On 10/5/21 1:50 PM, Dominique Martinet wrote:
> If I change malloc_usable_size to return p->mh_nbytes instead of
> maxbytes, then the crash disappears.[2]
>
> I did not read the full bash malloc code but I suspect the buffer really
> could be grown, but we would need to fix p->mh_nbytes to maxbytes and
> also adjust the end block to pass sanity checks on free -- e.g. it
> should be considered as a lightweight inplace realloc.
>
> I'm not sure we care enough to be honest and returning what is really
> usable feels like the simplest solution, what do you think?
>
Thanks for your work tracking this down.
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU [email protected] http://tiswww.cwru.edu/~chet/
