The Exploit (http://blog.zx2c4.com/749 and http://git.zx2c4.com/CVE-2012-0056/) is still working after proc-clean-up-and-fix-proc-pid-mem-handling.patch (in sys-kernel/gentoo-sources-3.2.1-r1). Tested on Linux 3.2.1-gentoo-r1 #1 SMP Tue Jan 24 07:44:01 CET 2012 x86_64 Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz GenuineIntel GNU/Linux and Linux 3.2.1-gentoo-r1 #1 SMP Tue Jan 24 07:57:21 CET 2012 i686 Intel(R) Pentium(R) 4 CPU 3.00GHz GenuineIntel GNU/Linux. Reproducible: Always emerge --info Portage 2.1.10.44 (default/linux/amd64/10.0/desktop/kde, gcc-4.5.3, glibc-2.14.1-r2, 3.2.1-gentoo-r1 x86_64) ================================================================= System uname: Linux-3.2.1-gentoo-r1-x86_64-Intel-R-_Core-TM-_i7-2600_CPU_@_3.40GHz-with-gentoo-2.1 Timestamp of tree: Tue, 24 Jan 2012 07:30:01 +0000 ccache version 3.1.7 [enabled] app-shells/bash: 4.2_p20 dev-java/java-config: 2.1.11-r3 dev-lang/python: 2.7.2-r3, 3.2.2 dev-util/ccache: 3.1.7 dev-util/pkgconfig: 0.26 sys-apps/baselayout: 2.1 sys-apps/openrc: 0.9.8.1 sys-apps/sandbox: 2.5 sys-devel/autoconf: 2.13, 2.68 sys-devel/automake: 1.11.2-r1 sys-devel/binutils: 2.22-r1 sys-devel/gcc: 4.5.3-r2 sys-devel/gcc-config: 1.5-r2 sys-devel/libtool: 2.4.2 sys-devel/make: 3.82-r3 sys-kernel/linux-headers: 3.2 (virtual/os-headers) sys-libs/glibc: 2.14.1-r2 Repositories: gentoo pear-ath-cx ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -march=core2 -mtune=generic -pipe -msse4.1" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /usr/share/openvpn/easy-rsa" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-O2 -march=core2 -mtune=generic -pipe -msse4.1" DISTDIR="/usr/portage/distfiles" EMERGE_DEFAULT_OPTS="--keep-going=y --quiet-build=y" FEATURES="assume-digests binpkg-logs ccache distlocks ebuild-locks fixlafiles news parallel-fetch protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch" FFLAGS="" GENTOO_MIRRORS="ftp://portage1.gfs" LANG="de_DE.UTF-8" LC_ALL="de_DE.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" LINGUAS="de" MAKEOPTS="-j9" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/overlays/pear.ath.cx" SYNC="rsync://portage1.gfs/gentoo-portage" USE="X a52 aac acl acpi alsa amd64 ao apng berkdb bluetooth branding bzip2 cairo cdda cddb cdr cli consolekit cracklib crypt cue cups cxx dbus declarative dga dri dts dv dvd dvdr emboss encode exif expat fam ffmpeg firefox flac fontconfig fortran gd gdbm gdu gif gimp gmp gnutls gphoto2 gpm gtk iconv idn imagemagick ipv6 jack java jpeg jpeg2k kde kipi ladspa lame lcms ldap libnotify lzo mad mjpeg mmx mmxext mng modules mp3 mp4 mpeg mudflap multilib musicbrainz ncurses network nls nptl nptlonly nsplugin ogg openexr opengl openmp pam pango pcre pdf phonon plasma png policykit ppds pppd qt3support qt4 quicktime readline samba scp sdl semantic-desktop session sftp slang smp speex spell sse sse2 sse3 ssl ssse3 startup-notification svg symlink sysfs tcpd theora threads tiff truetype udev unicode usb v4l2 vaapi vcd vhosts vorbis webkit x264 xcb xcomposite xine xinerama xml xorg xpm xscreensaver xulrunner xv xvid xvmc zlib" 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" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias asis auth_basic auth_digest authn_alias authn_anon authn_dbd authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cern_meta cgi cgid charset_lite dav dav_fs dav_lock dbd deflate dir disk_cache dumpio env expires ext_filter file_cache filter headers ident imagemap include info log_config log_forensic logio mem_cache mime mime_magic negotiation proxy proxy_ajp proxy_balancer proxy_connect proxy_ftp proxy_http reqtimeout rewrite setenvif speling status substitute unique_id userdir usertrack version vhost_alias" APACHE2_MPMS="worker" CALLIGRA_FEATURES="kexi words flow plan stage tables krita karbon braindump" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" 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 ubx" INPUT_DEVICES="evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="de" PHP_TARGETS="php5-3" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="intel" 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: CPPFLAGS, CTARGET, INSTALL_MASK, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
*** This bug has been marked as a duplicate of bug 399243 ***
