Summary: SELinux is preventing /usr/lib64/chromium-browser/chromium-browser "execute" access on /dev/zero. Detailed Description: [chromium-browse has a permissive type (chrome_sandbox_t). This access was not denied.] SELinux denied access requested by chromium-browse. It is not expected that this access is required by chromium-browse and this access may signal an intrusion attempt. It is also possible that the specific version or configuration of the application is causing it to require additional access. Allowing Access: You can generate a local policy module to allow this access - see FAQ (http://docs.fedoraproject.org/selinux-faq-fc5/#id2961385) Please file a bug report. Additional Information: Source Context unconfined_u:unconfined_r:chrome_sandbox_t:s0-s0:c 0.c1023 Target Context system_u:object_r:zero_device_t:s0 Target Objects /dev/zero [ chr_file ] Source chromium-browse Source Path /usr/lib64/chromium-browser/chromium-browser Port <Unknown> Host (removed) Source RPM Packages chromium-5.0.360.0-0.1.20100322svn42211.fc12 Target RPM Packages Policy RPM selinux-policy-3.6.32-103.fc12 Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Plugin Name catchall Host Name (removed) Platform Linux (removed) 2.6.32.9-70.fc12.x86_64 #1 SMP Wed Mar 3 04:40:41 UTC 2010 x86_64 x86_64 Alert Count 5 First Seen Mon 22 Mar 2010 04:13:52 AM CET Last Seen Wed 24 Mar 2010 10:11:33 AM CET Local ID 80ba6f62-299b-45d1-8207-666ca3f5a83c Line Numbers Raw Audit Messages node=(removed) type=AVC msg=audit(1269421893.521:27): avc: denied { execute } for pid=2648 comm="chromium-browse" path="/dev/zero" dev=devtmpfs ino=3479 scontext=unconfined_u:unconfined_r:chrome_sandbox_t:s0-s0:c0.c1023 tcontext=system_u:object_r:zero_device_t:s0 tclass=chr_file node=(removed) type=SYSCALL msg=audit(1269421893.521:27): arch=c000003e syscall=9 per=400000 success=yes exit=1101905920 a0=0 a1=2000 a2=7 a3=42 items=0 ppid=0 pid=2648 auid=10026 uid=10026 gid=10001 euid=10026 suid=10026 fsuid=10026 egid=10001 sgid=10001 fsgid=10001 tty=(none) ses=1 comm="chromium-browse" exe="/usr/lib64/chromium-browser/chromium-browser" subj=unconfined_u:unconfined_r:chrome_sandbox_t:s0-s0:c0.c1023 key=(null) Hash String generated from catchall,chromium-browse,chrome_sandbox_t,zero_device_t,chr_file,execute audit2allow suggests: #============= chrome_sandbox_t ============== allow chrome_sandbox_t zero_device_t:chr_file execute;
Miroslav, Add dev_rwx_zero(chrome_sandbox_t)
This must be a plugin/X that is checking the access on /dev/zero. grep -r dev_rwx_zero . ./policy/modules/services/xserver.te:dev_rwx_zero(xdm_t) ./policy/modules/services/xserver.te:dev_rwx_zero(xserver_t) ./policy/modules/system/init.te: dev_rwx_zero(initrc_t) ./policy/modules/kernel/devices.if:interface(`dev_rwx_zero',` ./policy/modules/apps/chrome.te:dev_rwx_zero(chrome_sandbox_t) ./policy/modules/apps/sandbox.te:dev_rwx_zero(sandbox_xserver_t) ./policy/modules/apps/mplayer.te:dev_rwx_zero(mencoder_t) ./policy/modules/apps/mplayer.te:dev_rwx_zero(mplayer_t) ./policy/modules/apps/nsplugin.te:dev_rwx_zero(nsplugin_t) ./policy/modules/admin/kudzu.te:dev_rwx_zero(kudzu_t) ./policy/modules/admin/vbetool.te:dev_rwx_zero(vbetool_t)
Fixed in selinux-policy-3.6.32-107.fc12
selinux-policy-3.6.32-108.fc12 has been submitted as an update for Fedora 12. http://admin.fedoraproject.org/updates/selinux-policy-3.6.32-108.fc12
selinux-policy-3.6.32-108.fc12 has been pushed to the Fedora 12 testing repository. If problems still persist, please make note of it in this bug report. If you want to test the update, you can install it with su -c 'yum --enablerepo=updates-testing update selinux-policy'. You can provide feedback for this update here: http://admin.fedoraproject.org/updates/selinux-policy-3.6.32-108.fc12
selinux-policy-3.6.32-108.fc12 has been pushed to the Fedora 12 stable repository. If problems still persist, please make note of it in this bug report.