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Re: [perl #129267] Possible string overrun with invalid len in gv.c

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September 13, 2016 19:01
Re: [perl #129267] Possible string overrun with invalid len in gv.c
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On 13 September 2016 at 20:59, Todd Rinaldo via RT
<> wrote:
> On Tue Sep 13 11:29:21 2016, petdance wrote:
>> > On Sep 13, 2016, at 1:25 PM, demerphq <> wrote:
>> >
>> > > I did not search for other examples. I thought it might be best to
>> > > open a discussion before proceeding on any work.
>> >
>> > Not sure what there is to discuss really.  Wrong is wrong. ☺️
>> >
>> I took the comment to mean “For all I know, there may be other
>> examples elsewhere in the codebase, and it might even be a security
>> hole, but I haven’t investigated further, but someone probably should
>> before we just patch this and call it done."
> Correct. I was a little concerned this code pattern might be being used to walk other string incorrectly.

We can and should audit for similar patterns, but my gut feeling is
that this code is pretty unusual, as it is trying to extract the
function part of a fully qualified name.


perl -Mre=debug -e "/just|another|perl|hacker/"

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