Bug 575428 – app-emulation/xen-tools-4.6.1: fails to boot when kernel is compiled with CONFIG_CC_STACKPROTECTOR_STRONG

• Product: Gentoo Linux
• Status: UNCONFIRMED ---

[Description cyberbat 2016-02-23 06:28:45 UTC]

Created attachment 426282 [details]
my kernel config

I use hardened system, but I'm not sure that issue exists only on hardened. If I set
CONFIG_CC_STACKPROTECTOR_STRONG 
in kernel config my dom0 stops booting.

I attach my working kernel config. Please change 
CONFIG_CC_STACKPROTECTOR_REGULAR=y
# CONFIG_CC_STACKPROTECTOR_STRONG is not set
to

CONFIG_CC_STACKPROTECTOR_STRONG=y

to make it stop working with xen.

emerge --info
Portage 2.2.26 (python 3.4.3-final-0, hardened/linux/amd64, gcc-4.9.3, glibc-2.21-r2, 4.3.5-hardened-r2 x86_64)
=================================================================
System uname: Linux-4.3.5-hardened-r2-x86_64-Intel-R-_Core-TM-_i7-4770_CPU_@_3.40GHz-with-gentoo-2.2
KiB Mem:     4028220 total,   3658096 free
KiB Swap:   33554428 total,  33554428 free
Timestamp of repository gentoo: Mon, 22 Feb 2016 19:30:01 +0000
sh bash 4.3_p42-r1
ld GNU ld (Gentoo 2.25.1 p1.1) 2.25.1
app-shells/bash:          4.3_p42-r1::gentoo
dev-lang/perl:            5.20.2::gentoo
dev-lang/python:          2.7.10-r1::gentoo, 3.4.3-r1::gentoo
dev-util/pkgconfig:       0.28-r2::gentoo
sys-apps/baselayout:      2.2::gentoo
sys-apps/openrc:          0.19.1::gentoo
sys-apps/sandbox:         2.10-r1::gentoo
sys-devel/autoconf:       2.69::gentoo
sys-devel/automake:       1.13.4::gentoo, 1.14.1::gentoo, 1.15::gentoo
sys-devel/binutils:       2.25.1-r1::gentoo
sys-devel/gcc:            4.8.4::gentoo, 4.9.3::gentoo
sys-devel/gcc-config:     1.7.3::gentoo
sys-devel/libtool:        2.4.6::gentoo
sys-devel/make:           4.1-r1::gentoo
sys-kernel/linux-headers: 4.3::gentoo (virtual/os-headers)
sys-libs/glibc:           2.21-r2::gentoo
Repositories:

gentoo
    location: /usr/portage
    sync-type: rsync
    sync-uri: rsync://rsync.gentoo.org/gentoo-portage
    priority: -1000

mylay
    location: /var/portage/mylay
    masters: gentoo
    priority: 0

ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="* -@EULA"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O2 -pipe -mtune=native"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-O2 -pipe -mtune=native"
DISTDIR="/var/portage/distfiles"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="ftp://ftp.uni-erlangen.de/pub/mirrors/gentoo"
LANG="en_US.utf8"
LDFLAGS="-Wl,--hash-style=gnu -Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j8"
PKGDIR="/var/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"
PORTAGE_TMPDIR="/var/tmp"
USE="acl amd64 bash-completion berkdb bzip2 caps cli cracklib crypt cxx device-mapper dri gdbm gmp gnutls hardened iconv icu idn ipv6 justify mmx mmxext modules multilib ncurses nls nptl openmp pam pax_kernel pcre pie readline seccomp session sse sse2 ssl ssp ssse3 unicode urandom vim-syntax xattr xtpax 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" CPU_FLAGS_X86="aes avx avx2 fma3 mmx mmxext popcnt sse sse2 sse3 sse4_1 sse4_2 ssse3" 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 ru" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_4" RUBY_TARGETS="ruby20 ruby21" USERLAND="GNU" VIDEO_CARDS="fbdev glint intel mach64 mga nouveau nv r128 radeon savage sis tdfx trident vesa via vmware dummy v4l" 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"
Unset:  CC, CPPFLAGS, CTARGET, CXX, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS

[Comment 1 Tomáš Mózes 2016-02-23 06:39:45 UTC]

I don't think it's necessary to use hardened on dom0.

If you follow the basic rules, you are mostly ok:
- up2date kernel + @world
- firewall
- no rubbish services running

[Comment 2 sango 2016-02-23 11:45:11 UTC]

i don have hardened options, but i have troubles with booting xen too.

boot log http://paste.org.ru/index.pl?ypowrt
.config https://bpaste.net/show/dd4aed703423
emerge --info https://bpaste.net/show/cb6445b3bb70

[Comment 3 sango 2016-02-23 12:18:24 UTC]

seems my issue fixed after kernel update to 4.4.2...