Created attachment 850310 [details] build.log >>>> Configuring source in /var/tmp/portage/sys-apps/busybox-1.34.1-r1/work/busybox-1.34.1 ... [WW] Could not locate user configfile, so we will save a default one make -j32 -l32 -j1 -s allyesconfig SKIP_SELINUX=y *** buffer overflow detected ***: terminated Aborted (core dumped) make[1]: *** [scripts/Makefile.host:104: scripts/basic/docproc] Error 134 make: *** [Makefile:357: scripts_basic] Error 2 [EE] ERROR: sys-apps/busybox-1.34.1-r1::gentoo failed (configure phase): [EE] emake failed ---- Portage 3.0.44 (python 3.11.2-final-0, default/linux/amd64/17.1/hardened, gcc-13, glibc-2.37, 6.1.10-gentoo-dist-hardened x86_64) ================================================================= System uname: Linux-6.1.10-gentoo-dist-hardened-x86_64-AMD_Ryzen_9_3950X_16-Core_Processor-with-glibc2.37 KiB Mem: 65758024 total, 7356000 free KiB Swap: 8290300 total, 7634684 free Timestamp of repository gentoo: Fri, 10 Feb 2023 01:17:02 +0000 Head commit of repository gentoo: d539fcbd5ec12c2943ccf86dc19073d59ff0e713 Timestamp of repository emacs: Mon, 30 Jan 2023 17:48:16 +0000 Head commit of repository emacs: 225ac79e9d8f56f7524de5c71befcb1fc81d7be3 Timestamp of repository kde: Thu, 09 Feb 2023 18:47:23 +0000 Head commit of repository kde: 1bc6726cee93ac55f05db4492c7b7e54edcb1adc Timestamp of repository qt: Wed, 08 Feb 2023 19:47:12 +0000 Head commit of repository qt: 2cb2e8cc0f97bd64c3c785b67818bb0c68d7e4df Timestamp of repository sam_c: Tue, 07 Feb 2023 14:47:46 +0000 Head commit of repository sam_c: f774d7a01d403edde0659bc2ba1c80d55a62151a Timestamp of repository steam-overlay: Tue, 07 Feb 2023 14:47:33 +0000 Head commit of repository steam-overlay: 8121a25bc99056e35ab2dd7924bb01ad8f80df8d sh dash 0.5.12 ld GNU ld (Gentoo 2.40 p2) 2.40.0 ccache version 4.7.4 [disabled] app-misc/pax-utils: 1.3.7::gentoo app-shells/bash: 5.2_p15-r2::gentoo dev-java/java-config: 2.3.1::gentoo dev-lang/perl: 5.36.0-r2::gentoo dev-lang/python: 3.9.16-r1::gentoo, 3.10.10::gentoo, 3.11.2::gentoo, 3.12.0_alpha5::gentoo dev-lang/rust: 1.67.1::gentoo dev-util/ccache: 4.7.4::gentoo dev-util/cmake: 3.26.0_rc1::gentoo dev-util/meson: 1.0.0::gentoo sys-apps/baselayout: 2.13-r1::gentoo sys-apps/sandbox: 2.30-r1::gentoo sys-apps/systemd: 252.5::gentoo sys-devel/autoconf: 2.13-r7::gentoo, 2.69-r8::gentoo, 2.71-r5::gentoo, 9999::gentoo sys-devel/automake: 1.16.5::gentoo sys-devel/binutils: 2.40-r1::gentoo sys-devel/binutils-config: 5.5::gentoo sys-devel/clang: 15.0.7-r1::gentoo, 16.0.0_rc2::gentoo, 17.0.0_pre20230203::gentoo sys-devel/gcc: 10.4.1_p20230202::gentoo, 11.3.1_p20230203::gentoo, 12.2.1_p20230204-r1::gentoo, 13.0.1_pre20230205-r1::gentoo sys-devel/gcc-config: 2.10::gentoo sys-devel/libtool: 2.4.7-r1::gentoo sys-devel/lld: 17.0.0_pre20230203::gentoo sys-devel/llvm: 14.0.6-r2::gentoo, 15.0.7::gentoo, 16.0.0_rc2::gentoo, 17.0.0_pre20230203::gentoo sys-devel/make: 4.4.0.90::gentoo sys-kernel/linux-headers: 6.1::gentoo (virtual/os-headers) sys-libs/glibc: 2.37::gentoo Repositories: gentoo location: /var/db/repos/gentoo sync-type: git sync-uri: https://github.com/gentoo-mirror/gentoo.git priority: -1000 eclass-overrides: sam_c volatile: True sync-git-clone-extra-opts: -b stable -c gc.reflogExpire=0 -c gc.reflogExpireUnreachable=0 -c gc.rerereresolved=0 -c gc.rerereunresolved=0 -c gc.pruneExpire=now sync-git-verify-commit-signature: yes crossdev location: /var/db/repos/crossdev masters: gentoo eclass-overrides: sam_c volatile: