[PATCH] malloc: verify the size of top chuck, stopping House of Force

Florian Weimer fweimer@redhat.com
Wed Aug 15 15:25:00 GMT 2018


On 10/26/2017 07:49 PM, DJ Delorie wrote:
> 
> Pochang Chen <johnchen902@gmail.com> writes:
>> 2017-10-26  Pochang Chen  <johnchen902@gmail.com>
>>      * malloc/malloc.c (_int_malloc.c): verify size of top chunk
> 
> LGTM and benchmarks are OK.
> 
> I'll apply it for you if nobody else objects...

Typo in the subject (“chuck”).  The braces should also be removed from 
the if statement.

I checked, and av->system_mem is updated properly, so this should be 
okay (no false positives).

DJ, will you apply this patch?  We do not need copyright assignment for 
this.

Thanks,
Florian



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