bug#23726: emacs 25.0.94 crashes

[Jan Synacek]

On Wed, Jun 8, 2016 at 8:52 PM, Florian Weimer <fweimer@redhat.com> wrote:
> 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.

Thanks for investigating and the quick fix!

-- 
Jan Synacek
Software Engineer, Red Hat