-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Antonio Olivares wrote: > --- On Fri, 11/14/08, Daniel J Walsh <dwalsh@xxxxxxxxxx> wrote: > >> From: Daniel J Walsh <dwalsh@xxxxxxxxxx> >> Subject: Re: SELinux is preventing gdm-binary (xdm_t) "unlink" to ... and npviewer >> To: olivares14031@xxxxxxxxx >> Cc: fedora-selinux-list@xxxxxxxxxx >> Date: Friday, November 14, 2008, 6:08 AM > Antonio Olivares wrote: >>>> Dear selinux experts, >>>> >>>> running fedora 10 preview updated to latest packages >>>> >>>> [olivares@riohigh2 ~]$ uname -r >>>> 2.6.27.5-101.fc10.i686 >>>> [olivares@riohigh2 ~]$ rpm -qa selinux* >>>> selinux-policy-3.5.13-18.fc10.noarch >>>> selinux-policy-targeted-3.5.13-18.fc10.noarch >>>> >>>> >>>> Summary: >>>> >>>> SELinux is preventing gdm-binary (xdm_t) > "unlink" to >>>> ./force-display-on-active-vt (var_spool_t). >>>> >>>> Detailed Description: >>>> >>>> SELinux is preventing gdm-binary (xdm_t) > "unlink" to >>>> ./force-display-on-active-vt (var_spool_t). The > SELinux type var_spool_t, is a >>>> generic type for all files in the directory and very > few processes (SELinux >>>> Domains) are allowed to write to this SELinux type. > This type of denial usual >>>> indicates a mislabeled file. By default a file created > in a directory has the >>>> gets the context of the parent directory, but SELinux > policy has rules about the >>>> creation of directories, that say if a process running > in one SELinux Domain >>>> (D1) creates a file in a directory with a particular > SELinux File Context (F1) >>>> the file gets a different File Context (F2). The > policy usually allows the >>>> SELinux Domain (D1) the ability to write, unlink, and > append on (F2). But if for >>>> some reason a file (./force-display-on-active-vt) was > created with the wrong >>>> context, this domain will be denied. The usual > solution to this problem is to >>>> reset the file context on the target file, restorecon > -v >>>> './force-display-on-active-vt'. If the file > context does not change from >>>> var_spool_t, then this is probably a bug in policy. > Please file a bug report >>>> (http://bugzilla.redhat.com/bugzilla/enter_bug.cgi) > against the selinux-policy >>>> package. If it does change, you can try your > application again to see if it >>>> works. The file context could have been mislabeled by > editing the file or moving >>>> the file from a different directory, if the file keeps > getting mislabeled, check >>>> the init scripts to see if they are doing something to > mislabel the file. >>>> Allowing Access: >>>> >>>> You can attempt to fix file context by executing > restorecon -v >>>> './force-display-on-active-vt' >>>> >>>> Fix Command: >>>> >>>> restorecon './force-display-on-active-vt' >>>> >>>> Additional Information: >>>> >>>> Source Context > system_u:system_r:xdm_t:s0-s0:c0.c1023 >>>> Target Context > system_u:object_r:var_spool_t:s0 >>>> Target Objects > ./force-display-on-active-vt [ file ] >>>> Source gdm-binary >>>> Source Path /usr/sbin/gdm-binary >>>> Port <Unknown> >>>> Host riohigh2 >>>> Source RPM Packages gdm-2.24.0-12.fc10 >>>> Target RPM Packages >>>> Policy RPM > selinux-policy-3.5.13-18.fc10 >>>> Selinux Enabled True >>>> Policy Type targeted >>>> MLS Enabled True >>>> Enforcing Mode Enforcing >>>> Plugin Name mislabeled_file >>>> Host Name riohigh2 >>>> Platform Linux riohigh2 > 2.6.27.5-94.fc10.i686 #1 SMP Mon >>>> Nov 10 15:51:55 EST 2008 > i686 athlon >>>> Alert Count 17 >>>> First Seen Mon 03 Nov 2008 07:08:33 > AM CST >>>> Last Seen Thu 13 Nov 2008 04:21:21 > PM CST >>>> Local ID > a66adf6c-89d5-4d90-83ca-f34c94bb4d45 >>>> Line Numbers >>>> >>>> Raw Audit Messages >>>> >>>> node=riohigh2 type=AVC msg=audit(1226614881.881:36): > avc: denied { unlink } for pid=2090 > comm="gdm-binary" > name="force-display-on-active-vt" dev=sda6 > ino=190494 scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 > tcontext=system_u:object_r:var_spool_t:s0 tclass=file >>>> node=riohigh2 type=SYSCALL > msg=audit(1226614881.881:36): arch=40000003 syscall=10 > success=no exit=-13 a0=8063b84 a1=0 a2=4f86dc a3=9940400 > items=0 ppid=1 pid=2090 auid=4294967295 