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
..
af_rose.c	[NET] ROSE: Fix whitespace errors.	2007-07-19 10:44:40 +09:00
Makefile	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00
rose_dev.c	[PATCH] remove many unneeded #includes of sched.h	2007-02-14 08:09:54 -08:00
rose_in.c	[PATCH] remove many unneeded #includes of sched.h	2007-02-14 08:09:54 -08:00
rose_link.c	[ROSE]: Eleminate HZ from ROSE kernel interfaces	2006-05-03 23:28:20 -07:00
rose_loopback.c	[ROSE]: Fix rose.ko oops on unload	2007-10-07 23:44:17 -07:00
rose_out.c	[PATCH] remove many unneeded #includes of sched.h	2007-02-14 08:09:54 -08:00
rose_route.c	[ROSE]: Fix rose.ko oops on unload	2007-10-07 23:44:17 -07:00
rose_subr.c	[PATCH] remove many unneeded #includes of sched.h	2007-02-14 08:09:54 -08:00
rose_timer.c	[ROSE]: rose_heartbeat_expiry() locking fix	2005-10-31 16:41:45 -02:00
sysctl_net_rose.c	[PATCH] sysctl: remove insert_at_head from register_sysctl	2007-02-14 08:09:59 -08:00