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Alexey Dobriyan 891e6a9312 [ROSE]: Fix rose.ko oops on unload 
Commit a3d384029a aka
"[AX.25]: Fix unchecked rose_add_loopback_neigh uses"
transformed rose_loopback_neigh var into statically allocated one.
However, on unload it will be kfree's which can't work.

Steps to reproduce:

	modprobe rose
	rmmod rose

BUG: unable to handle kernel NULL pointer dereference at virtual address 00000008
 printing eip:
c014c664
*pde = 00000000
Oops: 0000 [#1]
PREEMPT DEBUG_PAGEALLOC
Modules linked in: rose ax25 fan ufs loop usbhid rtc snd_intel8x0 snd_ac97_codec ehci_hcd ac97_bus uhci_hcd thermal usbcore button processor evdev sr_mod cdrom
CPU:    0
EIP:    0060:[<c014c664>]    Not tainted VLI
EFLAGS: 00210086   (2.6.23-rc9 #3)
EIP is at kfree+0x48/0xa1
eax: 00000556   ebx: c1734aa0   ecx: f6a5e000   edx: f7082000
esi: 00000000   edi: f9a55d20   ebp: 00200287   esp: f6a5ef28
ds: 007b   es: 007b   fs: 0000  gs: 0033  ss: 0068
Process rmmod (pid: 1823, ti=f6a5e000 task=f7082000 task.ti=f6a5e000)
Stack: f9a55d20 f9a5200c 00000000 00000000 00000000 f6a5e000 f9a5200c f9a55a00 
       00000000 bf818cf0 f9a51f3f f9a55a00 00000000 c0132c60 65736f72 00000000 
       f69f9630 f69f9528 c014244a f6a4e900 00200246 f7082000 c01025e6 00000000 
Call Trace:
 [<f9a5200c>] rose_rt_free+0x1d/0x49 [rose]
 [<f9a5200c>] rose_rt_free+0x1d/0x49 [rose]
 [<f9a51f3f>] rose_exit+0x4c/0xd5 [rose]
 [<c0132c60>] sys_delete_module+0x15e/0x186
 [<c014244a>] remove_vma+0x40/0x45
 [<c01025e6>] sysenter_past_esp+0x8f/0x99
 [<c012bacf>] trace_hardirqs_on+0x118/0x13b
 [<c01025b6>] sysenter_past_esp+0x5f/0x99
 =======================
Code: 05 03 1d 80 db 5b c0 8b 03 25 00 40 02 00 3d 00 40 02 00 75 03 8b 5b 0c 8b 73 10 8b 44 24 18 89 44 24 04 9c 5d fa e8 77 df fd ff <8b> 56 08 89 f8 e8 84 f4 fd ff e8 bd 32 06 00 3b 5c 86 60 75 0f 
EIP: [<c014c664>] kfree+0x48/0xa1 SS:ESP 0068:f6a5ef28

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2007-10-07 23:44:17 -07:00
..
9p 9p: fix bad error path in conversion routines 2007-08-23 10:25:05 -05:00
802 [SNAP]: Check packet length before reading 2007-08-21 20:58:13 -07:00
8021q [VLAN]: Fix net_device leak. 2007-09-16 16:43:04 -07:00
appletalk [NET]: Make all initialized struct seq_operations const. 2007-07-10 23:07:31 -07:00
atm [ATM]: Clean up duplicate includes in net/atm/ 2007-08-13 22:52:01 -07:00
ax25 [AX25]: don't free pointers to statically allocated data 2007-08-14 17:24:05 -07:00
bluetooth [BLUETOOTH]: Fix non-COMPAT build of hci_sock.c 2007-09-12 14:10:58 +02:00
bridge [NET] skbuff: Add skb_cow_head 2007-09-16 16:21:16 -07:00
core [PKTGEN]: srcmac fix 2007-09-16 14:52:15 -07:00
dccp [DCCP]: Allocation in atomic context 2007-08-21 20:58:06 -07:00
decnet [DECNET]: Fix interface address listing regression. 2007-09-11 10:45:15 +02:00
econet [ECONET]: remove econet_packet_type on unload 2007-08-14 17:25:20 -07:00
ethernet [ETH]: Validate address in eth_mac_addr 2007-07-11 19:41:18 -07:00
ieee80211 Merge branch 'fixes-jgarzik' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into upstream-fixes 2007-10-03 13:39:16 -04:00
ipv4 [TCP]: Fix fastpath_cnt_hint when GSO skb is partially ACKed 2007-10-07 23:43:10 -07:00
ipv6 [TCP]: Fix MD5 signature handling on big-endian. 2007-09-28 15:18:35 -07:00
ipx [NET]: Make all initialized struct seq_operations const. 2007-07-10 23:07:31 -07:00
irda [IRDA] irda_nl_get_mode: always results in failure 2007-08-21 21:23:39 -07:00
iucv [S390] Convert to smp_call_function_single. 2007-07-27 12:29:17 +02:00
key [PF_KEY]: Fix ipsec not working in 2.6.23-rc1-git10 2007-08-02 19:42:29 -07:00
lapb [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
llc [NET]: Make all initialized struct seq_operations const. 2007-07-10 23:07:31 -07:00
mac80211 [PATCH] mac80211: fix initialisation when built-in 2007-09-25 22:55:45 -07:00
netfilter [NETFILTER]: nfnetlink_log: fix sending of multipart messages 2007-09-20 12:13:52 -07:00
netlabel [NetLabel]: add missing rcu_dereference() calls in the LSM domain mapping hash table 2007-08-07 17:53:10 -07:00
netlink [GENETLINK]: Correctly report errors while registering a multicast group 2007-07-24 15:34:53 -07:00
netrom [NET] NETROM: Fix whitespace errors. 2007-07-19 10:44:32 +09:00
packet [NET] PACKET: Fix whitespace errors. 2007-07-19 10:44:35 +09:00
rfkill [NET] RFKILL: Fix whitespace errors. 2007-07-19 10:44:38 +09:00
rose [ROSE]: Fix rose.ko oops on unload 2007-10-07 23:44:17 -07:00
rxrpc net/* misc endianness annotations 2007-07-26 11:11:56 -07:00
sched [SFQ]: Remove artificial limitation for queue limit. 2007-10-01 21:01:23 -07:00
sctp fix sctp_del_bind_addr() last argument type 2007-09-26 09:22:04 -07:00
sunrpc rpc: fix garbage in printk in svc_tcp_accept() 2007-09-20 13:15:57 -07:00
tipc [TIPC]: Clean up duplicate includes in net/tipc/ 2007-08-13 22:52:07 -07:00
unix [AF_UNIX]: Make code static. 2007-07-31 02:28:27 -07:00
wanrouter [NET]: Removal of duplicated include net/wanrouter/wanmain.c 2007-08-02 19:42:22 -07:00
wireless [PATCH] cfg80211: fix initialisation if built-in 2007-09-25 22:55:44 -07:00
x25 [NET]: Make all initialized struct seq_operations const. 2007-07-10 23:07:31 -07:00
xfrm [XFRM]: Clean up duplicate includes in net/xfrm/ 2007-08-13 22:52:08 -07:00
Kconfig 9p: Reorganization of 9p file system code 2007-07-14 15:13:40 -05:00
Makefile 9p: Reorganization of 9p file system code 2007-07-14 15:13:40 -05:00
TUNABLE Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
compat.c O_CLOEXEC for SCM_RIGHTS 2007-07-16 09:05:45 -07:00
nonet.c [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
socket.c [NET]: Zero length write() on socket should not simply return 0. 2007-09-27 13:52:00 -07:00
sysctl_net.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00