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[perl #126191] null ptr deref and segfault: Perl_pad_add_anon(pad.c:821) [perl 5.21.7]

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From:
Tony Cook via RT
Date:
January 21, 2019 04:47
Subject:
[perl #126191] null ptr deref and segfault: Perl_pad_add_anon(pad.c:821) [perl 5.21.7]
Message ID:
rt-4.0.24-8356-1548046053-1498.126191-15-0@perl.org
On Thu, 15 Sep 2016 15:22:08 -0700, brian.carpenter@gmail.com wrote:
> On Fri Sep 25 19:38:48 2015, brian.carpenter@gmail.com wrote:
> > perl -e 'qq{@{sub{]]}}};qq{@{sub{]]}}}}}}'
> 
> v5.25.5 (v5.25.4-110-g95c0a76)
> 
> perl: op.c:5966: OP *Perl_newSVOP(I32, I32, SV *): Assertion `sv' failed.

This looks like it was fixed by bb4e4c3869d9fb6ee5bddd820c2a373601ecc310.

 $ git describe
 v5.27.8-155-gbb4e4c3869
 $ ./perl ../126191.pl
 syntax error at ../126191.pl line 1, near "{]"
 Execution of ../126191.pl aborted due to compilation errors.

Immediately before:

 $ git describe
 v5.27.8-154-g4bfb5532d3
 $ ./perl ../126191.pl
 perl: op.c:7236: Perl_newSVOP: Assertion `sv' failed.
 Aborted

Tony

---
via perlbug:  queue: perl5 status: open
https://rt.perl.org/Ticket/Display.html?id=126191

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