setfsuid

From: LA Walsh (law@sgi.com)
Date: Wed Mar 07 2001 - 15:03:32 EST

Next message: Peter Mottram: "OOPS: kernel BUG at slabc:1095! [was: 2.4.x total system crash - nooops (SCSI problems?)]"
Previous message: Pozsar Balazs: "can't read DVD (under 2.4.[12] & 2.2.17)"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

Why doesn't setfsuid return -EPERM when it can't perform the operation?
file: kernel/sys.c, 'sys_setfsuid' around line 779 depending on your
source version.

There is a check if capable(CAP_SETUID), that if it fails, doesn't
return an error. This seems inconsistent. In fact the manpage
I have on it states:

RETURN VALUE
       On success, the previous value of fsuid is returned. On
       error, the current value of fsuid is returned.
BUGS
       No error messages of any kind are returned to the caller.
       At the very least, EPERM should be returned when the call
       fails.

-l

-- 
L A Walsh                        | Trust Technology, Core Linux, SGI
law@sgi.com                      | Voice: (650) 933-5338
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Next message: Peter Mottram: "OOPS: kernel BUG at slabc:1095! [was: 2.4.x total system crash - nooops (SCSI problems?)]"
Previous message: Pozsar Balazs: "can't read DVD (under 2.4.[12] & 2.2.17)"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

This archive was generated by hypermail 2b29 : Wed Mar 07 2001 - 21:00:23 EST