On Wed, 2010-01-20 at 10:12 -0500, Daniel J Walsh wrote: > On 01/20/2010 08:51 AM, Stephen Smalley wrote: > > On Wed, 2010-01-20 at 13:47 +0100, Göran Uddeborg wrote: > >> Stephen Smalley: > >>> To get object information, you need to enable > >>> syscall auditing, and add a trivial syscall filter to turn on pathname > >>> collection by the audit subsystem. > >> > >> Thanks for that tip (all of you who gave it)! I now know it is > >> /dev/fb that plymouthd can't access. The audit record also told me it > >> was owned by a regular user and mode rw-------. So now it makes > >> sense. A root process would need dac_override to open that file. > > > > That tip really ought to get captured in the Fedora SELinux FAQ or > > Guide. Dan? > > > > You mean turning on full auditing if you have a suspicious DAC_OVERRIDE? More generally, if you want full pathname information for an AVC denial and you aren't getting it in the AVC message, you can get it by adding a trivial audit syscall filter and re-trying the operation, where adding a trivial audit syscall filter can be done by any of the three examples given by Steve Grubb, Eric, or myself - take your pick. It can be done temporarily just by running auditctl or on every boot by adding the entry to /etc/audit/audit.rules. -- Stephen Smalley National Security Agency -- selinux mailing list selinux@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/selinux
