$subj, i'll attach the backtrace. with media-gfx/eog-2.22.3-r1 i can open a PNG file with XMP metadata(2.22.3 doesn't have XMP support), and it doesn't sigbus. with media-gfx/eog-2.24.2 if i open a PNG file with XMP metadata(with xmp USE-flag), it sigbuses. Same without xmp USE-flag. It doesn't sigbus with another kind of graphic file(JPG,GIF) with XMP metadata. It doesn't sigbus either with a normal PNG file. I think its related to eog itself, because nautilus can display the PNG file thumbnail with XMP support, and it can read its metadata without sigbusing. Portage 2.1.4.5 (default/linux/sparc/2008.0/desktop, gcc-4.1.2, glibc-2.6.1-r0, 2.6.26-gentoo-r2 sparc64) ================================================================= System uname: 2.6.26-gentoo-r2 sparc64 sun4v Timestamp of tree: Sat, 13 Dec 2008 03:01:01 +0000 app-shells/bash: 3.2_p33 dev-lang/python: 2.5.2-r7 dev-python/pycrypto: 2.0.1-r6 sys-apps/baselayout: 1.12.11.1 sys-apps/sandbox: 1.2.18.1-r2 sys-devel/autoconf: 2.13, 2.61-r2 sys-devel/automake: 1.5, 1.7.9-r1, 1.9.6-r2, 1.10.1-r1 sys-devel/binutils: 2.18-r3 sys-devel/gcc-config: 1.4.0-r4 sys-devel/libtool: 1.5.26 virtual/os-headers: 2.6.23-r3 ACCEPT_KEYWORDS="sparc" CBUILD="sparc-unknown-linux-gnu" CFLAGS="-O2 -mcpu=ultrasparc -pipe -ggdb" CHOST="sparc-unknown-linux-gnu" CONFIG_PROTECT="/etc" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/revdep-rebuild /etc/terminfo /etc/udev/rules.d" CXXFLAGS="-O2 -mcpu=ultrasparc -pipe -ggdb" DISTDIR="/usr/portage/distfiles" FEATURES="distlocks metadata-transfer nostrip sandbox sfperms strict unmerge-orphans userfetch" GENTOO_MIRRORS="ftp://gentoo.osuosl.org/pub/gentoo" LDFLAGS="-Wl,-O1" MAKEOPTS="-j33" PKGDIR="/usr/portage/packages" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://raptor.gentoo.org/gentoo-portage" USE="X acl berkdb bluetooth branding bzip2 cairo cdr cli cracklib crypt dbus dri dvd dvdr dvdread eds emboss encode esd evo fam firefox fortran gcc64 gdbm gif gpm gtk hal iconv ipv6 isdnlog jpeg mad midi mikmod mp3 mpeg mudflap ncurses nptl nptlonly ogg opengl openmp pam pcre pdf perl png ppds pppd python qt3 qt3support qt4 quicktime readline reflection sdl session sparc spell spl ssl startup-nfication svg sysfs tcpd tiff truetype unicode usb vorbis xml xorg xv zlib" 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 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" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" USERLAND="GNU" VIDEO_CARDS="vesa" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, LANG, LC_ALL, LINGUAS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
Created attachment 175195 [details] backtrace.log
Created attachment 175241 [details, diff] eog-sigbus.patch This patch fixes it. xmp_chunk is aligned by 4 so doing +18 doesn't work(+16 or +20 would work). But I'm woundering why they want to check if the string is terminated by 5 \0's. Usually one \0 is enought ;)
doh, bad memory manipulation, thanks for the patch, will include it asap.
commited, thanks for reporting and patching.
