Created attachment 379406 [details] test.swp $ LANG=en_US.UTF-8 grep -P -i k test.swp Segmentation fault test.swp attached (it's Vim's .swp file of small perl script). With LANG= there is no segfault, probably because PCRE don't try to do some unicode-related thing. [ebuild R ] sys-apps/grep-2.16 USE="nls pcre -static" 0 kB [ebuild R ] dev-libs/libpcre-8.33:3 USE="bzip2 cxx readline recursion-limit (unicode) zlib -jit -libedit -pcre16 -pcre32 -static-libs" 0 kB Portage 2.2.8-r1 (hardened/linux/amd64, gcc-4.7.3, glibc-2.17, 3.14.5-hardened-r2_nofb x86_64) ================================================================= System uname: Linux-3.14.5-hardened-r2_nofb-x86_64-Intel-R-_Core-TM-_i7-2600K_CPU_@_3.40GHz-with-gentoo-2.2 KiB Mem: 8162032 total, 676008 free KiB Swap: 4200960 total, 4198584 free Timestamp of tree: Sun, 22 Jun 2014 06:15:02 +0000 ld GNU ld (GNU Binutils) 2.23.2 app-shells/bash: 4.2_p45 dev-java/java-config: 2.2.0 dev-lang/python: 2.7.6, 3.3.3 dev-util/cmake: 2.8.12.2 dev-util/pkgconfig: 0.28 sys-apps/baselayout: 2.2 sys-apps/openrc: 0.12.4 sys-apps/sandbox: 2.6-r1 sys-devel/autoconf: 2.13, 2.69 sys-devel/automake: 1.11.6, 1.13.4 sys-devel/binutils: 2.23.2 sys-devel/gcc: 4.7.3-r1 sys-devel/gcc-config: 1.7.3 sys-devel/libtool: 2.4.2 sys-devel/make: 3.82-r4 sys-kernel/linux-headers: 3.13 (virtual/os-headers) sys-libs/glibc: 2.17 Repositories: gentoo perl-experimental-snapshots gamerlay powerman local ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=native -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /opt/upsmon-usb/EXT/DownOS /opt/upsmon-usb/EXT/JSystem /service /usr/inferno/keydb /usr/inferno/lib /usr/inferno/services /usr/share/config /usr/share/easy-rsa /usr/share/gnupg/qualified.txt /var/log /var/qmail/alias /var/qmail/control" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-march=native -O2 -pipe" DISTDIR="/usr/portage-distfiles" EMERGE_DEFAULT_OPTS="--with-bdeps=y --autounmask-write --backtrack=15" FCFLAGS="-march=native -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 test unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync webrsync-gpg xattr" FFLAGS="-march=native -O2 -pipe" GENTOO_MIRRORS="http://gentoo.iteam.net.ua/ http://tux.rainside.sk/gentoo/ http://trumpetti.atm.tut.fi/gentoo/ http://gentoo.inode.at/" LANG="ru_RU.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j8" PKGDIR="/usr/portage-packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_EXTRA_OPTS="--exclude ChangeLog --delete-excluded" 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" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/var/lib/layman/perl-experimental-snapshots /var/lib/layman/gamerlay /var/lib/layman/powerman /usr/local/portage" SYNC="rsync://rsync.ua.gentoo.org/gentoo-portage" USE="X a52 aac alac alsa amd64 avx bash-completion berkdb bzip2 caps cdda cddb cli cracklib crypt cxx dbus dri drm dts dvb dvd egl flac fontconfig gallium gdbm gif gnutls gpg hardened iconv icu id3tag idn ipv6 jpeg jpeg2k justify libnotify mac mad matroska mbox mmx mng modules mp3 mpeg multilib musepack mysql ncurses network-cron nls nptl nsplugin ogg opengl openmp openvg pam pax_kernel pcre perl png qt3support readline session spell sse sse2 sse3 sse4_1 sse4_2 ssl ssse3 svg tcpd theora tiff truetype unicode urandom vdpau vim-syntax vorbis wavpack x264 xattr xosd xtpax xv xvid xvmc 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="log_config vhost_alias autoindex alias rewrite dir deflate filter mime negotiation auth_basic authn_file authz_host authz_user authz_groupfile cgi actions headers env setenvif" 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" 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="evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en ru" NGINX_MODULES_HTTP="access auth_basic autoindex browser charset empty_gif fastcgi geo gzip limit_conn limit_req map memcached proxy referer rewrite scgi split_clients ssi upstream_ip_hash userid uwsgi fancyindex" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-3" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_3" QEMU_SOFTMMU_TARGETS="x86_64 i386" QEMU_USER_TARGETS="x86_64 i386" RUBY_TARGETS="ruby19 ruby20" USERLAND="GNU" VIDEO_CARDS="nvidia 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, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, USE_PYTHON
