This simple test: #!/usr/bin/perl use strict; use warnings; #use utf8; { package PerlIO::via::Bug; sub PUSHED { return bless {}, $_[0]; } sub READ { return $_[2]; } } open my $fh, '<:raw:via(Bug)', '/dev/null' or die "Cannot open, $! $?"; read $fh, ( my $buf ), 1024; print $buf; accesses foreign data (and puts them into $buf and prints them). All perls are affected, the specific output depends on perl version and on the "use utf8" pragma. Valgrinds warns on write(2) with uninitialized memory. Reported to upstream as <https://rt.perl.org/rt3//Public/Bug/Display.html?id=119961>. All Fedoras are affected.
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Still issue in F19 (perl-5.16.3-266.fc19.x86_64).
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This bug appears to have been reported against 'rawhide' during the Fedora 23 development cycle. Changing version to '23'. (As we did not run this process for some time, it could affect also pre-Fedora 23 development cycle bugs. We are very sorry. It will help us with cleanup during Fedora 23 End Of Life. Thank you.) More information and reason for this action is here: https://fedoraproject.org/wiki/BugZappers/HouseKeeping/Fedora23
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perl-interpreter-5.26.0-395.fc27.x86_64 still broken.
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Still valid in F28
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perl-5.28.1 is still broken.
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This bug appears to have been reported against 'rawhide' during the Fedora 33 development cycle. Changing version to 33.
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This bug appears to have been reported against 'rawhide' during the Fedora 36 development cycle. Changing version to 36.
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perl-5.36.1 is still broken.
This bug appears to have been reported against 'rawhide' during the Fedora Linux 39 development cycle. Changing version to 39.
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Still valid in Perl 5.40.0
This bug appears to have been reported against 'rawhide' during the Fedora Linux 42 development cycle. Changing version to 42.