When I issue `sudo -u someuser kill -9 -1` I'm getting segfault. Reproducible: Always Here is backtrace: # sudo -u marcin gdb -q kill Reading symbols from kill...Reading symbols from /usr/lib64/debug//bin/kill.debug...done. done. (gdb) set args -9 -1 (gdb) run Starting program: /bin/kill -9 -1 Program received signal SIGSEGV, Segmentation fault. __GI_____strtol_l_internal (nptr=0x0, endptr=endptr@entry=0x0, base=base@entry=10, group=group@entry=0, loc=0x7ffff7dd53e0 <_nl_global_locale>) at ../stdlib/strtol_l.c:293 293 ../stdlib/strtol_l.c: Nie ma takiego pliku ani katalogu. (gdb) bt #0 __GI_____strtol_l_internal (nptr=0x0, endptr=endptr@entry=0x0, base=base@entry=10, group=group@entry=0, loc=0x7ffff7dd53e0 <_nl_global_locale>) at ../stdlib/strtol_l.c:293 #1 0x00007ffff7a7aca2 in __strtol (nptr=<optimized out>, endptr=endptr@entry=0x0, base=base@entry=10) at ../stdlib/strtol.c:106 #2 0x0000000000402104 in atoi (__nptr=<optimized out>) at /usr/include/stdlib.h:241 #3 kill_main (argv=0x7fffffffe448, argc=<optimized out>) at skill.c:482 #4 main (argc=3, argv=0x7fffffffe448) at skill.c:752 (gdb) bt full #0 __GI_____strtol_l_internal (nptr=0x0, endptr=endptr@entry=0x0, base=base@entry=10, group=group@entry=0, loc=0x7ffff7dd53e0 <_nl_global_locale>) at ../stdlib/strtol_l.c:293 negative = <optimized out> cutoff = <optimized out> cutlim = <optimized out> i = <optimized out> s = 0x0 c = <optimized out> save = <optimized out> end = <optimized out> overflow = <optimized out> cnt = <optimized out> current = <optimized out> thousands = 0x0 thousands_len = 0 grouping = 0x0 #1 0x00007ffff7a7aca2 in __strtol (nptr=<optimized out>, endptr=endptr@entry=0x0, base=base@entry=10) at ../stdlib/strtol.c:106 No locals. #2 0x0000000000402104 in atoi (__nptr=<optimized out>) at /usr/include/stdlib.h:241 No locals. #3 kill_main (argv=0x7fffffffe448, argc=<optimized out>) at skill.c:482 i = <optimized out> loop = 1 pid = <optimized out> exitvalue = 0 longopts = {{name = 0x403849 "list", has_arg = 2, flag = 0x0, val = 108}, {name = 0x403936 "table", has_arg = 0, flag = 0x0, val = 76}, {name = 0x40393c "signal", has_arg = 1, flag = 0x0, val = 115}, {name = 0x403943 "help", has_arg = 0, flag = 0x0, val = 104}, {name = 0x403948 "version", has_arg = 0, flag = 0x0, val = 86}, {name = 0x0, has_arg = 0, flag = 0x0, val = 0}} signo = 9 longopts = {{name = 0x403849 "list", has_arg = 2, flag = 0x0, val = 108}, {name = 0x403936 "table", has_arg = 0, flag = 0x0, val = 76}, {name = 0x40393c "signal", has_arg = 1, flag = 0x0, val = 115}, {name = 0x403943 "help", has_arg = 0, flag = 0x0, val = 104}, {name = 0x403948 "version", has_arg = 0, flag = 0x0, val = 86}, {name = 0x0, has_arg = 0, flag = 0x0, val = 0}} #4 main (argc=3, argv=0x7fffffffe448) at skill.c:752 run_time = {fast = 0, interactive = 0, verbose = 0, warnings = 0, noaction = 0, debugging = 0} (gdb) # emerge --info Portage 2.3.6 (python 3.4.6-final-0, default/linux/amd64/13.0/desktop/plasma, gcc-6.3.0, glibc-2.24-r3, 4.11.0-bcache+ x86_64) ================================================================= System uname: Linux-4.11.0-bcache+-x86_64-Intel-R-_Core-TM-2_Quad_CPU_Q6600_@_2.40GHz-with-gentoo-2.4.1 Timestamp of repository gentoo: Fri, 14 Jul 2017 06:00:01 +0000 sh bash 4.4_p12 ld GNU gold (Gentoo 2.28 p1.2 2.28) 1.14 ccache version 3.3.4 [enabled] app-shells/bash: 4.4_p12::gentoo dev-java/java-config: 2.2.0-r3::gentoo dev-lang/perl: 5.24.1-r2::gentoo dev-lang/python: 2.7.13::gentoo, 3.4.6::gentoo dev-util/ccache: 3.3.4::gentoo dev-util/cmake: 3.8.2::gentoo dev-util/pkgconfig: 0.29.2::gentoo sys-apps/baselayout: 2.4.1::gentoo sys-apps/openrc: 0.28::gentoo sys-apps/sandbox: 2.10-r4::gentoo sys-devel/autoconf: 2.13::gentoo, 