Mailinglist Archive: opensuse-bugs (4790 mails)

< Previous Next >
[Bug 1046989] null pointer dereference in 4.11.7-1 - block device cleanup on umount
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Mon, 03 Jul 2017 07:17:41 +0000
  • Message-id: <bug-1046989-21960-8ZceGKyaNP@http.bugzilla.suse.com/>
http://bugzilla.suse.com/show_bug.cgi?id=1046989
http://bugzilla.suse.com/show_bug.cgi?id=1046989#c1

Michal Kubeček <mkubecek@xxxxxxxx> changed:

What |Removed |Added
----------------------------------------------------------------------------
Summary|system rebooted while |null pointer dereference in
|reading e-mails |4.11.7-1 - block device
| |cleanup on umount

--- Comment #1 from Michal Kubeček <mkubecek@xxxxxxxx> ---
Extracting the stack trace here (and improving the subject) so that everyone
doesn't have to download the tarball to find out it's someone else's problem.

PID: 20253 TASK: ffff88aec28e4100 CPU: 3 COMMAND: "umount"
#0 [ffffb78503fb3b18] machine_kexec at ffffffff9b05abf8
#1 [ffffb78503fb3b68] __crash_kexec at ffffffff9b114520
#2 [ffffb78503fb3c20] crash_kexec at ffffffff9b1145b9
#3 [ffffb78503fb3c38] oops_end at ffffffff9b0304fe
#4 [ffffb78503fb3cb0] page_fault at ffffffff9b741df8
[exception RIP: kmem_cache_free+20]
RIP: ffffffff9b20e814 RSP: ffffb78503fb3d60 RFLAGS: 00010202
RAX: ffffffff9b572f80 RBX: ffff88acd1577c80 RCX: ffffdb96c834e7df
RDX: 0000000000000003 RSI: ffff88acd1577c80 RDI: 0000000000000000
RBP: 0000000000000000 R8: 0000000000000000 R9: 0000000000000002
R10: ffffb78503fb3c68 R11: 000000000000000f R12: ffff88aecc9201f8
R13: ffffffff9ba610c1 R14: ffff88aecc28d798 R15: 0000000000000000
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0000
#5 [ffffb78503fb3d78] free_request_size at ffffffff9b39a7ed
#6 [ffffb78503fb3d88] mempool_destroy at ffffffff9b1a7d01
#7 [ffffb78503fb3d98] blk_exit_rl at ffffffff9b39d7ce
#8 [ffffb78503fb3db0] blk_release_queue at ffffffff9b3a1247
#9 [ffffb78503fb3dc8] kobject_release at ffffffff9b3d78aa
#10 [ffffb78503fb3df0] disk_release at ffffffff9b3b1a59
#11 [ffffb78503fb3e08] device_release at ffffffff9b53d45d
#12 [ffffb78503fb3e28] kobject_release at ffffffff9b3d78aa
#13 [ffffb78503fb3e50] __blkdev_put at ffffffff9b26fb8f
#14 [ffffb78503fb3eb8] deactivate_locked_super at ffffffff9b2364e9
#15 [ffffb78503fb3ed0] cleanup_mnt at ffffffff9b254b2b
#16 [ffffb78503fb3ee0] task_work_run at ffffffff9b09fa30
#17 [ffffb78503fb3f18] exit_to_usermode_loop at ffffffff9b003292
#18 [ffffb78503fb3f40] syscall_return_slowpath at ffffffff9b003a64
#19 [ffffb78503fb3f50] entry_SYSCALL_64_fastpath at ffffffff9b740988
RIP: 00007f7e3ebcda67 RSP: 00007ffd69707538 RFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000557c4fa6f860 RCX: 00007f7e3ebcda67
RDX: 0000000000000023 RSI: 0000000000000002 RDI: 0000557c4fa6fa40
RBP: 0000557c4fa6fa40 R8: 000000000000fe04 R9: 0000000000000030
R10: 00007f7e3ec43260 R11: 0000000000000202 R12: 00007f7e3f0d11a4
R13: 0000000000000002 R14: 0000557c4fa747e0 R15: 00000000ffffffff
ORIG_RAX: 00000000000000a6 CS: 0033 SS: 002b

--
You are receiving this mail because:
You are on the CC list for the bug.
< Previous Next >
References