Posttinstall scriptlets failing ?

[Davide Bolcioni]

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
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