True emacs location: /var/db/repos/emacs sync-type: git sync-uri: https://github.com/gentoo-mirror/emacs.git masters: gentoo eclass-overrides: sam_c volatile: True kde location: /var/db/repos/kde sync-type: git sync-uri: https://github.com/gentoo-mirror/kde.git masters: gentoo eclass-overrides: sam_c volatile: True local location: /var/db/repos/local masters: gentoo eclass-overrides: sam_c volatile: True qt location: /var/db/repos/qt sync-type: git sync-uri: https://github.com/gentoo-mirror/qt.git masters: gentoo eclass-overrides: sam_c volatile: True sam_c location: /var/db/repos/sam_c sync-type: git sync-uri: https://github.com/gentoo-mirror/sam_c.git masters: gentoo eclass-overrides: sam_c volatile: True steam-overlay location: /var/db/repos/steam-overlay sync-type: git sync-uri: https://github.com/gentoo-mirror/steam-overlay.git masters: gentoo eclass-overrides: sam_c volatile: True test location: /var/db/repos/test masters: gentoo eclass-overrides: sam_c volatile: True ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="@FREE" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -pipe -march=native -fdiagnostics-color=always -frecord-gcc-switches -Wreturn-type" 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/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php8.2/ext-active/ /etc/php/cgi-php8.2/ext-active/ /etc/php/cli-php8.2/ext-active/ /etc/php/fpm-php8.2/ext-active/ /etc/php/phpdbg-php8.2/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-O2 -pipe -march=native -fdiagnostics-color=always -frecord-gcc-switches -Wreturn-type" DISTDIR="/var/cache/distfiles" EMERGE_DEFAULT_OPTS="--keep-going --with-bdeps=y --complete-graph --deep --dynamic-deps=n --changed-deps=n --usepkg-exclude sys-fs/zfs --usepkg-exclude sys-fs/zfs-kmod --usepkg=y --implicit-system-deps=n --jobs=4 --load-average 32" ENV_UNSET="CARGO_HOME DBUS_SESSION_BUS_ADDRESS DISPLAY GDK_PIXBUF_MODULE_FILE GOBIN GOPATH PERL5LIB PERL5OPT PERLPREFIX PERL_CORE PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME XDG_CONFIG_HOME XDG_DATA_HOME XDG_RUNTIME_DIR XDG_STATE_HOME" FCFLAGS="-O2 -pipe -march=native -fdiagnostics-color=always -frecord-gcc-switches -Wreturn-type" FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs binpkg-multi-instance buildpkg cgroup clean-logs config-protect-if-modified distlocks fixlafiles ipc-sandbox mount-sandbox multilib-strict network-sandbox news parallel-fetch parallel-install pid-sandbox pkgdir-index-trusted preserve-libs protect-owned qa-unresolved-soname-deps sandbox sfperms split-log strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-O2 -pipe -march=native -fdiagnostics-color=always -frecord-gcc-switches -Wreturn-type" GENTOO_MIRRORS="http://www.mirrorservice.org/sites/distfiles.gentoo.org/ http://mirrors.soeasyto.com/distfiles.gentoo.org/" LANG="en_GB.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0 -Wl,-z,pack-relative-relocs" LEX="reflex" LINGUAS="en en_GB" MAKEOPTS="-j32 -l32" PKGDIR="/var/cache/binpkgs" PORTAGE_BUNZIP2_COMMAND="lbunzip2" PORTAGE_COMPRESS="xz" 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" RUSTFLAGS="-C target-cpu=native" SHELL="/bin/bash" USE="PIC X a52 aac acl acpi activities aes alsa amd64 avx avx2 bash-completion bluetooth branding bzip2 cairo caps cdda cdr cet clang cli crypt dbus declarative dist-kernel dri dts dvd dvdr emacs encode exif f16c filecaps firewalld flac fma3 fortran freetype gdbm gif gmp gpm graphite gtk gui hardened harfbuzz hunspell iconv icu ipv6 jit jpeg