[Bug libc/10282] free() race in mcheck hooks

["mpyne at kde dot org" <sourceware-bugzilla at sourceware dot org>]

------- Additional Comments From mpyne at kde dot org  2009-11-17 00:25 -------
(In reply to comment #5)
> That is quite strange, this appeared to me to have been fixed right before
2.11
> release. And I cannot reproduce this bug anymore with 2.11 final. Are you
sure
> you are seeing the bug with that glibc version? Is that vanilla or in some
> distribution? Does my testcase still trigger the bug for you?

This is in glibc 2.11 as distributed by Gentoo that I see it. The vanilla USE
flag is disabled so they apply whatever Gentoo magic it is that makes things
happen. However the mcheck fix patch applied cleanly and I can't believe Gentoo
would create a patch to revert that fix.

According to gitweb the affected file (malloc/hooks.c) was last updated
2009-04-17 in the glibc 2.11 tag
(http://sourceware.org/git/?p=glibc.git;a=history;f=malloc/hooks.c;h=622a815f32

Your testcase still triggered the bug (and quite expeditiously too).

-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=10282

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