Gentoo Archives: gentoo-hardened

From: Alex Efros <powerman@××××××××.name>
To: gentoo-hardened@l.g.o
Subject: [gentoo-hardened] denied marking stack executable
Date: Tue, 15 Jul 2014 21:47:34
Message-Id: 20140715214727.GA29123@home.power
1 Hi!
2
3 I've just tried to run one game which works several months ago and get
4 segfault with this message in kernel log:
5
6 2014-07-15_21:38:42.73335 kern.alert: grsec: denied marking stack executable as requested by PT_GNU_STACK marking in /mnt/storage/games/DungeonDefenders/UDKGame/Binaries/DungeonDefenders-x86 by /lib32/ld-2.17.so[ld-linux.so.2:2818] uid/euid:1000/1000 gid/egid:1000/1000, parent /usr/bin/ldd[ldd:2817] uid/euid:1000/1000 gid/egid:1000/1000
7 2014-07-15_21:38:42.73338 kern.alert: grsec: denied RWX mprotect of <stack> by /lib32/ld-2.17.so[ld-linux.so.2:2818] uid/euid:1000/1000 gid/egid:1000/1000, parent /usr/bin/ldd[ldd:2817] uid/euid:1000/1000 gid/egid:1000/1000
8
9 Looks like it can't be fixed using paxctl-ng, so how to work around it?
10
11 Also, looks like when I try to execute it in most cases it segfault
12 without any messages in kernel log, not sure why.
13
14 --
15 WBR, Alex.

Replies

Subject Author
Re: [gentoo-hardened] denied marking stack executable PaX Team <pageexec@××××××××.hu>