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Bug#387668: marked as done (linux-image-2.6.17-2-powerpc: any user can lower process priority)

Your message dated Mon, 15 Feb 2010 02:18:12 +0100
with message-id <20100215011812.GA20012@galadriel.inutil.org>
and subject line Re: rlimit
has caused the Debian Bug report #387668,
regarding linux-image-2.6.17-2-powerpc: any user can lower process priority
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
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misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
387668: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=387668
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: linux-image-2.6.17-2-powerpc
Version: 2.6.17-9
Severity: normal

Hi,
	since i've upgraded to this kernel, ANY user can
setpriority his processes to lower priorities.


#include <sys/time.h>
#include <sys/resource.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>

int main()
{
	int priority;

	system("id");

	priority = getpriority(PRIO_PROCESS, getpid());

	printf("priority = %d\n", priority);

	if (setpriority(PRIO_PROCESS, getpid(), priority - 1) < 0)
		perror("setpriority");

	priority = getpriority(PRIO_PROCESS, getpid());

	printf("priority = %d\n", priority);

	return 0;
}

uid=1000(benoit) gid=1000(benoit) groupes=20(dialout),24(cdrom), \
	25(floppy),29(audio),44(video),46(plugdev),106(camera), \
	110(hal),116(fuse),118(scanner),1000(benoit)
priority = 0
priority = -1

debsums is OK on my kernel.


-- System Information:
Debian Release: testing/unstable
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: powerpc (ppc)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.17-2-powerpc
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to fr_FR.UTF-8)

Versions of packages linux-image-2.6.17-2-powerpc depends on:
ii  mkvmlinuz                     23         create a kernel to boot a PowerPC 
ii  module-init-tools             3.2.2-3    tools for managing Linux kernel mo
ii  yaird [linux-initramfs-tool]  0.0.12-18  Yet Another mkInitRD

linux-image-2.6.17-2-powerpc recommends no packages.

-- debconf information:
  shared/kernel-image/really-run-bootloader: true
  linux-image-2.6.17-2-powerpc/postinst/create-kimage-link-2.6.17-2-powerpc: true
  linux-image-2.6.17-2-powerpc/preinst/initrd-2.6.17-2-powerpc:
  linux-image-2.6.17-2-powerpc/preinst/lilo-initrd-2.6.17-2-powerpc: true
* linux-image-2.6.17-2-powerpc/preinst/already-running-this-2.6.17-2-powerpc:
  linux-image-2.6.17-2-powerpc/preinst/abort-overwrite-2.6.17-2-powerpc:
  linux-image-2.6.17-2-powerpc/prerm/removing-running-kernel-2.6.17-2-powerpc: true
  linux-image-2.6.17-2-powerpc/postinst/really-run-bootloader-2.6.17-2-powerpc: true
  linux-image-2.6.17-2-powerpc/preinst/elilo-initrd-2.6.17-2-powerpc: true
  linux-image-2.6.17-2-powerpc/postinst/depmod-error-2.6.17-2-powerpc: false
  linux-image-2.6.17-2-powerpc/postinst/kimage-is-a-directory:
  linux-image-2.6.17-2-powerpc/preinst/abort-install-2.6.17-2-powerpc:
  linux-image-2.6.17-2-powerpc/postinst/old-dir-initrd-link-2.6.17-2-powerpc: true
  linux-image-2.6.17-2-powerpc/postinst/old-system-map-link-2.6.17-2-powerpc: true
  linux-image-2.6.17-2-powerpc/postinst/bootloader-test-error-2.6.17-2-powerpc:
  linux-image-2.6.17-2-powerpc/preinst/overwriting-modules-2.6.17-2-powerpc: true
  linux-image-2.6.17-2-powerpc/postinst/bootloader-error-2.6.17-2-powerpc:
  linux-image-2.6.17-2-powerpc/preinst/bootloader-initrd-2.6.17-2-powerpc: true
  linux-image-2.6.17-2-powerpc/postinst/old-initrd-link-2.6.17-2-powerpc: true
  linux-image-2.6.17-2-powerpc/preinst/lilo-has-ramdisk:
  linux-image-2.6.17-2-powerpc/prerm/would-invalidate-boot-loader-2.6.17-2-powerpc: true
  linux-image-2.6.17-2-powerpc/preinst/failed-to-move-modules-2.6.17-2-powerpc:
  linux-image-2.6.17-2-powerpc/postinst/depmod-error-initrd-2.6.17-2-powerpc: false

--- End Message ---
--- Begin Message --- 
On Tue, Sep 08, 2009 at 10:02:59PM +0200, Moritz Muehlenhoff wrote:
> On Fri, Sep 15, 2006 at 11:11:10PM +0200, Benoît Dejean wrote:
> > getrlimit nice gives me rlim_cur=RLIM_INFINITY, rlim_max=RLIM_INFINITY
> > on ppc. I have never touched these settings. I assume these are system
> > default settings which have changed to unexpected and dangerous values
> > (should be 0 i guess).
> 
> Does this still occur with more recent kernels?

No further feedback. If you can still reproduce this with a recent
kernel, pleas reopen.

Cheers,
        Moritz

--- End Message ---
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