2.69-r3::gentoo sys-devel/automake: 1.15.1::gentoo sys-devel/binutils: 2.28-r2::gentoo sys-devel/gcc: 6.3.0::gentoo sys-devel/gcc-config: 1.8-r1::gentoo sys-devel/libtool: 2.4.6-r4::gentoo sys-devel/make: 4.2.1-r1::gentoo sys-kernel/linux-headers: 4.10::gentoo (virtual/os-headers) sys-libs/glibc: 2.24-r3::gentoo Repositories: gentoo location: /usr/portage sync-type: rsync sync-uri: rsync://192.168.138.254/gentoo-portage priority: -1000 ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -march=native -pipe -fpeel-loops -fuse-linker-plugin -fuse-ld=bfd -fvar-tracking-assignments -g" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/lib64/libreoffice/program/sofficerc /usr/share/config /usr/share/gnupg/qualified.txt" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-O2 -march=native -pipe -fpeel-loops -fuse-linker-plugin -fuse-ld=bfd -fvar-tracking-assignments -g" DISTDIR="/usr/portage/distfiles" FCFLAGS="-O2 -march=native -pipe -fpeel-loops -fuse-linker-plugin -fuse-ld=bfd -fvar-tracking-assignments -g" FEATURES="assume-digests binpkg-logs ccache cgroup collision-protect compressdebug config-protect-if-modified distlocks downgrade-backup ebuild-locks fixlafiles news parallel-fetch parallel-install preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-O2 -march=native -pipe -fpeel-loops -fuse-linker-plugin -fuse-ld=bfd -fvar-tracking-assignments -g" GENTOO_MIRRORS="http://distfiles.gentoo.org" LDFLAGS="-Wl,-O1 -Wl,--as-needed -z relro -Wl,--sort-common -O2 -march=native -pipe -fpeel-loops -fuse-linker-plugin -fuse-ld=bfd -fvar-tracking-assignments -g" MAKEOPTS="-j3 -l4" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" 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 --exclude=/.git" PORTAGE_TMPDIR="/var/tmp" USE="X a52 aac acl acpi aio alsa amd64 apm async bash-completion bittorrent branding bzip2 cairo caps cdda cdr chroot cli consolekit crypt cups cxx dbus declarative dmx dri dvd dvdr emboss encode exif fam firefox ftp gif glamor glibc-omitfp gpl gpm iconv idn iproute2 ipv6 ithreads jit jpeg kde kipi kwallet laptop lcms libnotify lightning logrotate mad mmap mng modules mp3 mp4 mpeg multilib ncurses network-cron nls nptl nsplugin nspluginwrapper objc ogg opengl openmp openssl optimization optimized-qmake pam pango pcre pdf phonon plasma png policykit ppds python3 qml qt3support qt4 qt5 readline samba sdl seccomp semantic-desktop session sharedmem smp spell ssl startup-notification svg threads threadsafe tiff tools truetype udev udisks unicode unwind upower urandom usb vim vim-pager vim-syntax vorbis widgets wxwidgets x264 xattr xcb xcomposite xinerama xml xscreensaver xv xvid zip zlib" ABI_X86="32 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="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 cgid dav dbd deflate dir env expires ext_filter filter headers include info log_config logio mime mime_magic negotiation rewrite setenvif speling status unique_id usertrack vhost_alias" APACHE2_MPMS="worker" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="mmx mmxext sse sse2 sse3 ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock isync itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="evdev" KERNEL="linux" L10N="pl en" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="pl en" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-6" POSTGRES_TARGETS="postgres9_5" PYTHON_SINGLE_TARGET="python3_4" PYTHON_TARGETS="python2_7 python3_4" RUBY_TARGETS="ruby24" USERLAND="GNU" VIDEO_CARDS="nvidia fbdev nouveau" 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" Unset: CC, CPPFLAGS, CTARGET, CXX, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON
If this is still happening, please report it upstream and share the link here.
