Bug 429560

Summary: selinux reveals ssh is leaking a file descriptor
Product: [Fedora] Fedora Reporter: Daniel Walsh <dwalsh>
Component: opensshAssignee: Tomas Mraz <tmraz>
Status: CLOSED RAWHIDE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: low Docs Contact:
Priority: low    
Version: rawhide   
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Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2008-04-07 16:07:41 EDT Type: ---
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Description Flags
I think this patch might fix the problem.
none
This socket needs cloexec instead. none

Description Daniel Walsh 2008-01-21 12:21:36 EST
Description of problem:

When running ssh from a staff user, there is a transition to xauth, so xauth
runs in a different context and SELinux gerates this AVC.

time->Mon Jan 21 11:47:57 2008
type=SYSCALL msg=audit(1200934077.724:113): arch=c000003e syscall=59 success=yes
exit=0 a0=8cbb80 a1=8ca410 a2=8ca070 a3=3c68b599f0 items=0 ppid=5362 pid=5363
auid=3267 uid=3267 gid=3267 euid=3267 suid=3267 fsuid=3267 egid=3267 sgid=3267
fsgid=3267 tty=pts5 comm="xauth" exe="/usr/bin/xauth"
subj=staff_u:staff_r:xauth_t:s0 key=(null)
type=AVC msg=audit(1200934077.724:113): avc:  denied  { read write } for 
pid=5363 comm="xauth" path="socket:[77954]" dev=sockfs ino=77954
scontext=staff_u:staff_r:xauth_t:s0 tcontext=staff_u:staff_r:staff_t:s0
tclass=tcp_socket

THis indicates a leaked file descritor.
Comment 1 Daniel Walsh 2008-01-21 12:22:59 EST
Created attachment 292388 [details]
I think this patch might fix the problem.
Comment 2 Tomas Mraz 2008-01-21 14:14:30 EST
Created attachment 292397 [details]
This socket needs cloexec instead.