In perl.git, the branch smoke-me/nicholas/rt-65838-fixup has been created
<http://perl5.git.perl.org/perl.git/commitdiff/0543dd181ebd1c97c7d6e3662335d4e9a09f3e64?hp=0000000000000000000000000000000000000000>
at 0543dd181ebd1c97c7d6e3662335d4e9a09f3e64 (commit)
- Log -----------------------------------------------------------------
commit 0543dd181ebd1c97c7d6e3662335d4e9a09f3e64
Author: Nicholas Clark <[email protected]>
Date: Thu Jun 27 18:09:32 2013 +0200
Avoid read-after-free in S_scan_heredoc() if the terminator line has no
"\n".
The code added by commit 112d128413206514 to fix RT #65838 (Allow here-doc
with no final newline) could in some rare cases cause a read of free()d
memory during parsing. The code itself is only run if the Perl program
ends with a heredoc (which is an unusual structure), and if the last line of
the file on disk has terminating newline character (which is also unusual,
as many editors default to adding a final newline). The bug would be
triggered if the fixup code in S_scan_heredoc() triggered a reallocation of
the buffer in PL_linestr when adding a newline to it.
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