Bug 443144 – media-gfx/sane-backends : _FORTIFY_SOURCE reports presence of overflows

• Product: Gentoo Linux
• Status: RESOLVED WONTFIX

[Description Agostino Sarubbo 2012-11-14 20:12:47 UTC]

Created attachment 329556 [details]
build.log

Portage 2.1.11.31 (default/linux/amd64/10.0, gcc-4.5.4, glibc-2.15-r3, 3.2.30-hardened x86_64)
=================================================================
System uname: Linux-3.2.30-hardened-x86_64-Intel-R-_Core-TM-_i3_CPU_540_@_3.07GHz-with-gentoo-2.1
Timestamp of tree: Wed, 14 Nov 2012 11:00:01 +0000
ld GNU ld (GNU Binutils) 2.22
app-shells/bash:          4.2_p37
dev-java/java-config:     2.1.11-r3
dev-lang/python:          2.7.3-r2, 3.2.3
dev-util/cmake:           2.8.9
dev-util/pkgconfig:       0.27.1
sys-apps/baselayout:      2.1-r1
sys-apps/openrc:          0.9.8.4
sys-apps/sandbox:         2.5
sys-devel/autoconf:       2.13, 2.68
sys-devel/automake:       1.11.6
sys-devel/binutils:       2.22-r1
sys-devel/gcc:            4.5.4
sys-devel/gcc-config:     1.7.3
sys-devel/libtool:        2.4-r1
sys-devel/make:           3.82-r3
sys-kernel/linux-headers: 3.4-r2 (virtual/os-headers)
sys-libs/glibc:           2.15-r3
Repositories: gentoo ago x-portage
ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="*"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=native -O2 -g0"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /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 -O2"
DISTDIR="/media/sources/"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-logs collision-protect config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync multilib-strict news parallel-fetch protect-owned sandbox sfperms split-log strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://distfiles.gentoo.org"
LANG="it_IT.UTF-8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,--hash-style=gnu"
LINGUAS="am fil zh af ca cs da de el es et gl hu nb nl pl pt ro ru sk sl sv uk bg cy en eo fo ga he id ku lt lv mk ms nn sw tn zu ja zh_TW en_GB pt_BR ko zh_CN ar en_CA fi kk oc sr tr fa wa nds as be bn bn_BD bn_IN en_US es_AR es_CL es_ES es_MX eu fy fy_NL ga_IE gu gu_IN hi hi_IN is ka kn ml mr nn_NO or pa pa_IN pt_PT rm si sq sv_SE ta ta_LK te th vi ast dz km my om sh ug uz ca@valencia sr@ijekavian sr@ijekavianlatin sr@latin csb hne mai se es_LA fr_CA zh_HK br la no es_CR et_EE sr_CS bo hsb hy mn sr@Latn lb ne bs tg uz@cyrillic xh be_BY brx ca_XV dgo en_ZA gd kok ks ky lo mni nr ns pap ps rw sa_IN sat sd ss st sw_TZ ti ts ve mt ia az me tl ak hy_AM lg nso son ur_PK it fr nb nb_NO hr nan ur tk cs_CZ da_DK de_1901 de_CH en_AU lt_LT pl_PL sa sk_SK th_TH ta_IN tt sco ha mi ven ar_SY el_GR ro_RO ru_RU sl_SI uk_UA vi_VN ar_SY te_IN de_DE es_VE fa_IR fr_FR hu_HU id_ID it_IT ja_JP ka_GE nl_NL sr_BA sr_RS ca_ES fi_FI he_IL jv ru_gold yi eu_ES"
MAKEOPTS="-j4"
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="/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/var/lib/layman/ago /usr/local/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="X acl alsa amd64 berkdb bzip2 cli consolekit cracklib crypt cups cxx dbus dri fortran gdbm gpm iconv kde minizip mmx modules mp3 mudflap multilib ncurses nls nptl opengl openmp pam pcre policykit pppd qt3support qt4 readline session sse sse2 ssl tcpd unicode zlib" ALSA_CARDS="hda-intel" 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" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="am fil zh af ca cs da de el es et gl hu nb nl pl pt ro ru sk sl sv uk bg cy en eo fo ga he id ku lt lv mk ms nn sw tn zu ja zh_TW en_GB pt_BR ko zh_CN ar en_CA fi kk oc sr tr fa wa nds as be bn bn_BD bn_IN en_US es_AR es_CL es_ES es_MX eu fy fy_NL ga_IE gu gu_IN hi hi_IN is ka kn ml mr nn_NO or pa pa_IN pt_PT rm si sq sv_SE ta ta_LK te th vi ast dz km my om sh ug uz ca@valencia sr@ijekavian sr@ijekavianlatin sr@latin csb hne mai se es_LA fr_CA zh_HK br la no es_CR et_EE sr_CS bo hsb hy mn sr@Latn lb ne bs tg uz@cyrillic xh be_BY brx ca_XV dgo en_ZA gd kok ks ky lo mni nr ns pap ps rw sa_IN sat sd ss st sw_TZ ti ts ve mt ia az me tl ak hy_AM lg nso son ur_PK it fr nb nb_NO hr nan ur tk cs_CZ da_DK de_1901 de_CH en_AU lt_LT pl_PL sa sk_SK th_TH ta_IN tt sco ha mi ven ar_SY el_GR ro_RO ru_RU sl_SI uk_UA vi_VN ar_SY te_IN de_DE es_VE fa_IR fr_FR hu_HU id_ID it_IT ja_JP ka_GE nl_NL sr_BA sr_RS ca_ES fi_FI he_IL jv ru_gold yi eu_ES" NGINX_MODULES_HTTP="access auth_basic autoindex browser charset empty_gif fastcgi geo gzip limit_req limit_zone map memcached proxy referer rewrite scgi split_clients ssi upstream_ip_hash userid uwsgi addition cache_purge dav degradation flv geoip gzip_static headers_more image_filter perl push random_index realip secure_link stub_status sub xslt ey_balancer slowfs_cache upload" NGINX_MODULES_MAIL="imap pop3 smtp" PHP_TARGETS="php5-3 php5-4" PYTHON_TARGETS="python2_7 python3_2" QEMU_SOFTMMU_TARGETS="i386 x86_64" QEMU_USER_TARGETS="i386 x86_64" RUBY_TARGETS="ree18 ruby18 ruby19" USERLAND="GNU" VIDEO_CARDS="nouveau"
USE_PYTHON="2.7 3.2"
Unset:  CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS

[Comment 1 Patrick Kursawe (RETIRED) 2013-02-01 11:50:58 UTC]

Do you mean these lines?
/usr/include/bits/string3.h:152:3: warning: call to __builtin___strncat_chk might overflow destination buffer

That's harmless. Looking at the code, I think that the destination buffer is sufficiently large for all possible input values. Please re-open if you don't agree.