kde kdesu kwallet lcms libglvnd libnotify libtirpc lto mad mmx mmxext mng mp3 mp4 mpeg multilib ncurses nftables nls nptl ogg opengl openmp pam pango pclmul pcre pdf pgo pie pipewire plasma png policykit popcnt ppds pulseaudio qml qt5 rdrand readline screencast sdl seccomp semantic-desktop sha sound spell sse sse2 sse3 sse4_1 sse4_2 sse4a ssl ssp ssse3 startup-notification svg system-av1 system-binutils system-boost system-bootstrap system-cairo system-clang system-digest system-ffmpeg system-harfbuzz system-heimdal system-icu system-jpeg system-leveldb system-libevent system-libs system-libvpx system-libyaml system-llvm system-lz4 system-mitkrb5 system-sqlite system-ssl system-tbb system-uulib system-webp system-zlib systemd test-rust tiff truetype udev udisks unicode upower usb verify-sig vorbis vulkan wayland widgets x264 xattr xcb xft xml xtpax xv xvid zfs zlib zsh-completion" ABI_X86="32 64" ADA_TARGET="gnat_2021" 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="karbon sheets words" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="aes avx avx2 f16c fma3 mmx mmxext pclmul popcnt rdrand sha sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock greis isync itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="libinput" KERNEL="linux" L10N="en en-GB" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LLVM_TARGETS="AArch64 AMDGPU ARM AVR BPF Hexagon Lanai MSP430 Mips NVPTX PowerPC RISCV Sparc SystemZ WebAssembly X86 XCore" LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php7-4 php8-0" POSTGRES_TARGETS="postgres12 postgres13" PYTHON_SINGLE_TARGET="python3_11" PYTHON_TARGETS="python3_10 pypy3 python3_11 python3_8 python3_9" QEMU_USER_TARGETS="aarch64 aarch64_be alpha armeb hppa m68k ppc ppc64 ppc64le sparc sparc64" RUBY_TARGETS="ruby31" USERLAND="GNU" VIDEO_CARDS="amdgpu radeonsi radeon" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq proto steal rawnat logmark ipmark dhcpmac delude chaos account" YACC="byacc" Unset: ADDR2LINE, AR, ARFLAGS, AS, ASFLAGS, CC, CCLD, CONFIG_SHELL, CPP, CPPFLAGS, CTARGET, CXX, CXXFILT, ELFEDIT, EXTRA_ECONF, F77FLAGS, FC, GCOV, GPROF, INSTALL_MASK, LC_ALL, LD, LFLAGS, LIBTOOL, MAKE, MAKEFLAGS, NM, OBJCOPY, OBJDUMP, PORTAGE_BINHOST, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, RANLIB, READELF, SIZE, STRINGS, STRIP, YFLAGS
(gdb) bt #0 0x00007fd815dadf0c in ?? () from /usr/lib64/libc.so.6 #1 0x00007fd815d5cae6 in raise () from /usr/lib64/libc.so.6 #2 0x00007fd815d45877 in abort () from /usr/lib64/libc.so.6 #3 0x00007fd815d467b8 in ?? () from /usr/lib64/libc.so.6 #4 0x00007fd815e4115b in __fortify_fail () from /usr/lib64/libc.so.6 #5 0x00007fd815e3f8c6 in __chk_fail () from /usr/lib64/libc.so.6 #6 0x000056146f574b92 in parse_dep_file () #7 0x000056146f574dd9 in print_deps () #8 0x000056146f5742d8 in main () (gdb) quit
``` /var/tmp/portage/sys-apps/busybox-1.34.1-r1/work/busybox-1.34.1 # scripts/basic/fixdep scripts/basic/.docproc.d scripts/basic/docproc $'x86_64-pc-linux-gnu-gcc -Wp,-MD,scripts/basic/.docproc.d -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -o scripts/basic/docproc scripts/basic/docproc.c ' cmd_scripts/basic/docproc := x86_64-pc-linux-gnu-gcc -Wp,-MD,scripts/basic/.docproc.d -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -o scripts/basic/docproc scripts/basic/docproc.c deps_scripts/basic/docproc := \ scripts/basic/docproc.c \ /usr/include/gentoo/fortify.h \ /usr/include/stdio.h \ /usr/include/bits/libc-header-start.h \ /usr/include/features.h \ /usr/include/features-time64.h \ /usr/include/bits/wordsize.h \ /usr/include/bits/timesize.h \ /usr/include/stdc-predef.h \ /usr/include/sys/cdefs.h \ /usr/include/bits/long-double.h \ /usr/include/gnu/stubs.h \ /usr/include/gnu/stubs-64.h \ /usr/lib/llvm/16/bin/../../../../lib/clang/16/include/stddef.h \ /usr/lib/llvm/16/bin/../../../../lib/clang/16/include/stdarg.h \ /usr/include/bits/types.h \ /usr/include/bits/typesizes.h \ /usr/include/bits/time64.h \ /usr/include/bits/types/__fpos_t.h \ /usr/include/bits/types/__mbstate_t.h \ /usr/include/bits/types/__fpos64_t.h \ /usr/include/bits/types/__FILE.h \ /usr/include/bits/types/FILE.h \ /usr/include/bits/types/struct_FILE.h \ /usr/include/bits/stdio_lim.h \ /usr/include/bits/floatn.h \ /usr/include/bits/floatn-common.h \ /usr/include/bits/stdio2-decl.h \ /usr/include/bits/stdio.h \ /usr/include/bits/stdio2.h \ /usr/include/stdlib.h \ /usr/include/bits/waitflags.h \ /usr/include/bits/waitstatus.h \ /usr/include/sys/types.h \ /usr/include/bits/types/clock_t.h \ /usr/include/bits/types/clockid_t.h \ /usr/include/bits/types/time_t.h \ /usr/include/bits/types/timer_t.h \ /usr/include/bits/stdint-intn.h \ /usr/include/endian.h \ /usr/include/bits/endian.h \ /usr/include/bits/endianness.h \ /usr/include/bits/byteswap.h \ /usr/include/bits/uintn-identity.h \ /usr/include/sys/select.h \ /usr/include/bits/select.h \ /usr/include/bits/types/sigset_t.h \ /usr/include/bits/types/__sigset_t.h \ /usr/include/bits/types/struct_timeval.h \ /usr/include/bits/types/struct_timespec.h \ /usr/include/bits/select2.h \ /usr/include/bits/pthreadtypes.h \ /usr/include/bits/thread-shared-types.h \ /usr/include/bits/pthreadtypes-arch.h \ /usr/include/bits/atomic_wide_counter.h \ /usr/include/bits/struct_mutex.h \ /usr/include/bits/struct_rwlock.h \ /usr/include/alloca.h \ /usr/include/bits/stdlib-bsearch.h \ /usr/include/bits/stdlib-float.h \ /usr/include/bits/stdlib.h \ /usr/include/string.h \ /usr/include/bits/types/locale_t.h \ /usr/include/bits/types/__locale_t.h \ /usr/include/strings.h \ /usr/include/bits/strings_fortified.h \ /usr/include/bits/string_fortified.h \ /usr/include/ctype.h \ /usr/include/unistd.h \ /usr/include/bits/posix_opt.h \ /usr/include/bits/environments.h \ /usr/include/bits/confname.h \ /usr/include/bits/getopt_posix.h \ /usr/include/bits/getopt_core.h \ /usr/include/bits/unistd.h \ /usr/include/bits/unistd_ext.h \ /usr/lib/llvm/16/bin/../../../../lib/clang/16/include/limits.h \ /usr/include/limits.h \ /usr/include/bits/posix1_lim.h \ /usr/include/bits/local_lim.h \ /usr/include/linux/limits.h \ /usr/include/bits/pthread_stack_min-dynamic.h \ /usr/include/bits/pthread_stack_min.h \ /usr/include/bits/posix2_lim.h \ /usr/include/sys/wait.h \ /usr/include/signal.h \ /usr/include/bits/signum-generic.h \ /usr/include/bits/signum-arch.h \ /usr/include/bits/types/sig_atomic_t.h \ /usr/include/bits/types/siginfo_t.h \ /usr/include/bits/types/__sigval_t.h \ /usr/include/bits/siginfo-arch.h \ /usr/include/bits/siginfo-consts.h \ /usr/include/bits/types/sigval_t.h \ /usr/include/bits/types/sigevent_t.h \ /usr/include/bits/sigevent-consts.h \ /usr/include/bits/sigaction.h \ /usr/include/bits/sigcontext.h \ /usr/include/bits/types/stack_t.h \ /usr/include/sys/ucontext.h \ /usr/include/bits/sigstack.h \ /usr/include/bits/sigstksz.h \ /usr/include/bits/ss_flags.h \ /usr/include/bits/types/struct_sigstack.h \ /usr/include/bits/sigthread.h \ /usr/include/bits/signal_ext.h \ /usr/include/bits/types/idtype_t.h \ *** buffer overflow detected ***: terminated Aborted (core dumped) ```
