bulk88

global var PL_hash_state_w >=~ 24000 bytes long

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**Description** Perl's global var PL_hash_state_w is 24608 bytes long on 32b Win32 blead perl. That is 24608/4096=6.0078 OS pages of memory. I can't imagine 24KB of randomness being somehow more...

open() on ref to many MBs long scalar, then <$fh>, causes fatal OOM in pp_readline and sv_gets, probably Win32-only

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```open()``` on a large scalar (MBs worth), with LF lines, NOT CRLF lines, then calling `````` aka pp_readline(), causes a mem leak and a fatal "Out of memory!" on 5.32....

Inside re.xs/re.dll, Perl_populate_bitmap_from_invlist() has half a dozen if(!invlist) _assert_libc() call sites. Atleast PERL_ARGS_ASSERT_POPULATE_BITMAP_FROM_INVLIST, invlist_iterinit(), invlist_iternext(), invlist_iterfinish() are all testing a C auto var that was proven inside PERL_ARGS_ASSERT_POPULATE_BITMAP_FROM_INVLIST to be...

GetFileType() has shortcuts, it first checks against -1 -2 -3, then checks against PEB's 3 master IN, OUT, ERR kernel handles, then checks if it is tagged/unaligned [open secret, not...

Part of PR https://github.com/Perl/perl5/pull/23371 see details in that PR

This array is 59 bytes long, and is rounded to 64 bytes of .rdata storage. While all commercial/big FOSS CCs will correctly discard this unreferenced array during link phase (.o/.obj...

Ever since threads and SMP motherboards were invented, C's grammer token errno has been a function call returning an int * and not a extern "C" global data variable. Whether...

perl -V being mockable is a security problem re: #21135 Errno archname/osvers too strict.

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Module: NOT!!!! Config.pm **Description** https://github.com/Perl/perl5/issues/21135 "Errno archname/osvers too strict. " I know this bug ticket is closed, but I totally disagree with this fix. $Config{archname} and $Config{osvers} should be be...

https://github.com/Perl/perl5/blob/d6f09a896842e5288af5d3817756b67a919ad7ad/regcomp.c#L396 I randomly found a multi-eval of a macro bug here, along with very low quality (bloated) "-O1 optimized" machine code here. But I can't fix it myself because there...

SV PV COW 255 doesn't support strings under 9 SvCUR() bytes long

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**Description** from sv.c ``` #ifndef SV_COW_MAX_WASTE_FACTOR_THRESHOLD # define SV_COW_MAX_WASTE_FACTOR_THRESHOLD 2 /* COW iff len < (cur * K) */ #endif #ifndef SV_COWBUF_WASTE_FACTOR_THRESHOLD # define SV_COWBUF_WASTE_FACTOR_THRESHOLD 2 /* COW iff len...