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OpenCloudOS-Kernel
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Herbert Xu 4906f9985e bridge: Fix LRO crash with tun 
> Kernel BUG at drivers/net/tun.c:444
> invalid opcode: 0000 [1] SMP
> last sysfs file: /class/net/lo/ifindex
> CPU 0
> Modules linked in: tun ipt_MASQUERADE iptable_nat ip_nat xt_state ip_conntrack
> nfnetlink ipt_REJECT xt_tcpudp iptable_filter d
> Pid: 6912, comm: qemu-kvm Tainted: G      2.6.18-128.el5 #1
> RIP: 0010:[<ffffffff886f57b0>]  [<ffffffff886f57b0>]
> :tun:tun_chr_readv+0x2b1/0x3a6
> RSP: 0018:ffff8102202c5e48  EFLAGS: 00010246
> RAX: 0000000000000000 RBX: ffff8102202c5e98 RCX: 0000000004010000
> RDX: ffff810227063680 RSI: ffff8102202c5e9e RDI: ffff8102202c5e92
> RBP: 0000000000010ff6 R08: 0000000000000000 R09: 0000000000000001
> R10: ffff8102202c5e94 R11: 0000000000000202 R12: ffff8102275357c0
> R13: ffff81022755e500 R14: 0000000000000000 R15: ffff8102202c5ef8
> FS:  00002ae4398db980(0000) GS:ffffffff803ac000(0000) knlGS:0000000000000000
> CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> CR2: 00002ae4ab514000 CR3: 0000000221344000 CR4: 00000000000026e0
> Process qemu-kvm (pid: 6912, threadinfo ffff8102202c4000, task
> ffff81022e58d820)
> Stack:  00000000498735cb ffff810229d1a3c0 0000000000000000 ffff81022e58d820
>  ffffffff8008a461 ffff81022755e528 ffff81022755e528 ffffffff8009f925
>  000005ea05ea0000 ffff8102209d0000 00001051143e1600 ffffffff8003c00e
> Call Trace:
>  [<ffffffff8008a461>] default_wake_function+0x0/0xe
>  [<ffffffff8009f925>] enqueue_hrtimer+0x55/0x70
>  [<ffffffff8003c00e>] hrtimer_start+0xbc/0xce
>  [<ffffffff886f58bf>] :tun:tun_chr_read+0x1a/0x1f
>  [<ffffffff8000b3f3>] vfs_read+0xcb/0x171
>  [<ffffffff800117d4>] sys_read+0x45/0x6e
>  [<ffffffff8005d116>] system_call+0x7e/0x83
>
>
> Code: 0f 0b 68 40 62 6f 88 c2 bc 01 f6 42 0a 08 74 0c 80 4c 24 41
> RIP  [<ffffffff886f57b0>] :tun:tun_chr_readv+0x2b1/0x3a6
>  RSP <ffff8102202c5e48>
>  <0>Kernel panic - not syncing: Fatal exception

This crashed when an LRO packet generated by bnx2x reached a
tun device through the bridge.  We're supposed to drop it at
the bridge.  However, because the check was placed in br_forward
instead of __br_forward, it's only effective if we are sending
the packet through a single port.

This patch fixes it by moving the check into __br_forward.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2009-02-09 15:07:18 -08:00
..
