[musl] Re: BUG: realloc(p,0) should be consistent with malloc(0)

[Sam James]

Alejandro Colomar <alx@kernel.org> writes:

> Hi Sam,
>
> On Sat, Jun 21, 2025 at 04:57:32AM +0100, Sam James wrote:
>> Alejandro Colomar <alx@kernel.org> writes:
>> 
>> > [...]
>> >
>> > But the glibc maintainers mentioned that they're investigating about it
>> > in distros, so I guess we'll eventually have the results of their
>> > investigation.
>> >
>> 
>> To manage expectations: I haven't seen anyone say they're going to work
>> on this. I recall Sid mentioning it *could* be done (not offering to do
>> it) and Adhemerval made a similar remark, but I don't think anyone has
>> said they're undertaking this work.
>> 
>> If I've missed some other remark (very possible with the length of the
>> thread!), let me know of course.
>
> Adhemerval mentioned in
> Message-ID: <14fd8d0b-d32d-421f-8262-9c7ff9b1a22b@linaro.org>
>
> | So what I would expect to move this forwards will be to.

The bit before that is important ;)

That's where he said (and later corrected himself) that there was
consensus, and so the next steps would be ...

> | 
> | 1. Reopen https://sourceware.org/bugzilla/show_bug.cgi?id=12547
> | 
> | 2. Follow the suggestions laid out by Siddhesh [2].  The Distribution-wide
> |    verification seems already to be in progress, with some good results
> |    from gnulib realloc replacement and some work by you on checking some
> |    other projects (systemd for instance).
> | 
> | 3. Prepare the patch to change it, along with the manual documentation,
> |    regression testcase, and the NEW entry.
> | 
> | 4. Since we are near to 2.42 release, this change should be done once
> |    2.43 starts to give some time to check potential issue with rolling
> |    distros like Fedora Rawhide.

I don't think anybody is doing such distro-wide work other than things
using gnulib where we'd notice if tests started to fail. That's what I'm
trying to clarify: please don't wait on anybody doing it, because
nobody's declared they're working on it.