kernel-packages team mailing list archive

[Chris Jeker <chjeker@xxxxxxx>]

I changed the following under Ubuntu 14.10:
File /usr/lib/xymon/client/ext/libs
69c69
< my $kernel_image_read_command = "strings '$newest_kernel_image'";
---
> my $kernel_image_read_command = "$SUDO strings '$newest_kernel_image'";

ext$ ./libs
strings: /boot/vmlinuz-3.16.0-23-generic: Permission denied
status unknown.libs yellow Tue Oct 28 09:30:03 2014 - libs NOT ok
&yellow Kernel image /boot/vmlinuz-3.16.0-23-generic unreadable. Can't check kernel version!

ext$ ./libs_patched
BFD: /boot/vmlinuz-3.16.0-23-generic: Warning: Ignoring section flag IMAGE_SCN_MEM_NOT_PAGED in section .bss
status unknown.libs yellow Tue Oct 28 09:30:09 2014 - libs NOT ok
&green Newest kernel is running: 3.16.0-23-generic, version #31-Ubuntu SMP Tue Oct 21 17:56:17 UTC 2014

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https://bugs.launchpad.net/bugs/759725

Title:
  The kernel is no longer readable by non-root users

Status in “hobbit-plugins” package in Ubuntu:
  In Progress
Status in “linux” package in Ubuntu:
  Won't Fix

Bug description:
  The mode of the latest kernel has changed so it is no longer readable
  by non-root users:

  -rw-r--r-- 1 root root 4336016 2010-10-17 01:37 /boot/vmlinuz-2.6.35-22-generic
  -rw-r--r-- 1 root root 4336912 2010-11-24 12:46 /boot/vmlinuz-2.6.35-23-generic
  -rw-r--r-- 1 root root 4523072 2011-03-08 18:47 /boot/vmlinuz-2.6.38-6-generic
  -rw------- 1 root root 4523936 2011-04-11 05:24 /boot/vmlinuz-2.6.38-8-generic

  This prevents people from using this kernel to boot qemu
  virtual machines as non-root.

  Please change the mode back to make the kernel readable.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: linux-image-2.6.38-8-generic 2.6.38-8.42
  Regression: Yes
  Reproducible: Yes
  ProcVersionSignature: Ubuntu 2.6.35-22.35-generic 2.6.35.4
  Uname: Linux 2.6.35-22-generic x86_64
  AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code 2: ls: cannot access /dev/snd/: No such file or directory
  AplayDevices: aplay: device_list:240: no soundcards found...
  Architecture: amd64
  ArecordDevices: arecord: device_list:240: no soundcards found...
  CRDA: Error: [Errno 2] No such file or directory
  Date: Wed Apr 13 13:05:01 2011
  HibernationDevice: RESUME=UUID=112bf9c4-620e-441f-abb3-aeac6aa15294
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
  IwConfig:
   lo        no wireless extensions.
   
   eth0      no wireless extensions.
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: Red Hat KVM
  PciMultimedia:
   
  ProcEnviron:
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic root=UUID=1efa0b67-17df-484e-980c-8544fa2149fe ro quiet splash
  RelatedPackageVersions:
   linux-restricted-modules-2.6.35-22-generic N/A
   linux-backports-modules-2.6.35-22-generic  N/A
   linux-firmware                             1.50
  RfKill:
   
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/01/2007
  dmi.bios.vendor: Seabios
  dmi.bios.version: 0.5.1
  dmi.chassis.type: 1
  dmi.chassis.vendor: Red Hat
  dmi.modalias: dmi:bvnSeabios:bvr0.5.1:bd01/01/2007:svnRedHat:pnKVM:pvrRHEL6.0.0PC:cvnRedHat:ct1:cvr:
  dmi.product.name: KVM
  dmi.product.version: RHEL 6.0.0 PC
  dmi.sys.vendor: Red Hat

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