Bug 453646 - Compile perl with -DPERL_USE_SAFE_PUTENV
Compile perl with -DPERL_USE_SAFE_PUTENV
Product: Fedora
Classification: Fedora
Component: perl (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Marcela Mašláňová
Fedora Extras Quality Assurance
Depends On:
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Reported: 2008-07-01 13:22 EDT by Lubomir Rintel
Modified: 2008-07-06 02:17 EDT (History)
4 users (show)

See Also:
Fixed In Version: perl-5.10.0-30.fc9
Doc Type: Bug Fix
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Last Closed: 2008-07-02 05:49:04 EDT
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Description Lubomir Rintel 2008-07-01 13:22:51 EDT
Description of problem:

Perl by default manages to take care of environment with its custom memory
management routines, to work around leaky putenv() implementations. However,
once a module modifies environment, perl loses track and panics upon deallocation.

For an example of a problem caused by this, see perlbug RT ticket #56500 [1],
where Term::ReadLine::Gnu is the module that modifies environment. It is very
likely that there are other such modules.

[1] http://rt.perl.org/rt3/Ticket/Display.html?id=56500

According to putenv(3) manual it is not necessary for perl to deal with possible
putenv() leaks in Fedora 9, since glibc correctly implements it as of 2.1.2.

According to perl's INSTALL file, the problematic behavior can be disabled with

Version-Release number of selected component (if applicable):

Comment 1 Marcela Mašláňová 2008-07-02 05:49:04 EDT
This will hit also rawhide soon.
Comment 2 Lubomir Rintel 2008-07-02 10:37:32 EDT
Thanks a lot. Just for the record -- apart from Term::ReadLine::Gnu this also
reportedly fixed issues with wxPerl and Class::MethodMaker; in case you are
aware of any bugs open that might relate to this.
Comment 3 Fedora Update System 2008-07-06 02:17:28 EDT
perl-5.10.0-30.fc9 has been pushed to the Fedora 9 stable repository.  If problems still persist, please make note of it in this bug report.

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