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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
..
acpi ACPI: CONFIG_ACPI_SLEEP=n power off regression in 2.6.23-rc8 (NOT in rc7) 2007-09-25 17:58:52 -04:00
asm-alpha Fix Alpha O_CLOEXEC definition 2007-08-09 08:39:22 -07:00
asm-arm Merge branch 'omap-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 2007-08-25 12:38:47 +01:00
asm-avr32 [AVR32] Define mmiowb() 2007-08-15 16:36:56 +02:00
asm-blackfin Blackfin arch: fix PORT_J BUG for BF537/6 EMAC driver reported by Kalle Pokki <kalle.pokki@iki.fi> 2007-10-04 00:36:18 +08:00
asm-cris remove unused TIF_NOTIFY_RESUME flag 2007-07-31 15:39:38 -07:00
asm-frv FRV: connect up fallocate 2007-08-11 15:47:40 -07:00
asm-generic Define termios_1 functions for powerpc, s390, avr32 and frv 2007-09-12 09:08:05 -07:00
asm-h8300 Binfmt_flat: Add minimum support for the Blackfin relocations 2007-10-03 23:41:43 +08:00
asm-i386 i386: remove bogus comment about memory barrier 2007-09-29 09:13:59 -07:00
asm-ia64 [IA64] Cleanup HPSIM code (was: Re: Enable early console for Ski simulator) 2007-09-01 02:52:25 -07:00
asm-m32r Binfmt_flat: Add minimum support for the Blackfin relocations 2007-10-03 23:41:43 +08:00
asm-m68k m68k(nommu): add missing syscalls 2007-09-11 17:21:20 -07:00
asm-m68knommu Binfmt_flat: Add minimum support for the Blackfin relocations 2007-10-03 23:41:43 +08:00
asm-mips [MIPS] Terminally fix local_{dec,sub}_if_positive 2007-10-03 14:30:52 +01:00
asm-parisc [PARISC] Add dummy isa_(bus|virt)_to_(virt|bus) inlines 2007-08-27 00:29:22 -04:00
asm-powerpc [POWERPC] Fix timekeeping on PowerPC 601 2007-09-19 15:26:34 +10:00
asm-ppc [WATCHDOG] mv64x60_wdt: Add arch/powerpc platform support 2007-07-24 21:16:02 +00:00
asm-s390 [S390] Change atomic_read/set to inline functions with barrier semantics. 2007-08-22 13:51:49 +02:00
asm-sh Binfmt_flat: Add minimum support for the Blackfin relocations 2007-10-03 23:41:43 +08:00
asm-sh64 sh64: Add missing dma_sync_single_for_*(). 2007-08-10 02:47:31 +09:00
asm-sparc [SPARC32]: Make flush_tlb_kernel_range() an inline function. 2007-08-26 18:49:12 -07:00
asm-sparc64 [SPARC64]: Fix lockdep, particularly on SMP. 2007-09-16 11:51:15 -07:00
asm-um UML: Fix ELF_CORE_COPY_REGS build botch 2007-09-10 18:58:05 -07:00
asm-v850 Binfmt_flat: Add minimum support for the Blackfin relocations 2007-10-03 23:41:43 +08:00
asm-x86_64 Remove unnecessary cast in prefetch() 2007-10-05 08:04:35 -07:00
asm-xtensa [patch 1/2] Xtensa: enable arbitary tty speed setting ioctls 2007-08-27 13:54:25 -07:00
crypto
…
keys
…
linux Don't do load-average calculations at even 5-second intervals 2007-10-07 16:23:13 -07:00
math-emu Fix <math-emu/soft-fp.h> tpyo 2007-08-18 17:15:17 -07:00
media V4L/DVB (6220a): fix build error for et61x251 driver 2007-09-14 13:39:12 -03:00
mtd
…
net [ROSE]: Fix rose.ko oops on unload 2007-10-07 23:44:17 -07:00
pcmcia
…
rdma IB: Move the macro IB_UMEM_MAX_PAGE_CHUNK() to umem.c 2007-08-03 10:45:18 -07:00
rxrpc
…
scsi [SCSI] libiscsi: sync up iscsi and scsi eh's access to the connection 2007-08-15 13:09:21 -05:00
sound [ALSA] version 1.0.14 2007-07-20 11:13:35 +02:00
video remove tx3912fb 2007-07-31 15:39:41 -07:00
xen xen: xen/page.h compile fix 2007-07-26 11:35:16 -07:00
Kbuild
…