| Subject: | Segfault: core dumped with fresh CPAN install of DMI::Decode: |
| Date: | Thu, 28 Feb 2019 18:48:38 +0000 |
| To: | "bug-DMI-Decode [...] rt.cpan.org" <bug-DMI-Decode [...] rt.cpan.org> |
| From: | Guy Boyd <gboyd [...] crawford.com> |
Just a Heads Up. I can work around this with raw dmidecode output. Thanks.
==============================================================
Segfault: core dumped with DMI::Decode:
# gdb /usr/bin/perl /tmp/core-perl-sig11-user0-group0-pid18920-time1551377664
#0 0x00007fd86dbc280c in __GI__IO_str_overflow () from /lib64/libc.so.6
#1 0x00007fd86dbc0df1 in __GI__IO_default_xsputn () from /lib64/libc.so.6
#2 0x00007fd86db90eb3 in vfprintf () from /lib64/libc.so.6
#3 0x00007fd86dbb52bb in vsprintf () from /lib64/libc.so.6
#4 0x00007fd86db97457 in sprintf () from /lib64/libc.so.6
#5 0x00007fd8663de648 in sprintf (__fmt=0x7fd8663e0a70 "%s", __s=<optimized out>) at /usr/include/bits/stdio2.h:33
#6 dmi_system_uuid (p=0x14797d4 "\315/\330\001PX\021˧d\315\022DիQ\006") at /root/.cpan/build/DMI-Decode-2.04-7gbQth/src/dmidecode.c:447
#7 dmi_decode (ver=<optimized out>, data=0x14797cc "\001\033\001") at /root/.cpan/build/DMI-Decode-2.04-7gbQth/src/dmidecode.c:2998
#8 dmi_table (fd=<optimized out>, base=<optimized out>, len=<optimized out>, num=<optimized out>, pname=<optimized out>, devmem=<optimized out>, ver=<optimized out>)
at /root/.cpan/build/DMI-Decode-2.04-7gbQth/src/dmidecode.c:3903
#9 0x00007fd8663de969 in init (class=class@entry=0x106fc10 "DMI::Decode", devmem=0x1088d00 "/dev/mem") at Decode.xs:157
#10 0x00007fd8663df5cd in XS_DMI__Decode_init (my_perl=<optimized out>, cv=<optimized out>) at Decode.c:468
#11 0x00007fd86ef5c41f in Perl_pp_entersub () from /usr/lib64/perl5/CORE/libperl.so
#12 0x00007fd86ef54b96 in Perl_runops_standard () from /usr/lib64/perl5/CORE/libperl.so
#13 0x00007fd86eef1985 in perl_run () from /usr/lib64/perl5/CORE/libperl.so
#14 0x0000000000400ce9 in main ()
87 char *system_uuid;
/* (...) */
427 static char *dmi_system_uuid(u8 *p)
428 {
/* (...) */
442 if(only0x00)
443 {
444 return "Not Settable";
445 }
446
447 sprintf(system_uuid, "%s", " %02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8], p[9], p[10] ,
p[11], p[12], p[13], p[14], p[15]);
448
449 return system_uuid;
450 }
(gdb) info args
No symbol table info available.
How to reproduce:
perl -MCPAN -e shell
i /DMI::Decode/
install DMI::Decode
quit
#!/usr/bin/perl
use strict;
use warnings;
use Data::Dumper;
use DMI::Decode;
$Data::Dumper::Indent = 1;
my $dmi = new DMI::Decode; # goes boom()
# my $bios = $dmi->bios_information;
# print Dumper($bios);
# perl -version
This is perl 5, version 16, subversion 3 (v5.16.3) built for x86_64-linux-thread-multi
(with 39 registered patches, see perl -V for more detail)
dmidecode version:
Installed Packages
Name : dmidecode
Arch : x86_64
Epoch : 1
Version : 3.1
Release : 2.el7
Size : 198 k
Repo : installed
From repo : base
Summary : Tool to analyse BIOS DMI data
URL : http://www.nongnu.org/dmidecode/
License : GPLv2+
Description : dmidecode reports information about x86 & ia64 hardware as described in the
------------------------------------
SYSTEM INFORMATION FOLLOWS
uname -a
Linux localhost.localdomain 3.10.0-957.5.1.el7.x86_64 #1 SMP Fri Feb 1 14:54:57 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
/etc/redhat-release
CentOS Linux release 7.6.1810 (Core)
cpan[1]> i /DMI::Decode/
Reading '/root/.cpan/Metadata'
Database was generated on Tue, 26 Feb 2019 23:41:03 GMT
Module id = DMI::Decode
CPAN_USERID RUSSELLP (Russell Pettway <russell_pettway@yahoo.com>)
CPAN_VERSION 2.04
CPAN_FILE R/RU/RUSSELLP/DMI-Decode-2.05.tar.gz
UPLOAD_DATE 2007-05-16
MANPAGE DMI::Decode - Perl extension for extracting DMI Information
INST_FILE /usr/local/lib64/perl5/DMI/Decode.pm
INST_VERSION 2.04
Physical system information:
# bash dmidecode
# dmidecode 3.1
Getting SMBIOS data from sysfs.
SMBIOS 2.6 present.
78 structures occupying 2863 bytes.
Table at 0x000E0010.
Handle 0x0000, DMI type 0, 24 bytes
BIOS Information
Vendor: LENOVO
Version: 6IET76WW (1.36 )
Release Date: 04/14/2011
Address: 0xE0000
Runtime Size: 128 kB
ROM Size: 8192 kB
Characteristics:
PCI is supported
PC Card (PCMCIA) is supported
PNP is supported
BIOS is upgradeable
BIOS shadowing is allowed
ESCD support is available
Boot from CD is supported
Selectable boot is supported
EDD is supported
3.5"/720 kB floppy services are supported (int 13h)
Print screen service is supported (int 5h)
8042 keyboard services are supported (int 9h)
Serial services are supported (int 14h)
Printer services are supported (int 17h)
CGA/mono video services are supported (int 10h)
ACPI is supported
USB legacy is supported
BIOS boot specification is supported
Targeted content distribution is supported
BIOS Revision: 1.54
Firmware Revision: 1.20
Guy
Crawford Media Services, Inc.
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