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[Bug libc/10018] malloc thread-safety issues
- From: "Florian dot Douetteau at exalead dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sources dot redhat dot com
- Date: 4 Apr 2009 14:39:34 -0000
- Subject: [Bug libc/10018] malloc thread-safety issues
- References: <20090331072915.10018.clement.stenac@exalead.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From Florian dot Douetteau at exalead dot com 2009-04-04 14:39 -------
The corruption has also been reproduced on this system :
Distro Cpu Cores Libc GCC Kernel Vulnerable
Gentoo x86-64 8 2.8 4.3.2 2.6.27 Yes
When compiling glibc 2.9 out of the box on this system,
from
ftp://sources.redhat.com/pub/glibc/releases/glibc-libidn-2.9.tar.gz
and LD_PRELOADing it the corruption disappears.
When reverse applying this patch, on 2.9 sources
http://sourceware.org/cgi-bin/cvsweb.cgi/libc/malloc/malloc.c.diff?r1=1.189&r2=1.190&cvsroot=glibc
(comment: (public_rEALLOc): When new arena is used, copy really all bytes)
and recompiling, the corruption reappers.
--
http://sourceware.org/bugzilla/show_bug.cgi?id=10018
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