Getting a ton of these alerts when I hit certain pages in firefox. Mostly these are pages that use the binary flash plugin. My /home is managed by autofs. The inode number in the avc alert matches the one here: # stat -Z /home File: `/home' Size: 0 Blocks: 0 IO Block: 1024 directory Device: 14h/20d Inode: 9080 Links: 3 Device type: 0,0 Access: (0755/drwxr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root) S_Context: system_u:object_r:autofs_t:s0 Access: 2008-10-19 09:58:17.771183790 -0400 Modify: 2008-10-19 08:30:21.869180492 -0400 Change: 2008-10-19 08:30:04.456173061 -0400 ------------------[snip]-------------------- Summary: SELinux is preventing npviewer.bin (nsplugin_t) "search" to / (autofs_t). Detailed Description: SELinux denied access requested by npviewer.bin. It is not expected that this access is required by npviewer.bin 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: Sometimes labeling problems can cause SELinux denials. You could try to restore the default system file context for /, restorecon -v '/' If this does not work, there is currently no automatic way to allow this access. Instead, you can generate a local policy module to allow this access - see FAQ (http://fedora.redhat.com/docs/selinux-faq-fc5/#id2961385) Or you can disable SELinux protection altogether. Disabling SELinux protection is not recommended. Please file a bug report (http://bugzilla.redhat.com/bugzilla/enter_bug.cgi) against this package. Additional Information: Source Context unconfined_u:unconfined_r:nsplugin_t:s0-s0:c0.c102 3 Target Context system_u:object_r:autofs_t:s0 Target Objects / [ dir ] Source npviewer.bin Source Path /usr/lib/nspluginwrapper/npviewer.bin Port <Unknown> Host tleilax.poochiereds.net Source RPM Packages nspluginwrapper-1.1.2-2.fc10 Target RPM Packages filesystem-2.4.19-1.fc10 Policy RPM selinux-policy-3.5.13-1.fc10 Selinux Enabled True Policy Type targeted MLS Enabled True Enforcing Mode Enforcing Plugin Name catchall_file Host Name tleilax.poochiereds.net Platform Linux tleilax.poochiereds.net 2.6.27.2-23.rc1.fc10.x86_64 #1 SMP Thu Oct 16 23:42:46 EDT 2008 x86_64 x86_64 Alert Count 893 First Seen Sun 19 Oct 2008 07:48:40 AM EDT Last Seen Sun 19 Oct 2008 09:00:29 AM EDT Local ID ecea1c12-2070-4ef7-862f-363bb6613b11 Line Numbers Raw Audit Messages node=tleilax.poochiereds.net type=AVC msg=audit(1224421229.208:941): avc: denied { search } for pid=3921 comm="npviewer.bin" name="/" dev=autofs ino=9080 scontext=unconfined_u:unconfined_r:nsplugin_t:s0-s0:c0.c1023 tcontext=system_u:object_r:autofs_t:s0 tclass=dir node=tleilax.poochiereds.net type=SYSCALL msg=audit(1224421229.208:941): arch=40000003 syscall=195 per=8 success=no exit=-13 a0=f6f582f8 a1=ff860e24 a2=c80ff4 a3=ff860ffc items=0 ppid=3879 pid=3921 auid=4447 uid=4447 gid=4447 euid=4447 suid=4447 fsuid=4447 egid=4447 sgid=4447 fsgid=4447 tty=(none) ses=1 comm="npviewer.bin" exe="/usr/lib/nspluginwrapper/npviewer.bin" subj=unconfined_u:unconfined_r:nsplugin_t:s0-s0:c0.c1023 key=(null)
You can allow this for now. # audit2allow -M mypol -l -i /var/log/audit/audit.log # semodule -i mypol.pp Fixed in selinux-policy-3.5.13-6.fc10
Thanks Dan. The new package seems to have fixed that one, but I've now noticed two more. These aren't as frequent as the other one, but they seem to pop whenever firefox is started: ----------------------------------------------------------------------------- Summary: SELinux is preventing which (nsplugin_config_t) "search" to / (autofs_t). Detailed Description: SELinux denied access requested by which. It is not expected that this access is required by which 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: Sometimes labeling problems can cause SELinux denials. You could try to restore the default system file context for /, restorecon -v '/' If this does not work, there is currently no automatic way to allow this access. Instead, you can generate a local policy module to allow this access - see FAQ (http://fedora.redhat.com/docs/selinux-faq-fc5/#id2961385) Or you can disable SELinux protection altogether. Disabling SELinux protection is not recommended. Please file a bug report (http://bugzilla.redhat.com/bugzilla/enter_bug.cgi) against