setuid programs hang when run by non-root users in RH9
Matthew Fisher
matthew at medicalimagingkc.com
Tue Aug 10 20:52:17 UTC 2004
This problem didn't quit fit into the "install" list, so I thought I'd
try my luck here...
Also, if this question is answered somewhere in the mailing list
archives--forgive me;
I've spent the better part of six hours looking all over google results,
etc. to no avail,
and only had the heart for a cursory glance here...
On a fresh install of Red Hat 9 (Shrike), with no
patches/updates/compiled software,
when I'm logged in as root "ping", "su", and other setuid binaries run
fine. However,
when a normal user account tries to run any of them (and I've tried
multiple accounts),
they hang. Ctrl-c and Ctrl-z (etc.) have no effect.
The process list shows:
5151 pts/0 Z 0:00 [ping <defunct>]
5150 pts/0 T 0:00 [ping]
The only thing that can be done is open another session and kill the
process (with SIGKILL).
Another oddity is that once it's killed, unlike other processes that
immediately show "Killed",
the console that was running the setuid program returns, but reports
that it received
"Suspended (signal)" until I issue a "fg" command--then shows
"Killed".
Any help would be greatly appreciated,
Matthew
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