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Bug 422467 - sys-kernel/hardened-sources-3.4.3 fails "strict copy size checks"
Summary: sys-kernel/hardened-sources-3.4.3 fails "strict copy size checks"
Status: RESOLVED WONTFIX
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: [OLD] Core system (show other bugs)
Hardware: AMD64 Linux
: Normal normal
Assignee: The Gentoo Linux Hardened Kernel Team (OBSOLETE)
URL:
Whiteboard:
Keywords:
: 422885 (view as bug list)
Depends on:
Blocks:
 
Reported: 2012-06-19 20:14 UTC by Graham Murray
Modified: 2012-06-21 19:49 UTC (History)
3 users (show)

See Also:
Package list:
Runtime testing required: ---


Attachments
Kernel Configuration (.config,73.46 KB, text/plain)
2012-06-19 20:14 UTC, Graham Murray
Details

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Description Graham Murray 2012-06-19 20:14:27 UTC
Created attachment 315803 [details]
Kernel Configuration

CC      arch/x86/kernel/tls.o
In file included from /usr/src/linux-3.4.3-hardened/arch/x86/include/asm/uaccess.h:638:0,
                 from include/linux/uaccess.h:5,
                 from include/linux/regset.h:19,
                 from arch/x86/kernel/tls.c:5:
In function ‘__copy_from_user’,
    inlined from ‘regset_tls_set’ at arch/x86/kernel/tls.c:212:27:
/usr/src/linux-3.4.3-hardened/arch/x86/include/asm/uaccess_64.h:110:26: error: call to ‘copy_from_user_overflow’ declared with attribute error: copy_from_user() buffer size is not provably correct
make[2]: *** [arch/x86/kernel/tls.o] Error 1
make[1]: *** [arch/x86/kernel] Error 2
make: *** [arch/x86] Error 2

emerge --info
Portage 2.2.0_alpha110 (hardened/linux/amd64, gcc-4.6.3, glibc-2.15-r2, 3.4.2-hardened x86_64)
=================================================================
System uname: Linux-3.4.2-hardened-x86_64-Intel-R-_Core-TM-_i5-2320_CPU_@_3.00GHz-with-gentoo-2.1
Timestamp of tree: Tue, 19 Jun 2012 17:45:01 +0000
app-shells/bash:          4.2_p29
dev-java/java-config:     2.1.12
dev-lang/python:          2.7.3-r2, 3.2.3-r1
dev-util/cmake:           2.8.8-r3
dev-util/pkgconfig:       0.26
sys-apps/baselayout:      2.1-r1
sys-apps/openrc:          0.10.3
sys-apps/sandbox:         2.5
sys-devel/autoconf:       2.13, 2.69
sys-devel/automake:       1.11.5, 1.12.1
sys-devel/binutils:       2.22-r1
sys-devel/gcc:            4.5.3-r2, 4.6.3
sys-devel/gcc-config:     1.7.3
sys-devel/libtool:        2.4.2
sys-devel/make:           3.82-r3
sys-kernel/linux-headers: 3.4 (virtual/os-headers)
sys-libs/glibc:           2.15-r2
Repositories: gentoo raw betagarden
Installed sets: 
ACCEPT_KEYWORDS="amd64 ~amd64"
ACCEPT_LICENSE="*"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=native -mtune=native -O2 -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /usr/share/openvpn/easy-rsa /var/bind"
CONFIG_PROTECT_MASK="${EPREFIX}/etc/gconf /etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/games/angband/edit/ /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.4/ext-active/ /etc/php/cgi-php5.4/ext-active/ /etc/php/cli-php5.4/ext-active/ /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="-march=native -mtune=native -O2 -pipe"
DISTDIR="/usr/portage/distfiles"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-logs buildpkg config-protect-if-modified distlocks ebuild-locks fixlafiles news parallel-fetch parse-eapi-ebuild-head preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch xattr"
FFLAGS="-march=native -mtune=native -O2 -pipe"
GENTOO_MIRRORS="http://mirrors.linuxant.fr/distfiles.gentoo.org/ http://mirror.qubenet.net/mirror/gentoo/ http://www.mirrorservice.org/sites/www.ibiblio.org/gentoo/ ftp://mirrors.linuxant.fr/distfiles.gentoo.org/ ftp://mirror.qubenet.net/mirror/gentoo/"
LANG="en_GB.UTF-8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
LINGUAS="en_GB en fr"
MAKEOPTS="-j5"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --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/raw /var/lib/layman/betagarden"
SYNC="rsync://rsync.uk.gentoo.org/gentoo-portage"
USE="X a52 aac acl alsa amd64 apache2 berkdb branding bzip2 cairo caps cdda cddb cli cracklib crypt cups cxx dbus doc dri dts dvd emacs encode examples exif fam ffmpeg flac fortran gd gdbm gif gnome gnome-keyring gnutls gpm gstreamer gtk hardened iconv icu ipv6 java jpeg jpeg2k justify kde lcms libnotify lua lzma mad matroska milter mmx mng modules mp3 mpeg mudflap multilib mysql ncurses nls nptl nsplugin ogg opengl openmp pam pax_kernel pcre perl pfd png policykit postgres ppds pppd pulseaudio python qt4 readline sdl semantic-desktop session speex spell sqlite sqlite3 sse sse2 sse3 ssl ssse3 startup-notification svg tcpd theora threads tiff tk truetype udev unicode urandom usb vim-syntax vorbis x264 xattr xcb xml xorg xv xvid 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 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" 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="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_GB en fr" PHP_TARGETS="php5-3" PYTHON_TARGETS="python3_2 python2_7" RUBY_TARGETS="ruby18 ruby19" USERLAND="GNU" VIDEO_CARDS="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:  CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON
Comment 1 PaX Team 2012-06-20 17:50:07 UTC
don't enable CONFIG_DEBUG_STRICT_USER_COPY_CHECKS unless you also ensure there're no uncovered cases. we're definitely not there yet so for now you get to live with the warnings (and have an idea about what code to audit for potential problems ;). there's is also some interference from the size overflow plugin that we'll have to work out.
Comment 2 Jory A. Pratt gentoo-dev 2012-06-21 19:49:57 UTC
*** Bug 422885 has been marked as a duplicate of this bug. ***