Description of problem: On a fresh installation of Fedora 7 I get AVC messages from switching on/off a USB printer. I haven't entirely narrowed down exactly what event triggers it. Version-Release number of selected component (if applicable): udev-113-12.fc7 selinux-policy-targeted-2.6.4-48.fc7 How reproducible: Happens fairly often Actual results: type=AVC msg=audit(1193049275.168:136): avc: denied { relabelfrom } for pid=30030 comm="udevd" name="par0" dev=tmpfs ino=820907 scontext=system_u:system_r:udev_t:s0-s0:c0.c1023 tcontext=system_u:object_r:device_t:s0 tclass=lnk_file Additional info: [root@cyberelk ~]# ls -l /dev/par0 lrwxrwxrwx 1 root root 3 2007-10-22 11:35 /dev/par0 -> lp0 [root@cyberelk ~]# rpm -qf /dev/par0 file /dev/par0 is not owned by any package [root@cyberelk ~]# ls -Z /dev/par0 /dev/lp0 crw-rw---- root lp system_u:object_r:printer_device_t /dev/lp0 lrwxrwxrwx root root system_u:object_r:device_t /dev/par0 -> lp0
This looks like a bug in udev. udev should not be relableing a symlink to printer_device_t. matchpatchon("/dev/par0", SYMLINK) returns device_t, So this seems like a udev bug.
should udev relabel a symlink at all?
Not in current policy. Current policy expects all symlinks to be device_t. So you either need to call matchpatchon with the correct stat and this would get back device_t. Or do nothing.
*** Bug 358861 has been marked as a duplicate of this bug. ***
hopefully, udev-118-5.fc9
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