9p 9p: fix endian issues [attempt 3] 2009-02-06 22:07:41 -08:00
802 hippi: convert driver to net_device_ops 2008-11-20 20:32:15 -08:00
8021q vlan: Export symbols as non GPL symbols. 2009-01-26 12:37:53 -08:00
appletalk appletalk: convert aarp to net_device_ops 2009-01-07 17:21:44 -08:00
atm netdevice: Kill netdev->priv 2008-12-08 01:14:16 -08:00
ax25 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2008-12-28 12:49:40 -08:00
bluetooth bluetooth: driver API update 2009-01-07 17:23:17 -08:00
bridge bridge: Fix LRO crash with tun 2009-02-09 15:07:18 -08:00
can can: fix slowpath issue in hrtimer callback function 2009-01-14 21:06:55 -08:00
core net_dma: call dmaengine_get only if NET_DMA enabled 2009-02-06 22:06:43 -08:00
dcb DCB: fix kfree(skb) 2009-01-04 17:29:21 -08:00
dccp dccp ccid-3: Fix RFC reference 2009-01-11 00:17:22 -08:00
decnet net: Make static 2008-12-10 15:18:31 -08:00
dsa dsa: convert to net_device_ops (v2) 2009-01-06 16:45:26 -08:00
econet netns: Use net_eq() to compare net-namespaces for optimization. 2008-07-19 22:34:43 -07:00
ethernet eth: Declare an optimized compare_ether_addr_64bits() function 2008-11-23 23:24:32 -08:00
ipv4 udp: Fix potential wrong ip_hdr(skb) pointers 2009-02-06 01:59:12 -08:00
ipv6 IPv6: fix to set device name when new IPv6 over IPv6 tunnel device is created. 2009-02-09 15:01:19 -08:00
ipx net: '&' redux 2008-11-03 18:21:05 -08:00
irda tty: Fix an ircomm warning and note another bug 2009-01-02 10:19:43 -08:00
iucv s390: remove s390_root_dev_*() 2009-01-06 10:44:34 -08:00
key af_key: initialize xfrm encap_oa 2009-01-25 20:49:14 -08:00
lapb
…
llc net: remove redundant argument comments 2008-11-21 17:15:03 -08:00
mac80211 mac80211: fix slot time debug message 2009-01-22 13:55:01 -05:00
netfilter netfilter: xt_sctp: sctp chunk mapping doesn't work 2009-02-09 14:34:56 -08:00
netlabel netlabel: Update kernel configuration API 2008-12-31 12:54:11 -05:00
netlink genetlink: export genl_unregister_mc_group() 2009-01-07 10:00:17 -08:00
netrom Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2008-12-28 12:49:40 -08:00
packet net: packet socket packet_lookup_frame fix 2009-02-01 01:53:29 -08:00
phonet phonet: update to net_device_ops 2009-01-07 17:24:34 -08:00
rfkill net/rfkill/rfkill.c: fix unused rfkill_led_trigger() warning 2009-01-04 17:11:24 -08:00
rose Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2008-12-28 12:49:40 -08:00
rxrpc RxRPC: Fix a potential NULL dereference 2009-02-06 21:50:52 -08:00
sched pkt_sched: sch_htb: Break all htb_do_events() after 2 jiffies 2009-01-12 21:54:40 -08:00
sctp sctp: Fix another socket race during accept/peeloff 2009-01-22 14:53:23 -08:00
sunrpc sunrpc: fix rdma dependencies 2009-02-03 15:20:13 -08:00
tipc net/tipc/bcast.h: use ARRAY_SIZE 2009-01-11 00:06:33 -08:00
unix introduce new LSM hooks where vfsmount is available. 2008-12-31 18:07:37 -05:00
wanrouter netdevice wanrouter: Convert directly reference of netdev->priv 2008-11-20 04:26:21 -08:00
wimax wimax: fix build issue when debugfs is disabled 2009-01-29 17:18:31 -08:00
wireless cfg80211: print correct intersected regulatory domain 2009-01-29 15:46:43 -05:00
x25 net: '&' redux 2008-11-03 18:21:05 -08:00
xfrm Revert "xfrm: For 32/64 compatability wrt. xfrm_usersa_info" 2009-01-20 09:49:51 -08:00
Kconfig net: Move config NET_NS to from net/Kconfig to init/Kconfig 2009-01-26 12:25:55 -08:00
Makefile wimax: Makefile, Kconfig and docbook linkage for the stack 2009-01-07 10:00:17 -08:00
TUNABLE
…
compat.c reintroduce accept4 2008-11-19 18:49:57 -08:00
nonet.c
…
socket.c [CVE-2009-0029] System call wrappers part 22 2009-01-14 14:15:27 +01:00
sysctl_net.c missing bits of net-namespace / sysctl 2008-07-27 09:45:34 -07:00