I had to fiddle a bit to get fixdep to be built with debugging symbols (needed to set HOSTCFLAGS in a bunch of places). It happens with different files each time, it depends where it fails: ``` gdb --args scripts/basic/fixdep scripts/kconfig/.kxgettext.o.d scripts/kconfig/kxgettext.o $'x86_64-pc-linux-gnu-gcc -Wp,-MD,scripts/kconfig/.kxgettext.o.d -O2 -ggdb3 -c -o scripts/kconfig/kxgettext.o scripts/kconfig/kxgettext.c' cmd_scripts/kconfig/kxgettext.o := x86_64-pc-linux-gnu-gcc -Wp,-MD,scripts/kconfig/.kxgettext.o.d -O2 -ggdb3 -c -o scripts/kconfig/kxgettext.o scripts/kconfig/kxgettext.c deps_scripts/kconfig/kxgettext.o := \ scripts/kconfig/kxgettext.c \ /usr/include/gentoo/fortify.h \ /usr/include/stdlib.h \ /usr/include/bits/libc-header-start.h \ /usr/include/features.h \ /usr/include/features-time64.h \ /usr/include/bits/wordsize.h \ /usr/include/bits/timesize.h \ /usr/include/stdc-predef.h \ /usr/include/sys/cdefs.h \ /usr/include/bits/long-double.h \ /usr/include/gnu/stubs.h \ /usr/include/gnu/stubs-64.h \ /usr/lib/llvm/16/bin/../../../../lib/clang/16/include/stddef.h \ /usr/include/bits/waitflags.h \ /usr/include/bits/waitstatus.h \ /usr/include/bits/floatn.h \ /usr/include/bits/floatn-common.h \ /usr/include/sys/types.h \ /usr/include/bits/types.h \ /usr/include/bits/typesizes.h \ /usr/include/bits/time64.h \ /usr/include/bits/types/clock_t.h \ /usr/include/bits/types/clockid_t.h \ /usr/include/bits/types/time_t.h \ /usr/include/bits/types/timer_t.h \ /usr/include/bits/stdint-intn.h \ /usr/include/endian.h \ /usr/include/bits/endian.h \ /usr/include/bits/endianness.h \ /usr/include/bits/byteswap.h \ /usr/include/bits/uintn-identity.h \ /usr/include/sys/select.h \ /usr/include/bits/select.h \ /usr/include/bits/types/sigset_t.h \ /usr/include/bits/types/__sigset_t.h \ /usr/include/bits/types/struct_timeval.h \ /usr/include/bits/types/struct_timespec.h \ /usr/include/bits/select2.h \ /usr/include/bits/pthreadtypes.h \ /usr/include/bits/thread-shared-types.h \ /usr/include/bits/pthreadtypes-arch.h \ /usr/include/bits/atomic_wide_counter.h \ /usr/include/bits/struct_mutex.h \ /usr/include/bits/struct_rwlock.h \ /usr/include/alloca.h \ /usr/include/bits/stdlib-bsearch.h \ /usr/include/bits/stdlib-float.h \ /usr/include/bits/stdlib.h \ /usr/include/string.h \ /usr/include/bits/types/locale_t.h \ /usr/include/bits/types/__locale_t.h \ /usr/include/strings.h \ /usr/include/bits/strings_fortified.h \ /usr/include/bits/string_fortified.h \ scripts/kconfig/lkc.h \ scripts/kconfig/expr.h \ /usr/include/stdio.h \ /usr/lib/llvm/16/bin/../../../../lib/clang/16/include/stdarg.h \ /usr/include/bits/types/__fpos_t.h \ /usr/include/bits/types/__mbstate_t.h \ /usr/include/bits/types/__fpos64_t.h \ /usr/include/bits/types/__FILE.h \ /usr/include/bits/types/FILE.h \ /usr/include/bits/types/struct_FILE.h \ /usr/include/bits/stdio_lim.h \ /usr/include/bits/stdio2-decl.h \ /usr/include/bits/stdio.h \ /usr/include/bits/stdio2.h \ /usr/lib/llvm/16/bin/../../../../lib/clang/16/include/stdbool.h \ /usr/include/libintl.h \ /usr/include/locale.h \ /usr/include/bits/locale.h \ scripts/kconfig/lkc_proto.h \ *** buffer overflow detected ***: terminated Program received signal SIGABRT, Aborted. 