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Bug 1083213 - (CVE-2014-2673) CVE-2014-2673 kernel: powerpc: tm: crash when forking inside a transaction
CVE-2014-2673 kernel: powerpc: tm: crash when forking inside a transaction
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
: ---
: ---
Assigned To: Red Hat Product Security
impact=moderate,public=20140307,repor...
: Security
Depends On: 1083214 1083215 1083217
Blocks: 1083261
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Reported: 2014-04-01 13:23 EDT by Petr Matousek
Modified: 2015-07-31 03:17 EDT (History)
32 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
A flaw was found in the way the Linux kernel performed forking inside of a transaction. A local, unprivileged user on a PowerPC system that supports transactional memory could use this flaw to crash the system.
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Clone Of:
Environment:
Last Closed: 2014-08-06 13:40:04 EDT
Type: ---
Regression: ---
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Documentation: ---
CRM:
Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2014:1023 normal SHIPPED_LIVE Important: kernel security and bug fix update 2014-08-06 17:10:29 EDT

  None (edit)
Description Petr Matousek 2014-04-01 13:23:11 EDT 
A flaw was found in the way forking inside a transaction was handled in the Linux kernel.

Unprivileged local user on a POWERPC system supporting transactional memory could use this flaw to crash the system.

Upstream fix:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=621b5060e823301d0cba4cb52a7ee3491922d291

References:
http://seclists.org/oss-sec/2014/q1/701
Comment 2 Petr Matousek 2014-04-01 13:26:50 EDT 
Statement:

This issue does not affect Red Hat Enterprise Linux 5 and 6 because we do not provide support for Transactional Memory on Power PC architecture.

This issue does not affect Red Hat Enterprise MRG 2 because we do not support Power PC architecture.
Comment 3 Petr Matousek 2014-04-01 13:27:46 EDT 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1083217]
Comment 4 Martin Prpič 2014-08-05 08:08:38 EDT 
IssueDescription:

A flaw was found in the way the Linux kernel performed forking inside of a transaction. A local, unprivileged user on a PowerPC system that supports transactional memory could use this flaw to crash the system.
Comment 5 errata-xmlrpc 2014-08-06 13:10:42 EDT 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 7

Via RHSA-2014:1023 https://rhn.redhat.com/errata/RHSA-2014-1023.html
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