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[perl #134169] 5.30.0 - Unable to set supplementary group IDs

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From:
James E Keenan via RT
Date:
June 3, 2019 20:46
Subject:
[perl #134169] 5.30.0 - Unable to set supplementary group IDs
Message ID:
rt-4.0.24-29632-1559594771-553.134169-15-0@perl.org
On Mon, 03 Jun 2019 12:52:50 GMT, manuel-perl@mausz.at wrote:
> This is a bug report for perl from manuel-perl@mausz.at,
> generated with the help of perlbug 1.41 running under perl 5.30.0.
> 
> 
> -----------------------------------------------------------------
> [Please describe your issue here]
> 
> In perl 5.30 it's impossible to set supplementary group IDs as the group
> id parsing fails.
> 
> This is due to the fact that Perl_grok_atoUV has been changed so endptr
> constraints the input. In the current code the endptr simply does not
> get reset.
> 
> As this might leave processes with extended privileges I've marked this
> as critical.
> 
> See https://github.com/Perl/perl5/pull/21
> 

Could you provide a brief example of how, previously, you would have expected to be able to set these supplementary grou IDs?

Thank you very much.

-- 
James E Keenan (jkeenan@cpan.org)

---
via perlbug:  queue: perl5 status: new
https://rt.perl.org/Ticket/Display.html?id=134169

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