Tainted fork crash on Win32
Experimentation with [http://camelpack.sf.net|VanillaPerl] 5.8.8 on Win32 uncovered a surprising bug: fork under taint caused a major crash, with the dreaded dialog box saying "perl.exe has encountered an error and needs to close". This was isolated to and replicated with:
perl -Te "fork"
I [http://rt.perl.org/rt3/Ticket/Display.html?id=39061|posted it] to perlbug, but I'd like to see if others on Win32 can replicate (or refute) this for other Win32 perls. (E.g. ActiveState, cygwin, different perl versions, etc.)
If you have a Win32 perl, could you please give that snippet a try and post your platform, distribution and version and whether or not it worked?
Thanks!
-xdg
Code written by xdg and posted on PerlMonks is [http://creativecommons.org/licenses/publicdomain|public domain]. It is provided as is with no warranties, express or implied, of any kind. Posted code may not have been tested. Use of posted code is at your own risk.
Re: Tainted fork crash on Win32
created: 2006-05-03 21:08:06
No crashes here:
>perl -Te "fork" >perl -v This is perl, v5.8.0 built for MSWin32-x86-multi-thread (with 1 registered patch, see perl -V for more detail) >perl -Te "fork" >perl -v This is perl, v5.6.1 built for MSWin32-x86-multi-thread (with 1 registered patch, see perl -V for more detail)
Re^2: Tainted fork crash on Win32
created: 2006-05-03 21:24:09
ActiveState? If so, which builds?
-xdg
Code written by xdg and posted on PerlMonks is public domain. It is provided as is with no warranties, express or implied, of any kind. Posted code may not have been tested. Use of posted code is at your own risk.
Re^3: Tainted fork crash on Win32
created: 2006-05-03 23:03:56
oops, I cut the messages short in my rush to leave.
This is perl, v5.8.0 built for MSWin32-x86-multi-thread (with 1 registered patch, see perl -V for more detail) Copyright 1987-2002, Larry Wall Binary build 806 provided by ActiveState Corp. http://www.ActiveState.com Built 00:45:44 Mar 31 2003
and
This is perl, v5.6.1 built for MSWin32-x86-multi-thread (with 1 registered patch, see perl -V for more detail) Copyright 1987-2001, Larry Wall Binary build 635 provided by ActiveState Corp. http://www.ActiveState.com Built 15:34:21 Feb 4 2003
On WinXP.
Re: Tainted fork crash on Win32
created: 2006-05-03 21:43:54
The following crashed with Windows XP and ActiveState Perl:
C:\>perl -Te "fork" C:\>perl -v This is perl, v5.8.7 built for MSWin32-x86-multi-thread (with 7 registered patches, see perl -V for more detail)
DWIM is Perl's answer to Gödel
Re: Tainted fork crash on Win32
created: 2006-05-03 22:32:10
XP. AS811 (5.8.6) doesn't crash, AS817 (5.8.8) does.
C:\TEST>perl -v This is perl, v5.8.6 built for MSWin32-x86-multi-thread (with 3 registered patches, see perl -V for more detail) Copyright 1987-2004, Larry Wall Binary build 811 provided by ActiveState Corp. http://www.ActiveState.com ActiveState is a division of Sophos. Built Dec 13 2004 09:52:01 C:\AS817\perl\bin>perl -v This is perl, v5.8.8 built for MSWin32-x86-multi-thread (with 25 registered patches, see perl -V for more detail) Copyright 1987-2006, Larry Wall Binary build 817 [257965] provided by ActiveState http://www.ActiveState.com Built Mar 20 2006 17:54:25
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
Lingua non convalesco, consenesco et abolesco. -- Rule 1 has a caveat! -- Who broke the cabal?
