Bug 394501 - Kernel oops in SELinux/MLS/NetLabel
Kernel oops in SELinux/MLS/NetLabel
Status: CLOSED ERRATA
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
8
All Linux
low Severity high
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Assigned To: Kernel Maintainer List
Fedora Extras Quality Assurance
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Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2007-11-21 11:31 EST by Paul Moore
Modified: 2007-12-05 15:42 EST (History)
0 users

See Also:
Fixed In Version: 2.6.23.8-63.fc8
Doc Type: Bug Fix
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Last Closed: 2007-12-05 15:42:20 EST
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RHEL 7.3 requirements from Atomic Host:


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Description Paul Moore 2007-11-21 11:31:34 EST
Description of problem:
Recently there was a change to the SELinux MLS category bitmap implementation 
which introduced a bug in the mls_export_netlbl_cat() function which can cause 
systems using NetLabel to oops.  There is already a patch upstream which 
addresses this problem:
 
http://git.kernel.org/?p=linux/kernel/git/jmorris/selinux-2.6.git;a=commitdiff;h=6d2b685564ba417f4c6d80c3661f0dfee13fff85

Version-Release number of selected component (if applicable):
Problem exists with kernels 2.6.23-1.42.fc8 and 2.6.23-1.49.fc8 (possibly 
more)

How reproducible:
Erratic

Steps to Reproduce:
1. Receive CIPSOv4 labeled traffic
  
Actual results:
Kernel oops with the EIP pointing to ebitmap_netlbl_export+0x46 on x86.

Expected results:
No oops.

Additional info:
None.
Comment 1 Chuck Ebbert 2007-11-21 13:03:17 EST
Patch is already in CVS.
Comment 2 Paul Moore 2007-11-21 14:04:40 EST
Great, thanks.

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