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# New Ticket Created by Sergey Aleynikov
# Please include the string: [perl #130623]
# in the subject line of all future correspondence about this issue.
# <URL: https://rt.perl.org/Ticket/Display.html?id=130623 >
This is a bug report for perl from sergey.aleynikov@gmail.com,
generated with the help of perlbug 1.40 running under perl 5.25.9.
-----------------------------------------------------------------
[Please describe your issue here]
While fuzzing perl v5.25.8-216-gfbceb79751 built with afl and run
under libdislocator, I found the following program
tie$0,*0
to cause an assertion failure. This is a regression in blead, bisect points to
0b077c88df88ab0d1e7e4c9d8a5a6992563912e1 is the first bad commit
commit 0b077c88df88ab0d1e7e4c9d8a5a6992563912e1
Author: Dagfinn Ilmari Mannsåker <ilmari@ilmari.org>
Date: Sun Nov 13 15:10:38 2016 +0100
Improve error for missing tie() pacakge/method
This brings the error messages in line with the ones used for normal
method calls, despite not using call_method().
GDB info about the crash location:
(gdb) bt
#0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:58
#1 0x00007f869ed7f40a in __GI_abort () at abort.c:89
#2 0x00007f869ed76e47 in __assert_fail_base (fmt=<optimized out>,
assertion=assertion@entry=0x7f86a04924f6 "!isGV_with_GP(_svcur)",
file=file@entry=0x7f86a049245f "pp_sys.c", line=line@entry=957,
function=function@entry=0x7f86a0494a80 <__PRETTY_FUNCTION__.15407>
"Perl_pp_tie")
at assert.c:92
#3 0x00007f869ed76ef2 in __GI___assert_fail (assertion=0x7f86a04924f6
"!isGV_with_GP(_svcur)", file=0x7f86a049245f "pp_sys.c", line=957,
function=0x7f86a0494a80 <__PRETTY_FUNCTION__.15407> "Perl_pp_tie")
at assert.c:101
#4 0x00007f86a033e545 in Perl_pp_tie () at pp_sys.c:957
#5 0x00007f86a0200bde in Perl_runops_debug () at dump.c:2260
#6 0x00007f86a00fb156 in S_run_body (oldscope=1) at perl.c:2528
#7 0x00007f86a00fa6d4 in perl_run (my_perl=0x7f86a1732010) at perl.c:2451
#8 0x00007f86a00b5d3e in main (argc=2, argv=0x7fff65409c28,
env=0x7fff65409c40) at perlmain.c:123
[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
category=core
severity=medium
---
Site configuration information for perl 5.25.9:
Configured by root at Sat Jan 14 02:25:05 MSK 2017.
Summary of my perl5 (revision 5 version 25 subversion 9) configuration:
Commit id: cbe2fc5001aa59cdc73e04cc35e097a2ecfbeec0
Platform:
osname=linux
osvers=3.16.0-4-amd64
archname=x86_64-linux
uname='linux dorothy 3.16.0-4-amd64 #1 smp debian 3.16.36-1+deb8u2
(2016-10-19) x86_64 gnulinux '
config_args='-des -Dusedevel -DDEBUGGING -Dcc=afl-clang-fast
-Doptimize=-O0 -g -ggdb3'
hint=recommended
useposix=true
d_sigaction=define
useithreads=undef
usemultiplicity=undef
use64bitint=define
use64bitall=define
uselongdouble=undef
usemymalloc=n
bincompat5005=undef
Compiler:
cc='afl-clang-fast'
ccflags ='-DDEBUGGING -fno-strict-aliasing -pipe
-fstack-protector-strong -I/usr/local/include -D_LARGEFILE_SOURCE
-D_FILE_OFFSET_BITS=64 -D_FORTIFY_SOURCE=2'
optimize='-O0 -g -ggdb3'
cppflags='-DDEBUGGING -fno-strict-aliasing -pipe
-fstack-protector-strong -I/usr/local/include'
ccversion=''
gccversion='4.2.1 Compatible Clang 3.9.1 (tags/RELEASE_391/rc2)'
gccosandvers=''
intsize=4
longsize=8
ptrsize=8
doublesize=8
byteorder=12345678
doublekind=3
d_longlong=define
longlongsize=8
d_longdbl=define
longdblsize=16
longdblkind=3
ivtype='long'
ivsize=8
nvtype='double'
nvsize=8
Off_t='off_t'
lseeksize=8
alignbytes=8
prototype=define
Linker and Libraries:
ld='afl-clang-fast'
ldflags =' -fstack-protector-strong -L/usr/local/lib'
libpth=/usr/local/lib /usr/lib/llvm-3.9/bin/../lib/clang/3.9.1/lib
/usr/include/x86_64-linux-gnu /usr/lib /lib/x86_64-linux-gnu
/lib/../lib /usr/lib/x86_64-linux-gnu /usr/lib/../lib /lib
libs=-lpthread -lnsl -ldl -lm -lcrypt -lutil -lc
perllibs=-lpthread -lnsl -ldl -lm -lcrypt -lutil -lc
libc=libc-2.24.so
so=so
useshrplib=false
libperl=libperl.a
gnulibc_version='2.24'
Dynamic Linking:
dlsrc=dl_dlopen.xs
dlext=so
d_dlsymun=undef
ccdlflags='-Wl,-E'
cccdlflags='-fPIC'
lddlflags='-shared -O0 -g -ggdb3 -L/usr/local/lib -fstack-protector-strong'
---
@INC for perl 5.25.9:
lib
/usr/local/lib/perl5/site_perl/5.25.9/x86_64-linux
/usr/local/lib/perl5/site_perl/5.25.9
/usr/local/lib/perl5/5.25.9/x86_64-linux
/usr/local/lib/perl5/5.25.9
---
Environment for perl 5.25.9:
HOME=/home/afl
LANG=en_US.UTF-8
LANGUAGE=en_US:en
LD_LIBRARY_PATH (unset)
LOGDIR (unset)
PATH=/home/afl/perlbrew/bin:/home/afl/perlbrew/perls/perl-5.22.1/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games
PERLBREW_BASHRC_VERSION=0.78
PERLBREW_HOME=/home/afl/.perlbrew
PERLBREW_MANPATH=/home/afl/perlbrew/perls/perl-5.22.1/man
PERLBREW_PATH=/home/afl/perlbrew/bin:/home/afl/perlbrew/perls/perl-5.22.1/bin
PERLBREW_PERL=perl-5.22.1
PERLBREW_ROOT=/home/afl/perlbrew
PERLBREW_VERSION=0.78
PERL_BADLANG (unset)
SHELL=/usr/bin/zsh
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