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Bug 1091162

Summary:	Race condition using ATOMIC_FASTBINS.
Product:	Red Hat Enterprise Linux 6	Reporter:	Jan Kurik <jkurik>
Component:	glibc	Assignee:	Carlos O'Donell <codonell>
Status:	CLOSED ERRATA	QA Contact:	Arjun Shankar <ashankar>
Severity:	high	Docs Contact:
Priority:	urgent
Version:	6.4	CC:	alanm, ashankar, bhubbard, codonell, dbasant, dberry, dkochuka, fweimer, law, mfranc, michele, mnewsome, mosvald, mschuppe, pfrankli, pm-eus, rvdwees, spoyarek, ssahani, tbowling, vgaikwad
Target Milestone:	rc	Keywords:	ZStream
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	glibc-2.12-1.132.el6_5.1	Doc Type:	Bug Fix
Doc Text:	Certain code paths used by the C library's memory allocator "fastbins" feature, enabled by default (mallopt option M_MXFAST set to non-zero), were not thread-safe. When the non-safe code paths executed they could cause corruption in the allocator that would lead to a program segfault. The thread-unsafe code paths have been made thread-safe and should no longer cause application segfaults.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2014-05-12 08:06:04 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1027101
Bug Blocks:

Description Jan Kurik 2014-04-25 05:04:02 UTC

This bug has been copied from bug #1027101 and has been proposed
to be backported to 6.5 z-stream (EUS).

Comment 13 errata-xmlrpc 2014-05-12 08:06:04 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2014-0480.html