Gentoo Archives: gentoo-user

From: Helmut Jarausch <jarausch@××××××××××××××××.de>
To: gentoo-user@l.g.o
Subject: [gentoo-user] strace + SUID program
Date: Sat, 03 Oct 2009 15:41:27
Message-Id: tkrat.797942148eaba4ac@igpm.rwth-aachen.de
1 Hi,
2
3 I'm still struggling with a permission problem with fcrontab.
4 On (only) one of two identical (I believe so) machines,
5 fcrontab -e (as non-root user) gives
6 Could not change egid to fcron[449]: Operation not permitted
7
8 Since the fcrontab binary and all used dynamic libs are identical
9 and the permissions on /var/spool/fron (/**/*) are
10 identical on both machines,
11 I tried strace.
12
13 But how to apply strace to an SUID/SGID application.
14 When I say
15
16 strace fcrontab -e
17 it fails with the very same error now even on the machine where it works
18 without strace.
19
20 I'd be glad if someone could throw some light on this
21 strange situation.
22
23 Many thanks,
24 Helmut.
25
26 --
27 Helmut Jarausch
28
29 Lehrstuhl fuer Numerische Mathematik
30 RWTH - Aachen University
31 D 52056 Aachen, Germany

Replies

Subject Author
Re: [gentoo-user] strace + SUID program Stroller <stroller@××××××××××××××××××.uk>