uid=0 gid=0 euid=0 > suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) > ses=4294967295 comm="gdm-binary" > exe="/usr/sbin/gdm-binary" > subj=system_u:system_r:xdm_t:s0-s0:c0.c1023 key=(null) >>>> > THe question here is which process created this file? > force-display-on-active-vt > >>>> >>>> Summary: >>>> >>>> SELinux is preventing the npviewer.bin from using > potentially mislabeled files > (/home/olivares/.icedteaplugin/icedtea-plugin-to-appletviewer). >>>> Detailed Description: >>>> >>>> SELinux has denied npviewer.bin access to potentially > mislabeled file(s) > (/home/olivares/.icedteaplugin/icedtea-plugin-to-appletviewer). > This means that >>>> SELinux will not allow npviewer.bin to use these > files. It is common for users >>>> to edit files in their home directory or tmp > directories and then move (mv) them >>>> to system directories. The problem is that the files > end up with the wrong file >>>> context which confined applications are not allowed to > access. >>>> Allowing Access: >>>> >>>> If you want npviewer.bin to access this files, you > need to relabel them using >>>> restorecon -v > '/home/olivares/.icedteaplugin/icedtea-plugin-to-appletviewer'. >>>> You might want to relabel the entire directory using > restorecon -R -v '<Unknown>'. >>>> Additional Information: >>>> >>>> Source Context > unconfined_u:unconfined_r:nsplugin_t:s0-s0:c0.c102 >>>> 3 >>>> Target Context > unconfined_u:object_r:user_home_t:s0 >>>> Target Objects > /home/olivares/.icedteaplugin/icedtea-plugin-to- >>>> appletviewer [ fifo_file > ] >>>> Source npviewer.bin >>>> Source Path > /usr/lib/nspluginwrapper/npviewer.bin >>>> Port <Unknown> >>>> Host riohigh2 >>>> Source RPM Packages > nspluginwrapper-1.1.2-4.fc10 >>>> Target RPM Packages >>>> Policy RPM > selinux-policy-3.5.13-18.fc10 >>>> Selinux Enabled True >>>> Policy Type targeted >>>> MLS Enabled True >>>> Enforcing Mode Enforcing >>>> Plugin Name home_tmp_bad_labels >>>> Host Name riohigh2 >>>> Platform Linux riohigh2 > 2.6.27.5-101.fc10.i686 #1 SMP Wed >>>> Nov 12 00:50:43 EST 2008 > i686 athlon >>>> Alert Count 4 >>>> First Seen Thu 13 Nov 2008 06:31:50 > PM CST >>>> Last Seen Thu 13 Nov 2008 06:31:55 > PM CST >>>> Local ID > 81d406be-b7e4-4bf4-a8c7-f12b7c36ee27 >>>> Line Numbers >>>> >>>> Raw Audit Messages >>>> >>>> node=riohigh2 type=AVC msg=audit(1226622715.909:38): > avc: denied { write } for pid=4732 > comm="npviewer.bin" > path="/home/olivares/.icedteaplugin/icedtea-plugin-to-appletviewer" > dev=sda6 ino=263881 > scontext=unconfined_u:unconfined_r:nsplugin_t:s0-s0:c0.c1023 > tcontext=unconfined_u:object_r:user_home_t:s0 > tclass=fifo_file >>>> node=riohigh2 type=AVC msg=audit(1226622715.909:38): > avc: denied { read } for pid=4732 > comm="npviewer.bin" > path="/home/olivares/.icedteaplugin/icedtea-appletviewer-to-plugin" > dev=sda6 ino=263847 > scontext=unconfined_u:unconfined_r:nsplugin_t:s0-s0:c0.c1023 > tcontext=unconfined_u:object_r:user_home_t:s0 > tclass=fifo_file >>>> node=riohigh2 type=SYSCALL > msg=audit(1226622715.909:38): arch=40000003 syscall=11 > success=yes exit=0 a0=9e70d28 a1=9e71d40 a2=9e72210 a3=0 > items=0 ppid=3572 pid=4732 auid=500 uid=500 gid=500 euid=500 > suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 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) >>>> >>>> >>>> Has someone else encountered these before and what > should I do about them? >>>> Thanks, >>>> >>>> Antonio >>>> >>>> >>>> >>>> >>>> -- >>>> fedora-selinux-list mailing list >>>> fedora-selinux-list@xxxxxxxxxx >>>> > https://www.redhat.com/mailman/listinfo/fedora-selinux-list > If you change the context of this directory to > > chcon -R -t nsplugin_home_t ~/.icedteaplugin > > You should eliminate this avc. I will change the layout in > selinux-policy-3.5.13-21.fc10 > I tried the chcon command and this is what happened > Nov 14 20:00:05 localhost kernel: type=1400 audit(1226714405.352:155): avc: denied { write } for pid=5155 comm="npviewer.bin" path="/home/olivares/.icedteaplugin/icedtea-plugin-to-appletviewer" dev=dm-0 ino=7734395 scontext=unconfined_u:unconfined_r:nsplugin_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=fifo_file > Nov 14 20:00:05 localhost kernel: type=1400 audit(1226714405.352:156): avc: denied { read } for pid=5155 comm="npviewer.bin" path="/home/olivares/.icedteaplugin/icedtea-appletviewer-to-plugin" dev=dm-0 ino=7734394 scontext=unconfined_u:unconfined_r:nsplugin_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=fifo_file > Nov 14 20:00:05 localhost kernel: type=1400 audit(1226714405.388:157): avc: denied { write } for pid=5159 comm="npviewer.bin" path="/home/olivares/.icedteaplugin/icedtea-plugin-to-appletviewer" dev=dm-0 ino=7734395 scontext=unconfined_u:unconfined_r:nsplugin_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=fifo_file > Nov 14 20:00:05 localhost kernel: type=1400 audit(1226714405.388:158): avc: denied { read } for pid=5159 comm="npviewer.bin" path="/home/olivares/.icedteaplugin/icedtea-appletviewer-to-plugin" dev=dm-0 ino=7734394 scontext=unconfined_u:unconfined_r:nsplugin_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=fifo_file > Nov 14 20:00:15 localhost kernel: type=1400 audit(1226714415.618:159): avc: denied { write } for pid=5166 comm="npviewer.bin" path="/home/olivares/.icedteaplugin/icedtea-plugin-to-appletviewer" dev=dm-0 ino=7734395 scontext=unconfined_u:unconfined_r:nsplugin_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=fifo_file > Nov 14 20:00:15 localhost kernel: type=1400 audit(1226714415.618:160): avc: denied { read } for pid=5166 comm="npviewer.bin" path="/home/olivares/.icedteaplugin/icedtea-appletviewer-to-plugin" dev=dm-0 ino=7734394 scontext=unconfined_u:unconfined_r:nsplugin_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=fifo_file > Nov 14 20:00:15 localhost kernel: type=1400 audit(1226714415.654:161): avc: denied { write } for pid=5169 comm="npviewer.bin" path="/home/olivares/.icedteaplugin/icedtea-plugin-to-appletviewer" dev=dm-0 ino=7734395 scontext=unconfined_u:unconfined_r:nsplugin_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=fifo_file > Nov 14 20:00:15 localhost kernel: type=1400 audit(1226714415.654:162): avc: denied { read } for pid=5169 comm="npviewer.bin" path="/home/olivares/.icedteaplugin/icedtea-appletviewer-to-plugin" dev=dm-0 ino=7734394 scontext=unconfined_u:unconfined_r:nsplugin_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=fifo_file > Nov 14 20:00:22 localhost kernel: type=1400 audit(1226714422.242:163): avc: denied { write } for pid=5176 comm="npviewer.bin" path="/home/olivares/.icedteaplugin/icedtea-plugin-to-appletviewer" dev=dm-0 ino=7734395 scontext=unconfined_u:unconfined_r:nsplugin_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=fifo_file > Nov 14 20:00:22 localhost kernel: type=1400 audit(1226714422.242:164): avc: denied { read } for pid=5176 comm="npviewer.bin" path="/home/olivares/.icedteaplugin/icedtea-appletviewer-to-plugin" dev=dm-0 ino=7734394 scontext=unconfined_u:unconfined_r:nsplugin_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=fifo_file > Nov 14 20:00:22 localhost kernel: type=1400 audit(1226714422.279:165): avc: denied { write } for pid=5179 comm="npviewer.bin" path="/home/olivares/.icedteaplugin/icedtea-plugin-to-appletviewer" dev=dm-0 ino=7734395 scontext=unconfined_u:unconfined_r:nsplugin_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=fifo_file > Nov 14 20:00:22 localhost kernel: type=1400 audit(1226714422.279:166): avc: denied { read } for pid=5179 comm="npviewer.bin" path="/home/olivares/.icedteaplugin/icedtea-appletviewer-to-plugin" dev=dm-0 ino=7734394 scontext=unconfined_u:unconfined_r:nsplugin_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=fifo_file > ^C > [root@localhost ~]# chcon -R -t nsplugin_home_t ~/.icedteaplugin > chcon: cannot access `/root/.icedteaplugin': No such file or directory > Thanks, > Antonio You need to do it on your homedir. chcon -R -t nsplugin_home_t /home/olivares/.icedteaplugin -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iEYEARECAAYFAkkhi0YACgkQrlYvE4MpobO/oACg5NGTHl+/8iFrKemEsgRt7Lzj rhAAn0Z/fS83Ae9J2XtyE9JBAC/vwsGo =H1lb -----END PGP SIGNATURE----- -- fedora-selinux-list mailing list fedora-selinux-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-selinux-list