(In reply to Alex Efros from comment #0) > [ebuild R ] dev-libs/libpcre-8.33:3 USE="bzip2 cxx readline > recursion-limit (unicode) zlib -jit -libedit -pcre16 -pcre32 -static-libs" 0 > kB I had no problems with these USE flags: [ebuild R ] dev-libs/libpcre-8.33:3 USE="bzip2 cxx jit pcre16 readline recursion-limit (unicode) zlib -libedit -pcre32 -static-libs" 0 kB When matching yours, I get: #0 0x00007ffff7f98b9b in match (eptr=0x43701e "werman", ecode=0x436513 "\020\tGr", mstart=0x437018 "\374J", offset_top=2, md=<optimized out>, eptrb=0x0, rdepth=0) at pcre_exec.c:2621 cp = <optimized out> prop = <optimized out> rrc = <optimized out> i = <optimized out> c = 167775279 utf = 1 minimize = 0 possessive = 0 caseless = <optimized out> condcode = <optimized out> charptr = <optimized out> callpat = <optimized out> data = <optimized out> next = <optimized out> pp = <optimized out> prev = <optimized out> saved_eptr = <optimized out> new_recursive = {prevrec = 0x0, group_num = 0, offset_save = 0x0, saved_max = 0, saved_capture_last = 0, subject_position = 0x0} cur_is_word = <optimized out> condition = <optimized out> prev_is_word = <optimized out> prop_type = <optimized out> prop_value = 0 prop_fail_result = 0 oclength = <optimized out> occhars = "\000\000\000\000\000" codelink = <optimized out> ctype = <optimized out> length = <optimized out> max = <optimized out> min = <optimized out> number = <optimized out> offset = <optimized out> op = 16 save_capture_last = <optimized out> save_offset1 = <optimized out> save_offset2 = <optimized out> save_offset3 = <optimized out> stacksave = {0, 0, 1, 0, 4, 0, 2147215763, 0, -134733744, 32767, -136427936, 32767, -15328, 32767, 33550246, 0, -1, 0, -134729328, 32767, -134726932, 32767, 0, 0, -15312, 32767, 8387561, 0, -134729328, 32767} newptrb = {epb_prev = 0x0, epb_saved_eptr = 0x0} #1 0x00007ffff7fa901f in pcre_exec (argument_re=0x4364d0, extra_data=0x436530, subject=subject@entry=0x437000 "b0VIM 7.4", length=<optimized out>, start_offset=start_offset@entry=0, options=options@entry=8192, offsets=offsets@entry=0x7fffffffc590, offsetcount=offsetcount@entry=300) at pcre_exec.c:6976 ---Type <return> to continue, or q <return> to quit--- save_end_subject = 0x43a000 "\n" new_start_match = <optimized out> rc = <optimized out> ocount = 300 arg_offset_max = 200 newline = <optimized out> using_temporary_offsets = <optimized out> anchored = <optimized out> startline = <optimized out> firstline = <optimized out> utf = 1 has_first_char = 0 has_req_char = 0 first_char = 0 '\000' first_char2 = 0 '\000' req_char = 0 '\000' req_char2 = 0 '\000' match_block = {match_call_count = 2, match_limit = 10000000, match_limit_recursion = 8192, offset_vector = 0x7fffffffc590, offset_end = 300, offset_max = 200, nltype = 0, nllen = 1, name_count = 0, name_entry_size = 0, skip_arg_count = 0, ignore_skip_arg = 0, name_table = 0x436510 "}", nl = "\n\253\377", <incomplete sequence \367>, lcc = 0x436080 "", fcc = 0x436180 "", ctypes = 0x4363c0 "\200", notbol = 0, noteol = 0, utf = 1, jscript_compat = 0, use_ucp = 0, endonly = 0, notempty = 0, notempty_atstart = 0, hitend = 0, bsr_anycrlf = 0, hasthen = 0, start_code = 0x436510 "}", start_subject = 0x437000 "b0VIM 7.4", end_subject = 0x43a000 "\n", start_match_ptr = 0x437018 "\374J", end_match_ptr = 0x43a001 "", start_used_ptr = 0x437018 "\374J", partial = 0, end_offset_top = 0, capture_last = 0, start_offset = 0, match_function_type = 0, eptrchain = 0x0, eptrn = -134728272, recursive = 0x0, callout_data = 0x0, mark = 0x0, nomatch_mark = 0x0, once_target = 0x7fffffffc590 "\377\377\377\377\377\377\377\377"} md = 0x7fffffffc400 tables = <optimized out> start_bits = 0x0 start_match = <optimized out> end_subject = <optimized out> start_partial = 0x0 match_partial = 0x0 req_char_ptr = 0x436fff "\nb0VIM 7.4" study = 0x436570 re = 0x4364d0 #2 [...] Specifically, with USE=-jit I get segmentation faults.
(In reply to Jeroen Roovers from comment #1) > Specifically, with USE=-jit I get segmentation faults. Yeah, enabliing jit fix this, but that's not an option for me - I'm on hardened, and enabliing jit mean I'll have to "paxmark m" all binaries linked with libpcre.
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=19c92a966c7f9b03da46dc047e4655e5e95aed30 commit 19c92a966c7f9b03da46dc047e4655e5e95aed30 Author: Sam James <sam@gentoo.org> AuthorDate: 2022-05-03 23:56:43 +0000 Commit: Sam James <sam@gentoo.org> CommitDate: 2022-05-03 23:57:07 +0000 sys-apps/grep: add 3.7_p20220425 (unkeyworded). Notably switches to libpcre2 (yay). Pre-release for testing. Bug: https://bugs.gentoo.org/514454 Bug: https://bugs.gentoo.org/569816 Bug: https://bugs.gentoo.org/641186 Signed-off-by: Sam James <sam@gentoo.org> sys-apps/grep/Manifest | 2 + sys-apps/grep/grep-3.7_p20220425.ebuild | 72 +++++++++++++++++++++++++++++++++ 2 files changed, 74 insertions(+)
