It consists of a simple Java class, calculating checksums for files. To walk you through the experience, I have created a small test case. Or in more detail, how using native methods can result in JVM crashing silently without any reasonable traces in log files. This post is about a recent experience with native methods. I am also sure that the surprise has later vanished over the years with coming to understand how the JVM handles calls to native implementations via JNI. I don't think its a problem with the kernel or hardened gcc.I bet every Java developer has been surprised at some point in the beginning of their career when they first encounter native methods in Java code. How-To: Daten verschlüsselt auf DVD speichern. He brings you down to his level, then beats you with experience. It runs well here (hardened gcc 4.2.3, vanilla-sources-2.6.24.4 patched with grsecurity). I've always kept my system up to date, and something that I've upgraded recently has caused this. Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS, LINGUAS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS USE="berkdb cracklib crypt hardened midi nls nptl nptlonly pam pic readline ssl tcpd urandom x86 xorg zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1 emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter 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 asis auth_digest authn_dbd cern_meta charset_lite dbd dumpio ident imagemap log_forensic proxy proxy_ajp proxy_balancer proxy_connect proxy_ftp proxy_http" ELIBC="glibc" INPUT_DEVICES="mouse keyboard" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" USERLAND="GNU" VIDEO_CARDS="apm ark chips cirrus cyrix dummy fbdev glint i128 i740 i810 imstt mach64 mga neomagic nsc nv r128 radeon rendition s3 s3virge savage siliconmotion sis sisusb tdfx tga trident tseng v4l vesa vga via vmware voodoo" PORTAGE_RSYNC_OPTS="-recursive -links -safe-links -perms -times -compress -force -whole-file -delete -stats -timeout=180 -exclude=/distfiles -exclude=/local -exclude=/packages" Sys-devel/automake: 1.4_p6, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10ĬFLAGS="-mtune=pentium4 -O2 -pipe -fforce-addr"ĬONFIG_PROTECT="/etc /var/bind /var/service"ĬONFIG_PROTECT_MASK="/etc/env.d /etc/gconf /etc/php/apache2-php5/ext-active/ /etc/php/cgi-php5/ext-active/ /etc/php/cli-php5/ext-active/ /etc/revdep-rebuild /etc/splash /etc/terminfo /etc/udev/rules.d"ĬXXFLAGS="-mtune=pentium4 -O2 -pipe -fforce-addr"įEATURES="distlocks metadata-transfer sandbox sfperms strict unmerge-orphans userfetch" System uname: 2.6.23-hardened-r9 i686 Intel(R) Celeron(R) CPU 2.93GHz I have recompiled everything with emwrap.sh over the last day and it still does it Lshw: stack smashing attack in function bool load_usbids(const std::string&). *** stack smashing detected ***: lshw - terminated Posted: Thu 10:45 am Post subject: lshw stack smashing detected! Gentoo Forums Forum Index Kernel & Hardware Gentoo Forums :: View topic - lshw stack smashing detected!
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