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Bug 523950

Summary: sys-power/nut-2.6.5-r1 - nut-scanner: segmentation fault due to calling pthread_join on an invalid thread_t id, when it is run without arguments
Product: Gentoo Linux Reporter: Lukas Sandström <luksan>
Component: [OLD] Core systemAssignee: Robin Johnson <robbat2>
Status: UNCONFIRMED ---    
Severity: normal CC: prometheanfire
Priority: Normal Keywords: PATCH
Version: unspecified   
Hardware: All   
OS: Linux   
Whiteboard:
Package list:
Runtime testing required: ---
Attachments: Patch to prevent nut-scanner segfault.

Description Lukas Sandström 2014-09-28 16:18:22 UTC
Created attachment 385684 [details, diff]
Patch to prevent nut-scanner segfault.

nut-scanner segfaults due to calling pthread_join on an invalid thread_t id, when it run without arguments.

The attached patch solves the problem by only calling pthread_join if pthread_create has been called.


Portage 2.2.8-r2 (default/linux/amd64/13.0/desktop/kde, gcc-4.7.3, glibc-2.19-r1, 3.14.14-gentoo x86_64)
=================================================================
System uname: Linux-3.14.14-gentoo-x86_64-Intel-R-_Core-TM-_i7-3770K_CPU_@_3.50GHz-with-gentoo-2.2
KiB Mem:    16389300 total,   8396296 free
KiB Swap:          0 total,         0 free
Timestamp of tree: Sat, 27 Sep 2014 19:00:01 +0000
ld GNU ld (GNU Binutils) 2.23.2
distcc 3.1 x86_64-pc-linux-gnu [disabled]
app-shells/bash:          4.2_p49
dev-java/java-config:     2.2.0
dev-lang/python:          2.7.7, 3.3.5-r1
dev-util/cmake:           2.8.12.2-r1
dev-util/pkgconfig:       0.28-r1
sys-apps/baselayout:      2.2
sys-apps/openrc:          0.12.4
sys-apps/sandbox:         2.6-r1
sys-devel/autoconf:       2.13, 2.69
sys-devel/automake:       1.11.6, 1.12.6, 1.13.4
sys-devel/binutils:       2.23.2
sys-devel/gcc:            4.7.3-r1
sys-devel/gcc-config:     1.7.3
sys-devel/libtool:        2.4.2-r1
sys-devel/make:           3.82-r4
sys-kernel/linux-headers: 3.13 (virtual/os-headers)
sys-libs/glibc:           2.19-r1
Repositories: gentoo java steam-overlay luksan-overlay
ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="*"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O2 -pipe -march=corei7-avx -ggdb"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /usr/share/themes/oxygen-gtk/gtk-2.0 /usr/share/themes/oxygen-gtk/gtk-3.0"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c"
CXXFLAGS="-O2 -pipe -march=corei7-avx -ggdb"
DISTDIR="/disk/portage/distfiles"
EMERGE_DEFAULT_OPTS="--jobs=16 --load-average=8"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch parallel-install preserve-libs protect-owned sandbox sfperms splitdebug strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://ftp.df.lth.se/pub/gentoo/ http://mirror.mdfnet.se/gentoo"
LANG="en_US.UTF-8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j8"
PKGDIR="/disk/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_EXTRA_OPTS="-q"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/var/lib/layman/java /var/lib/layman/steam /home/lukas/Projects/luksan-overlay"
USE="3dnow 3dnowext X a52 aac acl acpi alsa amd64 avx avx2 berkdb bluetooth branding bzip2 cairo cdda cdr cli consolekit cracklib crypt cxx dbus declarative dri dts dvd dvdr emboss encode exif fam firefox flac fortran gdbm gif glamor gpm gtk iconv icu jpeg kde kipi lcms libnotify mad mmx mmxext mng modules mp3 mp4 mpeg multilib ncurses networkmanager nls nptl ogg opengl openmp opus pam pango pcre pdf phonon plasma png policykit ppds qt3support qt4 readline sdl semantic-desktop session spell sse sse2 sse3 sse4_1 ssl ssse3 startup-notification svg tcpd tiff truetype udev udisks unicode upower usb vdpau vorbis wxwidgets x264 xcb xcomposite xinerama xml xscreensaver xv xvid zlib" ABI_X86="64" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" DVB_CARDS="usb-dib0700 dibusb-usb2" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en sv sv_SE" LIRC_DEVICES="devinput" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_3" QEMU_SOFTMMU_TARGETS="sparc x86_64" RUBY_TARGETS="ruby19 ruby20" USERLAND="GNU" VIDEO_CARDS="intel nouveau nvidia" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account"
USE_PYTHON="2.7 3.3"
Unset:  CPPFLAGS, CTARGET, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, SYNC
Comment 1 renato gallo 2014-11-10 21:20:15 UTC
after the patch it still segfaults


(gdb) exec /usr/bin/nut-scanner
(gdb) 
(gdb) run
Starting program: /usr/bin/nut-scanner 
warning: Could not load shared library symbols for linux-vdso.so.1.
Do you need "set solib-search-path" or "set sysroot"?
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Cannot load USB library (libusb-0.1) : file not found. USB search disabled.

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff74121db in ?? () from /usr/lib64/libltdl.so.7
Comment 2 Matthew Thode ( prometheanfire ) archtester Gentoo Infrastructure gentoo-dev Security 2015-01-13 05:05:59 UTC
can you try 2.7.2?