0x00007ffff7e40f0c in ?? () from /usr/lib64/libc.so.6 (gdb) bt #0 0x00007ffff7e40f0c in ?? () from /usr/lib64/libc.so.6 #1 0x00007ffff7defae6 in raise () from /usr/lib64/libc.so.6 #2 0x00007ffff7dd8877 in abort () from /usr/lib64/libc.so.6 #3 0x00007ffff7dd97b8 in ?? () from /usr/lib64/libc.so.6 #4 0x00007ffff7ed415b in __fortify_fail () from /usr/lib64/libc.so.6 #5 0x00007ffff7ed28c6 in __chk_fail () from /usr/lib64/libc.so.6 #6 0x0000555555555b92 in memcpy (__len=18446744073709551614, __src=<optimized out>, __dest=0x7fffffffd5f0) at /usr/include/bits/string_fortified.h:29 #7 parse_dep_file (map=map@entry=0x7ffff7fc3000, len=<optimized out>) at scripts/basic/fixdep.c:341 #8 0x0000555555555dd9 in print_deps () at scripts/basic/fixdep.c:379 #9 0x00005555555552d8 in main (argc=<optimized out>, argv=<optimized out>) at scripts/basic/fixdep.c:411 (gdb) ```
Smaller steps to repro: 1. make HOSTCFLAGS="-O2 -ggdb3 -D_FORTIFY_SOURCE=3" scripts_basic 2. cp /tmp/kxgettext.o.d scripts/kconfig/.kxgettext.o.d # with /tmp/kxgettext.o.d as http://sprunge.us/MImodt 3. scripts/basic/fixdep scripts/kconfig/.kxgettext.o.d scripts/kconfig/kxgettext.o $'x86_64-pc-linux-gnu-gcc -Wp,-MD,scripts/kconfig/.kxgettext.o.d -O2 -ggdb3 -c -o scripts/kconfig/kxgettext.o scripts/kconfig/kxgettext.c' --- http://sprunge.us/MImodt: ``` /tmp/garbage: \ /usr/include/stdlib.h \ ```
Created attachment 853510 [details, diff] [PATCH] fixdep: avoid underflow when end of entry doesn't coincide this is an underflow that happens in the parse_dep_file function in fixdep.c. this function works by approximately parsing the dependency list of the make target in a file with a primitive algorithm. this algorithm scans over the string and does the following: while the end of string is not reached: skip any character matching [ \\\n\r] within the bounds of the string save that position as p and SOI skip from the start of p to the first space following it, or the EOS if that process reached EOS: walk back p until the first char after an alphanumeric (!!!) memcpy (s, SOI, p - SOI) ... the line marked with (!!!) ignores the fact that SOI does not necessarily point before any alphanumeric characters, and so, can move p to be before SOI. should that happen, ``p - SOI'' underflows. the lack of alphanumeric characters in the [SOI, EOS) range implies that there's no more filenames that are to be printed as dependencies (assuming that filenames start with alphanumerics..), and so, the parser should terminate at this point this edge case can be easily triggered by simply placing whitespace characters that follow the last name in the dependency list, for instance (<SPC> for emphasis): a: \ scripts/kconfig/kxgettext.c foo<SPC><SPC><SPC> in general, this program seems highly trusting of its input, though, so I imagine it could easily break should compilers decide to emit something slightly different for any reason
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=0d7891fb673467a8f74f7aec5a5bc166b078e2ae commit 0d7891fb673467a8f74f7aec5a5bc166b078e2ae Author: Sam James <sam@gentoo.org> AuthorDate: 2023-04-12 07:33:00 +0000 Commit: Sam James <sam@gentoo.org> CommitDate: 2023-04-12 07:35:04 +0000 sys-apps/busybox: backport FORTIFY_SOURCE=3 (build) fix; ed UB fix Closes: https://bugs.gentoo.org/893776 Thanks-to: Arsen Arsenović <arsen@gentoo.org> Signed-off-by: Sam James <sam@gentoo.org> sys-apps/busybox/busybox-1.34.1-r2.ebuild | 367 ++++++++++++++++++++ sys-apps/busybox/busybox-1.35.0-r2.ebuild | 368 +++++++++++++++++++++ .../busybox-1.36.0-ed-memcpy-overlapping.patch | 38 +++ .../busybox-1.36.0-fortify-source-3-fixdep.patch | 32 ++ 4 files changed, 805 insertions(+)
