On Thu, Jul 26, 2012 at 11:12 AM, Sean McBride <s...@rogue-research.com> wrote:
> On Thu, 26 Jul 2012 10:42:41 -0700, Geoffrey Irving said:
>
>>This is still a bug in Mac's posix_memalloc, though, since presumably
>>any craziness they decide to return should still be a valid argument
>>to free.  I filed a bug with Apple and worked around it in my code
>>with a !size check.
>
> What's your bug number?

It's 11965329 filed through https://bugreport.apple.com, but I don't
know how to produce a publically accessible link.  Thus, as far as I
know, the number is only useful to me and Apple.  Is there a better
place to put such reports?

> I think it's definitely worth a bug report.  If nothing else, the man page 
> should discuss whether a zero size is undefined behaviour or not.
>
> Also, here's a reference about 0-sized allocs:
> <https://www.securecoding.cert.org/confluence/display/seccode/MEM04-C.+Do+not+perform+zero+length+allocations>

Thanks for the link.  I'll fix a few other places in my code to check for this.

Geoffrey

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