This is the mail archive of the
libc-alpha@sourceware.org
mailing list for the glibc project.
Re: [PATCH] Always do locking when accessing streams (bug 15142, bug 14697)
* Andreas Schwab:
> On Feb 17 2020, Florian Weimer wrote:
>
>> * Andreas Schwab:
>>
>>> On Feb 16 2020, Florian Weimer wrote:
>>>
>>>> I'm not sure if the justification is correct. We don't know if there
>>>> are programs which call flockfile on some file and expect exit to
>>>> still work (and terminate the program), which is part of what
>>>> nptl/tst-stdio1 tests.
>>>
>>> But that's exactly what the bug is about. Random memory corruption
>>> cannot be the answer.
>>
>> Sure, but breaking existing programs so that they never terminate is
>> not acceptable, either.
>
> They were always erroneous.
Yes, but we might be heading towards another memcpy or glob situation
here, where we had to bump symbol versions to keep important (but broken)
software running.