Bug 433339

Summary: WARNING: at kernel/auditsc.c:1089 audit_log_exit+0x70a/0xb7c() (Not tainted)
Product: [Fedora] Fedora Reporter: Daniel Walsh <dwalsh>
Component: kernelAssignee: Eric Paris <eparis>
Status: CLOSED UPSTREAM QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: low Docs Contact:
Priority: low    
Version: rawhideCC: aviro, davej, eparis, sgrubb, vonbrand
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
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Story Points: ---
Clone Of: Environment:
Last Closed: 2008-02-19 15:05:39 UTC Type: ---
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
dmesg
none
/var/log/audit/audit.log
none
/var/log/messages none

Description Daniel Walsh 2008-02-18 19:12:50 UTC
Description of problem:

kernel-2.6.25-0.40.rc1.git2.fc9.x86_64

When I boot rawhide with this kernel, the machine quickly goes to 100 CPU.

Lots of oopses

Comment 1 Daniel Walsh 2008-02-18 19:12:50 UTC
Created attachment 295193 [details]
dmesg

Comment 2 Daniel Walsh 2008-02-18 19:13:37 UTC
Created attachment 295194 [details]
/var/log/audit/audit.log

Comment 3 Daniel Walsh 2008-02-18 19:13:57 UTC
Created attachment 295195 [details]
/var/log/messages

Comment 4 Eric Paris 2008-02-18 19:21:31 UTC
looks like I must have screwed something up in execve audit logging....

Comment 5 Jeff Moyer 2008-02-18 19:39:36 UTC
Looks like a duplicate of bz #433125.

Comment 6 Eric Paris 2008-02-18 19:50:05 UTC
i'll comment in 433125, but I don't see how this issue could cause programs to
fail.  execve logging is failing, but we aren't terminating the process or doing
anything other than wasting huge amounts of cpu time/log space.

Comment 7 Eric Paris 2008-02-18 20:27:21 UTC
dwalsh told me on irc:

auditctl -l
LIST_RULES: exit,always watch=/etc/shadow perm=wa key=auth

also I'm not seeing this on my latest git pulls from linus, so maybe its
something  fedora specific?

Comment 8 Eric Paris 2008-02-18 20:49:15 UTC
I'm obviously missing something as on my test machine:

[root@dhcp231-146 ~]# uname -a
Linux dhcp231-146.rdu.redhat.com 2.6.25-0.40.rc1.git2.fc9 #1 SMP Wed Feb 13
17:17:48 EST 2008 x86_64 x86_64 x86_64 GNU/Linux
[root@dhcp231-146 ~]# auditctl -l
LIST_RULES: exit,always watch=/etc/shadow perm=rw key=auth

and I've got no problems.  What do you actually have in /etc/audit/audit.rules?
 Maybe there is some rule that isn't showing up out of -l from the kernel somehow?

Comment 9 Eric Paris 2008-02-18 22:05:39 UTC
ok, its finally happening on my rawhide box with both fedora and stock git
kernels from a couple hours ago.

fully up2date rawhide
setenforce 0
/etc/audit/audit.rules contains
-w /etc/shadow -p wa -k auth

reboot and watch it....

Comment 10 Eric Paris 2008-02-18 23:26:40 UTC
https://www.redhat.com/archives/linux-audit/2008-February/msg00010.html

appears to fix it for me.  until this heads upstream and back down we probably
shouldn't be using audit rules   :(

audit rule + avc = boom.

Comment 11 Horst H. von Brand 2008-02-25 12:27:57 UTC
The patch listed at 10 is now in the upstream kernel.