android_kernel_xiaomi_sm8450/net
Patrick McHardy a56b8f8158 netfilter: nf_conntrack_h323: fix module unload crash
The H.245 helper is not registered/unregistered, but assigned to
connections manually from the Q.931 helper. This means on unload
existing expectations and connections using the helper are not
cleaned up, leading to the following oops on module unload:

CPU 0 Unable to handle kernel paging request at virtual address c00a6828, epc == 802224dc, ra == 801d4e7c
Oops[#1]:
Cpu 0
$ 0   : 00000000 00000000 00000004 c00a67f0
$ 4   : 802a5ad0 81657e00 00000000 00000000
$ 8   : 00000008 801461c8 00000000 80570050
$12   : 819b0280 819b04b0 00000006 00000000
$16   : 802a5a60 80000000 80b46000 80321010
$20   : 00000000 00000004 802a5ad0 00000001
$24   : 00000000 802257a8
$28   : 802a4000 802a59e8 00000004 801d4e7c
Hi    : 0000000b
Lo    : 00506320
epc   : 802224dc ip_conntrack_help+0x38/0x74     Tainted: P
ra    : 801d4e7c nf_iterate+0xbc/0x130
Status: 1000f403    KERNEL EXL IE
Cause : 00800008
BadVA : c00a6828
PrId  : 00019374
Modules linked in: ip_nat_pptp ip_conntrack_pptp ath_pktlog wlan_acl wlan_wep wlan_tkip wlan_ccmp wlan_xauth ath_pci ath_dev ath_dfs ath_rate_atheros wlan ath_hal ip_nat_tftp ip_conntrack_tftp ip_nat_ftp ip_conntrack_ftp pppoe ppp_async ppp_deflate ppp_mppe pppox ppp_generic slhc
Process swapper (pid: 0, threadinfo=802a4000, task=802a6000)
Stack : 801e7d98 00000004 802a5a60 80000000 801d4e7c 801d4e7c 802a5ad0 00000004
        00000000 00000000 801e7d98 00000000 00000004 802a5ad0 00000000 00000010
        801e7d98 80b46000 802a5a60 80320000 80000000 801d4f8c 802a5b00 00000002
        80063834 00000000 80b46000 802a5a60 801e7d98 80000000 802ba854 00000000
        81a02180 80b7e260 81a021b0 819b0000 819b0000 80570056 00000000 00000001
        ...
Call Trace:
 [<801e7d98>] ip_finish_output+0x0/0x23c
 [<801d4e7c>] nf_iterate+0xbc/0x130
 [<801d4e7c>] nf_iterate+0xbc/0x130
 [<801e7d98>] ip_finish_output+0x0/0x23c
 [<801e7d98>] ip_finish_output+0x0/0x23c
 [<801d4f8c>] nf_hook_slow+0x9c/0x1a4

One way to fix this would be to split helper cleanup from the unregistration
function and invoke it for the H.245 helper, but since ctnetlink needs to be
able to find the helper for synchonization purposes, a better fix is to
register it normally and make sure its not assigned to connections during
helper lookup. The missing l3num initialization is enough for this, this
patch changes it to use AF_UNSPEC to make it more explicit though.

