Re: odd chown difference between 2.0 and 2.1pre kernels
Alan Cox (alan@lxorguk.ukuu.org.uk)
Mon, 11 Jan 1999 15:40:02 +0000 (GMT)
> 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.
Except when done by root
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