On Thu, 2007-02-22 at 13:56 -0500, Daniel J Walsh wrote:
> Davide Bolcioni wrote:
> > Greeetings,
> > I just tried the following:
> >
> > yum install kernel-devel.x86_64
> >
> > and got
> >
> > Installing: kernel-devel ######################### [1/1]
> > error: %post(kernel-devel-2.6.19-1.2911.fc6.x86_64) scriptlet failed, exit
> > status 255
> >
> > the failure seems to be related to the following in the audit log:
> >
> > type=AVC msg=audit(1172166288.763:92): avc: denied { transition } for
> > pid=7023 comm="yum" name="bash" dev=dm-1 ino=409636
> > scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023
> > tcontext=system_u:system_r:rpm_script_t:s0-s0:c0.c1023 tclass=process
> > type=SYSCALL msg=audit(1172166288.763:92): arch=c000003e syscall=59 success=no
> > exit=-13 a0=3b5afef a1=7fff58604730 a2=4112960 a3=5f74c70 items=0 ppid=6779
> > pid=7023 auid=503 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0
> > tty=pts0 comm="yum" exe="/usr/bin/python"
> > subj=system_u:system_r:xdm_t:s0-s0:c0.c1023 key=(null)
> > type=AVC_PATH msg=audit(1172166288.763:92): path="/bin/bash"
> >
> > which I understand being a failure to exec() bash, correct ?
> >
> > Apparently, yum is running as system_u:system_r:xdm_t, which I find somewhat
> > surprising, but still.
> >
> > Thank you for your consideration,
> > Davide Bolcioni
> >
>
> There is a problem in the latest version of pam_selinux that is causing
> this problem.
>
> You can either revert to the previous version of pam or wait for the
> next update.
gdm at least doesn't use pam_selinux AFAICS, so it wouldn't be affected
by the pam_selinux bug.
If you log out and log back in, is your session still running in xdm_t?
That is definitely wrong.
--
Stephen Smalley
National Security Agency
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