Reported-by: liannan <liannan@twsz.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-17 15:52:32 -07:00
..
9p 9p: fix error path during early mount 2008-05-14 19:23:27 -05:00
802 [TR] net/802/tr.c: sysctl_tr_rif_timeout static 2008-01-31 19:28:31 -08:00
8021q vlan: Use bitmask of feature flags instead of seperate feature bits 2008-05-23 00:27:50 -07:00
appletalk [NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS. 2008-03-26 04:39:53 +09:00
atm atm: [br2864] fix routed vcmux support 2008-06-16 17:18:18 -07:00
ax25 ax25: Fix NULL pointer dereference and lockup. 2008-06-03 14:53:46 -07:00
bluetooth bluetooth: rfcomm_dev_state_change deadlock fix 2008-06-03 14:27:17 -07:00
bridge bridge: Consolidate error paths in br_add_bridge(). 2008-05-04 17:58:07 -07:00
can Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-05-08 19:03:26 -07:00
core net: Fix test for VLAN TX checksum offload capability 2008-06-16 17:02:28 -07:00
dccp dccp: Bug in initial acknowledgment number assignment 2008-06-11 11:19:10 +01:00
decnet ip: Use inline function dst_metric() instead of direct access to dst->metric[] 2008-05-04 22:14:42 -07:00
econet net: Allow netdevices to specify needed head/tailroom 2008-05-12 20:48:31 -07:00
ethernet [NET]: Return more appropriate error from eth_validate_addr(). 2008-04-13 22:45:40 -07:00
ieee80211 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2008-04-14 02:30:23 -07:00
ipv4 netfilter: nf_nat: fix RCU races 2008-06-17 15:51:47 -07:00
ipv6 ipv6 sit: Avoid extra need for compat layer in PRL management. 2008-06-16 16:48:20 -07:00
ipx [NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS. 2008-03-26 04:39:53 +09:00
irda irda: Sock leak on error path in irda_create. 2008-06-03 15:18:36 -07:00
iucv iucv: Delay bus registration until core is ready. 2008-04-10 02:12:45 -07:00
key ipsec: pfkey should ignore events when no listeners 2008-06-10 14:25:34 -07:00
lapb [LAPB] net/lapb/lapb_iface.c: use LIST_HEAD instead of LIST_HEAD_INIT 2008-01-28 14:56:52 -08:00
llc llc: Fix double accounting of received packets 2008-05-30 02:57:29 -07:00
mac80211 mac80211: add missing new line in debug print HT_DEBUG 2008-06-13 16:14:53 -04:00
netfilter netfilter: nf_conntrack_h323: fix module unload crash 2008-06-17 15:52:32 -07:00
netlabel Audit: collect sessionid in netlink messages 2008-04-28 06:18:03 -04:00
netlink netlink: Improve returned error codes 2008-06-03 16:36:54 -07:00
netrom [NET] NETNS: Omit sock->sk_net without CONFIG_NET_NS. 2008-03-26 04:39:55 +09:00
packet net: Allow netdevices to specify needed head/tailroom 2008-05-12 20:48:31 -07:00
rfkill rfkill: Fix device type check when toggling states 2008-04-15 15:04:35 -04:00
rose rose: Wrong list_lock argument in rose_node seqops 2008-05-02 17:03:22 -07:00
rxrpc net: Add missing braces to multi-statement if()s 2008-05-02 16:20:10 -07:00
sched pkt_sched: Change HTB_HYSTERESIS to a runtime parameter htb_hysteresis. 2008-06-16 16:39:32 -07:00
sctp sctp: Correclty set changeover_active for SFR-CACC 2008-06-16 17:00:29 -07:00
sunrpc Merge branch 'for-2.6.26' of git://linux-nfs.org/~bfields/linux 2008-05-20 19:30:54 -07:00
tipc tipc: Increase buffer header to support worst-case device 2008-05-08 21:38:24 -07:00
unix Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-04-24 08:40:34 -07:00
wanrouter [WANROUTER]: Use proc_create() to setup ->proc_fops first 2008-02-28 14:15:56 -08:00
wireless netlink: Improve returned error codes 2008-06-03 16:36:54 -07:00
x25 [NET] NETNS: Omit sock->sk_net without CONFIG_NET_NS. 2008-03-26 04:39:55 +09:00
xfrm xfrm: xfrm_algo: correct usage of RIPEMD-160 2008-06-04 12:04:55 -07:00
compat.c net: Add compat support for getsockopt (MCAST_MSFILTER) 2008-04-29 03:23:22 -07:00
Kconfig [IPV4]: Fix size description of CONFIG_INET. 2008-03-04 15:18:22 +09:00
Makefile [CAN]: Add PF_CAN core module 2008-01-28 14:54:10 -08:00
nonet.c [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
socket.c net: Unexport move_addr_to_{kernel,user} 2008-04-23 03:37:49 -07:00
sysctl_net.c net: fix returning void-valued expression warnings 2008-05-01 02:47:38 -07:00
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