Re: odd chown difference between 2.0 and 2.1pre kernels

Brandon S. Allbery KF8NH (allbery@kf8nh.apk.net)
Sun, 10 Jan 1999 20:25:58 -0500

In message <19990109215152.C32046@kitenet.net>, Joey Hess writes:
+-----
| On a 2.1pre4 machine:
| root@kite:~>ls -l foo
| -rwsrw-r-- 1 root joey 0 Jan 9 17:13 foo*
| root@kite:~> chown root.root foo; ls -l foo
| -rwsrw-r-- 1 root root 0 Jan 9 17:13 foo*
+--->8

GAK!!! Security flaw here, methinks. chown should unconditionally clear
setuid and setgid.

-- 
brandon s. allbery	[os/2][linux][solaris][japh]	 allbery@kf8nh.apk.net
system administrator	     [WAY too many hats]	   allbery@ece.cmu.edu
carnegie mellon / electrical and computer engineering			 KF8NH
     We are Linux. Resistance is an indication that you missed the point.






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