[Bug runtime/6903] New: scripts can be run by non-sudo and non-stapdev users

["scox at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

# It is expected that running a systemtap script will fail for normal users

> /usr/bin/stap -e 'probe begin { printf("hello\n"); exit() }'
Copy failed ("/tmp/stap7JpfJ9/stap_0a799d701652d96117065a219429e3fa_284.ko" to
"/home/scox/.systemtap/cache/0a/stap_0a799d701652d96117065a219429e3fa_284.ko"):
Permission denied
ERROR: You are trying to run stap as a normal user.

# However recent versions of stap incorrectly succeed for normal users
>  stap -V
SystemTap translator/driver (version 0.7.1/0.135 git branch master, commit e071e49b)


> id
uid=2558(scox) gid=2563(scox) groups=2563(scox)

# stap complains about caching but otherwise the script seems to work okay

# stap -e 'probe process("/bin/ls").end {printf("in probe process")}'
Copy failed ("/tmp/stapd07mpW/stap_cdf5233cb3f66091de60800627346256_233.ko" to
"/home/scox/.systemtap/cache/cd/stap_cdf5233cb3f66091de60800627346256_233.ko"):
Permission denied
in probe processin probe process^C> 

> /usr/local/bin/stap -e 'probe begin { printf("hello\n"); exit() }'
Copy failed ("/tmp/stapXuiEoI/stap_a525970ce776d4cd67c058513e04a605_303.ko" to
"/home/scox/.systemtap/cache/a5/stap_a525970ce776d4cd67c058513e04a605_303.ko"):
Permission denied
hello

-- 
           Summary: scripts can be run by non-sudo and non-stapdev users
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: runtime
        AssignedTo: systemtap at sources dot redhat dot com
        ReportedBy: scox at redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=6903

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