attribute on lexical introduced in hash constructor

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Migrated from rt.perl.org#123817 (status was 'resolved')

Searchable as RT123817$

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From @hvds

AFL (<http​://lcamtuf.coredump.cx/afl>) finds this​:

% ./perl -e '$y = { my $x : m }'
Invalid SCALAR attribute​: m at -e line 1.
perl​: op.c​:721​: Perl_op_free​: Assertion `!(o->op_private & ~PL_op_private_valid[type])' failed.
Aborted (core dumped)
%

This is OPpLVAL_INTRO set on the initial OP_LIST by my_attrs, preserved when it's converted by newANONHASH.

I suspect at least newANONLIST() and newANONHASH() should simply clear that flag, but I'm not sure what if any impact that might have, and not sure if any of the other op_convert_list() callers should.

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From @cpansprout

On Fri Feb 13 06​:28​:39 2015, hv wrote​:

AFL (<http​://lcamtuf.coredump.cx/afl>) finds this​:

% ./perl -e '$y = { my $x : m }'
Invalid SCALAR attribute​: m at -e line 1.
perl​: op.c​:721​: Perl_op_free​: Assertion `!(o->op_private &
~PL_op_private_valid[type])' failed.
Aborted (core dumped)
%

This is OPpLVAL_INTRO set on the initial OP_LIST by my_attrs,
preserved when it's converted by newANONHASH.

I suspect at least newANONLIST() and newANONHASH() should simply clear
that flag, but I'm not sure what if any impact that might have, and
not sure if any of the other op_convert_list() callers should.

I fixed this in 6b2b48a by turning off the flag in op_convert_list.

--

Father Chrysostomos

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The RT System itself - Status changed from 'new' to 'open'

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@cpansprout - Status changed from 'open' to 'pending release'

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From @khwilliamson

Thank you for submitting this ticket.

The issue should now be resolved with the release today of Perl v5.22, which is available at http​://www.perl.org/get.html
--
Karl Williamson for the Perl 5 team

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@khwilliamson - Status changed from 'pending release' to 'resolved'