In perl.git, the branch tonyc/caller_crash has been created
<http://perl5.git.perl.org/perl.git/commitdiff/76e7a9fe39549ab86e80cf93da9b638464dbe8f6?hp=0000000000000000000000000000000000000000>
at 76e7a9fe39549ab86e80cf93da9b638464dbe8f6 (commit)
- Log -----------------------------------------------------------------
commit 76e7a9fe39549ab86e80cf93da9b638464dbe8f6
Author: Tony Cook <t...@develop-help.com>
Date: Tue Apr 8 11:12:38 2014 +1000
[perl #120998] avoid caller() crashing on eval '' stack frames
Starting from v5.17.3-150-g19bcb54e caller() on an eval frame would
end up calling Perl_sv_grow() with newlen = 0xFFFFFFFF on 32-bit
systems.
This eventually started segfaulting with v5.19.0-442-gcbcb2a1 which
added code to round up allocations to the nearest 0x100, setting
newlen to 0, faulting when sv_setpvn() attempted to copy its source
string into the zero space provided.
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