From: Florian Weimer <fweimer@redhat.com>
To: "Paul Eggert" <eggert@cs.ucla.edu>, "Jan Synáček" <jsynacek@redhat.com>
Cc: 23726@debbugs.gnu.org
Subject: bug#23726: emacs 25.0.94 crashes
Date: Wed, 8 Jun 2016 20:52:42 +0200 [thread overview]
Message-ID: <a8e79f37-9ef4-3dd1-8a18-9f24e74bdfdb@redhat.com> (raw)
In-Reply-To: <72a0452f-b732-d562-47a7-cedbc9548a39@redhat.com>
On 06/08/2016 08:34 PM, Florian Weimer wrote:
> The problem is that the realloc implementation for dumped chunks is
> incorrect; that bit is already in glibc master and rawhide. I think I
> can see what is wrong: The size computation for the old chunk size in
> realloc is wrong, and the trailing sizeof (size_t) bytes are not copied.
> Fortunately, it's not a conceptual problem with the heap rewriter.
glibc patch posted:
https://sourceware.org/ml/libc-alpha/2016-06/msg00261.html
The same dumped binary crashes before this patch is applied, and works
afterwards.
Jan, thanks for reporting this.
Florian
next prev parent reply other threads:[~2016-06-08 18:52 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-08 10:21 bug#23726: 25.0.94; emacs 25.0.94 crashes Jan Synáček
2016-06-08 16:49 ` Eli Zaretskii
2016-06-08 17:32 ` bug#23726: " Paul Eggert
2016-06-08 18:34 ` Florian Weimer
2016-06-08 18:52 ` Florian Weimer [this message]
2016-06-08 18:57 ` Paul Eggert
2016-06-09 6:17 ` Jan Synacek
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