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Re: Audit not recording the correct syscall return value in Fedora 10?



On Tue, May 05, 2009 at 03:50:01PM -0400, Paul Moore wrote:

> No problem.  As far as I'm aware the discussion never went beyond this thread 
> as I was unable to recreate the problem with the (then) current kernels but it 
> may not be a bad idea to get the arch folks and perhaps lkml involved if we 
> can narrow this down a little.

Doesn't reproduce for me with 2.6.30-rc4-git1.

For our SLES11 kernel (2.6.27+patches) I needed your entry_64.S change to fix
the problem.

With just commit 6d208da89aabee8502debe842832ca0ab298d16d I get:

[snippet]

Starting auditd                                                      done
----
time->Thu May  7 12:51:46 2009
type=SYSCALL msg=audit(1241725906.513:121): arch=c000003e syscall=175 success=yes exit=0 a0=7f95478e2000 a1=1e18 a2=61a240 a3=61a240 items=0 ppid=4382 pid=4425 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=ttyS0 ses=1 comm="modprobe" exe="/sbin/modprobe" key=(null)
Shutting down auditd                                                 done
Starting auditd                                                      done
----
time->Thu May  7 12:51:46 2009
type=SYSCALL msg=audit(1241725906.768:128): arch=c000003e syscall=175 success=yes exit=0 a0=7f2425e10000 a1=1e18 a2=61a240 a3=61a240 items=0 ppid=4382 pid=4488 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=ttyS0 ses=1 comm="modprobe" exe="/sbin/modprobe" key=(null)
Shutting down auditd                                                 done
Starting auditd                                                      done
----
time->Thu May  7 12:51:47 2009
type=SYSCALL msg=audit(1241725907.024:135): arch=c000003e syscall=175 success=no exit=-131939334922280 a0=7f9901b9a000 a1=1e18 a2=61a240 a3=61a240 items=0 ppid=4382 pid=4551 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=ttyS0 ses=1 comm="modprobe" exe="/sbin/modprobe" key=(null)
Shutting down auditd                                                 done
Starting auditd                                                      done
----
time->Thu May  7 12:51:47 2009
type=SYSCALL msg=audit(1241725907.288:142): arch=c000003e syscall=175 success=no exit=-131939285508136 a0=7f0807b15000 a1=1e18 a2=61a240 a3=61a240 items=0 ppid=4382 pid=4614 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=ttyS0 ses=1 comm="modprobe" exe="/sbin/modprobe" key=(null)
Shutting down auditd                                                 done
Starting auditd                                                      done
----
time->Thu May  7 12:51:47 2009
type=SYSCALL msg=audit(1241725907.544:149): arch=c000003e syscall=175 success=yes exit=0 a0=7f053f482000 a1=1e18 a2=61a240 a3=61a240 items=0 ppid=4382 pid=4677 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=ttyS0 ses=1 comm="modprobe" exe="/sbin/modprobe" key=(null)
Shutting down auditd 


test case:

for i in `seq 1 100`; do cat /dev/null > /var/log/audit/audit.log;  rmmod dummy; rcauditd restart; auditctl -a entry,always -S init_module; modprobe dummy; ausearch -c modprobe; done

This is on a Core2Duo.

Tony


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