Kernel Oops - unable to handle kernel NULL pointer dereference at (null); Call Trace: [<ffffffff810fb39b>] ? audit_compare_dname_path+0x2b/0xa0
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Trusty |
Fix Released
|
Critical
|
Chris J Arges | ||
Utopic |
Fix Released
|
Critical
|
Chris J Arges |
Bug Description
[Impact]
Ubuntu VMWare instances running 3.13.0-51 will crash with the following backtrace:
[ 12.357276] BUG: unable to handle kernel NULL pointer dereference at (null)
[ 12.357886] IP: [<ffffffff8136c
[ 12.358457] PGD 230fe9067 PUD 230d5c067 PMD 0
[ 12.359034] Oops: 0000 [#1] SMP
[ 12.359590] Modules linked in: tcp_diag inet_diag vmw_vsock_
[ 12.364773] CPU: 2 PID: 1718 Comm: fail2ban-server Not tainted 3.13.0-51-generic #84-Ubuntu
[ 12.365587] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 04/14/2014
[ 12.367276] task: ffff880230fc3000 ti: ffff8802308c4000 task.ti: ffff8802308c4000
[ 12.368159] RIP: 0010:[<
[ 12.369073] RSP: 0018:ffff880230
[ 12.369963] RAX: 000000000000000d RBX: 000000000000000d RCX: 0000000000002df0
[ 12.370973] RDX: 0000000000000012 RSI: 0000000000000000 RDI: 0000000000000000
[ 12.372005] RBP: ffff8802308c5d90 R08: ffff8800b9218648 R09: ffff8802308c5d60
[ 12.372988] R10: 0000000000000002 R11: ffff88023082e180 R12: 0000000000000012
[ 12.373901] R13: 0000000000000000 R14: ffff880231f1b3f8 R15: ffff8800b9218460
[ 12.374827] FS: 00007f196f84c74
[ 12.375752] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 12.376667] CR2: 0000000000000000 CR3: 0000000230872000 CR4: 00000000000407e0
[ 12.377684] Stack:
[ 12.378612] ffffffff810fb39b 0000000000000000 0000000000000004 ffff88022ff74838
[ 12.379559] ffff8800b9218400 ffff8800b9218460 ffff8802308c5df8 ffffffff810fdb36
[ 12.380516] ffffffff811d56e0 000000042ff74838 ffff880231f1b3c0 ffff88022febecf8
[ 12.381506] Call Trace:
[ 12.382630] [<ffffffff810fb
[ 12.383784] [<ffffffff810fd
[ 12.384912] [<ffffffff811d5
[ 12.386013] [<ffffffff811ca
[ 12.387145] [<ffffffff816bf
[ 12.388207] [<ffffffff810ff
[ 12.389250] [<ffffffff8160d
[ 12.390297] [<ffffffff8172e
[ 12.391303] [<ffffffff8160e
[ 12.392426] [<ffffffff81733
[ 12.393581] Code: 89 f8 48 89 e5 f6 82 40 c7 84 81 20 74 15 0f 1f 44 00 00 48 83 c0 01 0f b6 10 f6 82 40 c7 84 81 20 75 f0 5d c3 66 0f 1f 44 00 00 <80> 3f 00 55 48 89 e5 74 15 48 89 f8 0f 1f 40 00 48 83 c0 01 80
[ 12.396831] RIP [<ffffffff8136c
[ 12.397812] RSP <ffff8802308c5d60>
[ 12.398769] CR2: 0000000000000000
[ 12.399743] ---[ end trace 2c5a33d31a03347e ]---
We've also seen this on our precise machines that are running the backported trusty kernel.
When reverting to kernel 3.13.0-49 this no longer occurs.
[Test Case]
1) Run an Ubuntu VMWare instance with the affected kernel.
apt-get install auditd
echo "-w /etc/test" >>/etc/
/etc/init.d/auditd restart
apt-get install linux-headers-
reboot
attempt to login or ssh into the host - you'll get a similar stacktrace.
[Fix]
commit fcf22d8267ad260
--
uname -a:
Linux search-2 3.13.0-51-generic #84-Ubuntu SMP Wed Apr 15 12:08:34 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
cat /proc/version_
Ubuntu 3.13.0-
Changed in linux (Ubuntu Utopic): | |
assignee: | nobody → Chris J Arges (arges) |
Changed in linux (Ubuntu Trusty): | |
status: | Confirmed → In Progress |
importance: | Undecided → Medium |
Changed in linux (Ubuntu Utopic): | |
status: | New → In Progress |
importance: | Undecided → Medium |
Changed in linux (Ubuntu Trusty): | |
importance: | Medium → Critical |
Changed in linux (Ubuntu Utopic): | |
importance: | Medium → Critical |
description: | updated |
tags: | added: regression-update |
description: | updated |
Changed in linux (Ubuntu): | |
status: | Confirmed → Fix Released |
This change was made by a bot.