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[Bug regex/18040] use-after-free in regexec/get_subexp
- From: "konstantin.s.serebryany at gmail dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Thu, 19 Mar 2015 15:54:24 +0000
- Subject: [Bug regex/18040] use-after-free in regexec/get_subexp
- Auto-submitted: auto-generated
- References: <bug-18040-131 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=18040
--- Comment #2 from Kostya Serebryany <konstantin.s.serebryany at gmail dot com> ---
(In reply to Florian Weimer from comment #1)
> Is it possible to trigger this without REG_EXTENDED and a back reference?
>
> (â\1â in an ERE makes behavior undefined according to POSIX.)
I don't think I've seen this w/o REG_EXTENDED, but let me re-run the fuzzer
with cflags=0
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