<ffffffff8150d938>] rtnetlink_rcv+0x28/0x30
[<ffffffff81527ccd>] netlink_unicast+0xdd/0x190
[<ffffffff8152807f>] netlink_sendmsg+0x2ff/0x740
[<ffffffff814e8368>] sock_sendmsg+0x88/0xc0
[<ffffffff814e8ac8>] ___sys_sendmsg.part.14+0x298/0x2b0
[<ffffffff814e91de>] __sys_sendmsg+0x4e/0x90
[<ffffffff814e922e>] SyS_sendmsg+0xe/0x10
[<ffffffff81601669>] system_call_fastpath+0x16/0x1b
[<ffffffffffffffff>] 0xffffffffffffffff
Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-14 16:16:34 -05:00
..
2013-10-24 23:34:54 -04:00
2013-09-23 16:53:52 -04:00
2013-11-11 00:42:07 -05:00
2013-08-15 14:37:46 -07:00
2013-10-18 13:56:07 -04:00
2013-10-23 17:03:47 +02:00
2013-11-08 09:03:10 -05:00
2013-11-14 16:16:34 -05:00
2013-11-07 19:28:59 -05:00
2013-10-19 19:12:11 -04:00
2013-10-19 19:12:11 -04:00
2013-11-14 02:39:53 -05:00
2013-11-05 21:52:27 -05:00
2013-10-14 11:29:31 +02:00
2013-07-12 16:09:14 -07:00
2013-09-03 20:57:49 -04:00
2013-09-30 21:52:53 -07:00
2013-11-03 23:20:14 -05:00
2013-11-07 19:11:13 -05:00
2013-11-14 02:39:53 -05:00
2013-11-11 01:25:28 -05:00
2013-08-15 14:37:46 -07:00
2013-11-13 17:40:34 +09:00
2013-07-14 19:36:58 -04:00
2013-09-17 12:17:10 +02:00
2013-10-23 16:49:34 -04:00
2013-09-23 16:52:45 -04:00
2013-09-03 22:34:47 -04:00
2013-11-08 09:03:10 -05:00
2013-10-30 17:18:46 -04:00
2013-10-19 19:36:19 -04:00
2013-11-13 17:40:34 +09:00
2013-10-10 00:08:07 -04:00
2013-09-06 14:43:48 -04:00
2013-10-07 14:18:44 +02:00
2013-11-04 16:25:04 -05:00
2013-08-29 16:43:29 -04:00
2013-08-15 14:37:46 -07:00
2013-10-19 19:45:35 -04:00
2013-10-28 15:05:25 +01:00
2013-10-19 19:12:11 -04:00
2013-11-09 14:53:37 -05:00
2013-11-04 13:48:30 -05:00
2013-11-13 17:40:34 +09:00
2013-11-07 18:30:11 -05:00
2013-10-19 18:50:15 -04:00
2013-08-16 15:37:26 -07:00
2013-10-19 19:12:11 -04:00
2013-11-08 09:03:10 -05:00
2013-10-29 17:35:17 -04:00
2013-11-07 19:28:58 -05:00
2013-10-03 16:05:14 -04:00
2013-11-03 23:20:14 -05:00
2013-11-03 23:20:14 -05:00
2013-10-03 16:05:14 -04:00
2013-10-07 15:57:56 -04:00