this package. Additional Information: Source Context unconfined_u:unconfined_r:nsplugin_config_t:s0-s0: c0.c1023 Target Context system_u:object_r:autofs_t:s0 Target Objects / [ dir ] Source npviewer Source Path /bin/bash Port <Unknown> Host tleilax.poochiereds.net Source RPM Packages which-2.19-3.fc9 Target RPM Packages filesystem-2.4.19-1.fc10 Policy RPM selinux-policy-3.5.13-7.fc10 Selinux Enabled True Policy Type targeted MLS Enabled True Enforcing Mode Enforcing Plugin Name catchall_file Host Name tleilax.poochiereds.net Platform Linux tleilax.poochiereds.net 2.6.27.3-39.fc10.x86_64 #1 SMP Wed Oct 22 21:04:28 EDT 2008 x86_64 x86_64 Alert Count 199 First Seen Sun 19 Oct 2008 07:48:39 AM EDT Last Seen Fri 24 Oct 2008 04:24:18 PM EDT Local ID 22a52ac7-53eb-4ed7-8f3f-4b9ad22370d7 Line Numbers Raw Audit Messages node=tleilax.poochiereds.net type=AVC msg=audit(1224879858.16:61): avc: denied { search } for pid=3462 comm="which" name="/" dev=autofs ino=9233 scontext=unconfined_u:unconfined_r:nsplugin_config_t:s0-s0:c0.c1023 tcontext=system_u:object_r:autofs_t:s0 tclass=dir node=tleilax.poochiereds.net type=SYSCALL msg=audit(1224879858.16:61): arch=c000003e syscall=4 success=no exit=-13 a0=eba030 a1=7fff4c10a080 a2=7fff4c10a080 a3=3b7556da70 items=0 ppid=3459 pid=3462 auid=4447 uid=4447 gid=4447 euid=4447 suid=4447 fsuid=4447 egid=4447 sgid=4447 fsgid=4447 tty=(none) ses=1 comm="which" exe="/usr/bin/which" subj=unconfined_u:unconfined_r:nsplugin_config_t:s0-s0:c0.c1023 key=(null) --------------------------------------------------------------------------- Summary: SELinux is preventing linux32 (nsplugin_config_t) "execute" to ./npviewer.bin (execmem_exec_t). Detailed Description: SELinux denied access requested by linux32. It is not expected that this access is required by linux32 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: Sometimes labeling problems can cause SELinux denials. You could try to restore the default system file context for ./npviewer.bin, restorecon -v './npviewer.bin' If this does not work, there is currently no automatic way to allow this access. Instead, you can generate a local policy module to allow this access - see FAQ (http://fedora.redhat.com/docs/selinux-faq-fc5/#id2961385) Or you can disable SELinux protection altogether. Disabling SELinux protection is not recommended. Please file a bug report (http://bugzilla.redhat.com/bugzilla/enter_bug.cgi) against this package. Additional Information: Source Context unconfined_u:unconfined_r:nsplugin_config_t:s0-s0: c0.c1023 Target Context system_u:object_r:execmem_exec_t:s0 Target Objects ./npviewer.bin [ file ] Source linux32 Source Path /usr/bin/setarch Port <Unknown> Host tleilax.poochiereds.net Source RPM Packages util-linux-ng-2.14.1-3.fc10 Target RPM Packages Policy RPM selinux-policy-3.5.13-7.fc10 Selinux Enabled True Policy Type targeted MLS Enabled True Enforcing Mode Enforcing Plugin Name catchall_file Host Name tleilax.poochiereds.net Platform Linux tleilax.poochiereds.net 2.6.27.3-39.fc10.x86_64 #1 SMP Wed Oct 22 21:04:28 EDT 2008 x86_64 x86_64 Alert Count 38 First Seen Fri 24 Oct 2008 06:48:27 AM EDT Last Seen Fri 24 Oct 2008 04:24:18 PM EDT Local ID cb2cfeeb-ba6a-4f90-837c-4599972d119a Line Numbers Raw Audit Messages node=tleilax.poochiereds.net type=AVC msg=audit(1224879858.19:62): avc: denied { execute } for pid=3459 comm="linux32" name="npviewer.bin" dev=dm-2 ino=459210 scontext=unconfined_u:unconfined_r:nsplugin_config_t:s0-s0:c0.c1023 tcontext=system_u:object_r:execmem_exec_t:s0 tclass=file node=tleilax.poochiereds.net type=SYSCALL msg=audit(1224879858.19:62): arch=c000003e syscall=59 per=8 success=no exit=-13 a0=7fff24987995 a1=7fff24986060 a2=7fff24986088 a3=fefefefefefefeff items=0 ppid=3452 pid=3459 auid=4447 uid=4447 gid=4447 euid=4447 suid=4447 fsuid=4447 egid=4447 sgid=4447 fsgid=4447 tty=(none) ses=1 comm="linux32" exe="/usr/bin/setarch" subj=unconfined_u:unconfined_r:nsplugin_config_t:s0-s0:c0.c1023 key=(null)
nsplugin_config searching automount is fixed in selinux-policy-3.5.13-9.fc10, but the execute execmem_exex_t on linux32 seems to be a locally modified change on your system. linux32/setarch should not be labeled execmem_exec_t.