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
Re: Tainted fork crash on Win32
created: 2006-05-04 03:03:21
No crashes with a home-built 5.8.2 (MSVC6 I think) and ActiveState build 809:
5.8.2
Q:\>perl -Te "fork"
Q:\>perl -V
Summary of my perl5 (revision 5 version 8 subversion 2) configuration:
Platform:
osname=MSWin32, osvers=4.0, archname=MSWin32-x86-multi-thread
uname=''
config_args='undef'
hint=recommended, useposix=true, d_sigaction=undef
usethreads=undef use5005threads=undef useithreads=define usemultiplicity=def
ine
useperlio=define d_sfio=undef uselargefiles=define usesocks=undef
use64bitint=undef use64bitall=undef uselongdouble=undef
usemymalloc=n, bincompat5005=undef
Compiler:
cc='cl', ccflags ='-nologo -Gf -W3 -MD -DNDEBUG -O1 -DWIN32 -D_CONSOLE -DNO_
STRICT -DHAVE_DES_FCRYPT -DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -DUSE_PERL
IO -DPERL_MSVCRT_READFIX',
optimize='-MD -DNDEBUG -O1',
cppflags='-DWIN32'
ccversion='', gccversion='', gccosandvers=''
intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
d_longlong=undef, longlongsize=8, d_longdbl=define, longdblsize=10
ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='__int64', lseeksi
ze=8
alignbytes=8, prototype=define
Linker and Libraries:
ld='link', ldflags ='-nologo -nodefaultlib -release -libpath:"s:\os\osi\osi
i\systeme\tools\perl-5.8\5.8.2\lib\CORE" -machine:x86'
libpth=C:\PROGRA~1\MICROS~3\VC98\lib
libs= oldnames.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32
.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib netapi32.lib uuid.lib wsoc
k32.lib mpr.lib winmm.lib version.lib odbc32.lib odbccp32.lib msvcrt.lib
perllibs= oldnames.lib kernel32.lib user32.lib gdi32.lib winspool.lib comd
lg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib netapi32.lib uuid.lib
wsock32.lib mpr.lib winmm.lib version.lib odbc32.lib odbccp32.lib msvcrt.lib
libc=msvcrt.lib, so=dll, useshrplib=yes, libperl=perl58.lib
gnulibc_version='undef'
Dynamic Linking:
dlsrc=dl_win32.xs, dlext=dll, d_dlsymun=undef, ccdlflags=' '
cccdlflags=' ', lddlflags='-dll -nologo -nodefaultlib -release -libpath:"s:
\os\osi\osii\systeme\tools\perl-5.8\5.8.2\lib\CORE" -machine:x86'
Characteristics of this binary (from libperl):
Compile-time options: MULTIPLICITY USE_ITHREADS USE_LARGE_FILES PERL_IMPLICIT_
CONTEXT PERL_IMPLICIT_SYS
Built under MSWin32
Compiled at Nov 6 2003 12:48:55
@INC:
s:/OS/OSI/OSII/Systeme/tools/perl-5.8/5.8.2/lib
s:/OS/OSI/OSII/Systeme/tools/perl-5.8/site/5.8.2/lib
.
5.8.3
Q:\>perl -Te "fork"
Q:\>perl -V
Summary of my perl5 (revision 5 version 8 subversion 3) configuration:
Platform:
osname=MSWin32, osvers=4.0, archname=MSWin32-x86-multi-thread
uname=''
config_args='undef'
hint=recommended, useposix=true, d_sigaction=undef
usethreads=undef use5005threads=undef useithreads=define usemultiplicity=def
ine
useperlio=define d_sfio=undef uselargefiles=define usesocks=undef
use64bitint=undef use64bitall=undef uselongdouble=undef
usemymalloc=n, bincompat5005=undef
Compiler:
cc='cl', ccflags ='-nologo -Gf -W3 -MD -Zi -DNDEBUG -O1 -DWIN32 -D_CONSOLE -
DNO_STRICT -DHAVE_DES_FCRYPT -DNO_HASH_SEED -DPERL_IMPLICIT_CONTEXT -DPERL_IMPL
ICIT_SYS -DUSE_PERLIO -DPERL_MSVCRT_READFIX',
optimize='-MD -Zi -DNDEBUG -O1',
cppflags='-DWIN32'
ccversion='', gccversion='', gccosandvers=''
intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
d_longlong=undef, longlongsize=8, d_longdbl=define, longdblsize=10
ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='__int64', lseeksi
ze=8
alignbytes=8, prototype=define
Linker and Libraries:
ld='link', ldflags ='-nologo -nodefaultlib -debug -opt:ref,icf -libpath:"C:
\Programme\Perl\lib\CORE" -machine:x86'
libpth=C:\PROGRA~1\MICROS~3\VC98\lib
libs= oldnames.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32
.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib netapi32.lib uuid.lib wsoc
k32.lib mpr.lib winmm.lib version.lib odbc32.lib odbccp32.lib msvcrt.lib
perllibs= oldnames.lib kernel32.lib user32.lib gdi32.lib winspool.lib comd
lg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib netapi32.lib uuid.lib
wsock32.lib mpr.lib winmm.lib version.lib odbc32.lib odbccp32.lib msvcrt.lib
libc=msvcrt.lib, so=dll, useshrplib=yes, libperl=perl58.lib
gnulibc_version='undef'
Dynamic Linking:
dlsrc=dl_win32.xs, dlext=dll, d_dlsymun=undef, ccdlflags=' '
cccdlflags=' ', lddlflags='-dll -nologo -nodefaultlib -debug -opt:ref,icf -
libpath:"C:\Programme\Perl\lib\CORE" -machine:x86'
Characteristics of this binary (from libperl):
Compile-time options: MULTIPLICITY USE_ITHREADS USE_LARGE_FILES PERL_IMPLICIT_
CONTEXT PERL_IMPLICIT_SYS
Locally applied patches:
ActivePerl Build 809
22218 Remove the caveat about detached threads crashing on Windows
22201 Avoid threads+win32 crash by freeing Perl interpreter slightly lat
er
22169 Display 'out of memeory' errors using low-level I/O
22159 Upgrade to Time::Hires 1.55
22120 Make 'Configure -Dcf_by=...' work
22051 Upgrade to Time::HiRes 1.54
21540 Fix backward-compatibility issues in if.pm
Built under MSWin32
Compiled at Feb 3 2004 00:28:51
@INC:
C:/Programme/Perl/lib
C:/Programme/Perl/site/lib
.
Re: Tainted fork crash on Win32
created: 2006-05-11 06:19:59
Hi
I am able to replicate the same Issue.
Win32 taint fork crash
"Keep pouring your ideas"