Bug 1198503 (CVE-2014-8172) - CVE-2014-8172 kernel: soft lockup on aio
Summary: CVE-2014-8172 kernel: soft lockup on aio
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2014-8172
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1095072 1112805 1198505
Blocks: 1095320 1198504
TreeView+ depends on / blocked
 
Reported: 2015-03-04 09:51 UTC by Petr Matousek
Modified: 2021-02-17 05:35 UTC (History)
31 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
It was found that due to excessive files_lock locking, a soft lockup could be triggered in the Linux kernel when performing asynchronous I/O operations. A local, unprivileged user could use this flaw to crash the system.
Clone Of:
Environment:
Last Closed: 2015-03-30 08:13:04 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2015:0290 0 normal SHIPPED_LIVE Important: kernel security, bug fix, and enhancement update 2015-03-05 16:13:58 UTC
Red Hat Product Errata RHSA-2015:0694 0 normal SHIPPED_LIVE Important: kernel-rt security, bug fix, and enhancement update 2015-03-17 18:39:44 UTC

Description Petr Matousek 2015-03-04 09:51:34 UTC 
It was found that Linux kernel is susceptible to soft lockup when performing
Asynchronous I/O operations due to files_lock excessive locking. An
unprivileged local user could use this flaw to crash the system.

Upstream patch:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=eee5cc2702929fd41cce28058dc6d6717f723f87
Comment 3 errata-xmlrpc 2015-03-05 13:05:34 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2015:0290 https://rhn.redhat.com/errata/RHSA-2015-0290.html
Comment 4 errata-xmlrpc 2015-03-17 14:41:47 UTC 
This issue has been addressed in the following products:

  MRG for RHEL-6 v.2

Via RHSA-2015:0694 https://rhn.redhat.com/errata/RHSA-2015-0694.html
Comment 5 Prasad Pandit 2015-03-18 13:00:03 UTC 
Statement:

This issue does not affect the versions of the kernel package as shipped with
Red Hat Enterprise Linux 5 and 6.
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