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Security update for Linux kernel

Knowledgebase

(Last modified: 27SEP2004)


solutions Security update for Linux kernel SuSE Linux Maintenance Web (8286d313f87e1e460c4843010ab65fbd)

Applies to

Product(s): SUSE LINUX Retail Solution 8
SuSE Linux School Server for i386
SuSE Linux Standard Server 8
SuSE Linux Enterprise Server 8 for x86
SuSE Linux Openexchange Server 4

Package: k_athlon
k_deflt
k_psmp
k_smp
k_debug
kernel-source
Release: 20040927
Obsoletes: dbc215d55e9edffea73ca0940dd2aa6d

Indications

Everyone using the Linux Kernel on x86 architecture should update.

Contraindications

None.

Problem description

This updates fixes following security issues:
  • A kNFSD security problem. An attacker with write access to an NFS share could crash the machine.
Additionally it fixes and addresses the following bugs:
All architectures:
  • Several auditing related problems were addressed and fixed.
  • Fixed a kiovec free Oops with LVM snapshotting.
  • Fix race condition in sg.c I/O completion.
  • Use asynchronous keventd to avoid async IO deadlock.
  • Fixed several scsi scan issues, especially ghost luns.
  • Fixed NFSD exiting on TCP recvfrom errors.
  • On encountering I/O errors on write, make sure we return -EIO.
  • Prevent kernel oops in ip6t_LOG (with ipv6 firewalling enabled).
  • Fix JFS resize bug on big-endian architectures.
  • New drbd module, version 0.6.13, fixes data corruption if secondary node fails during sync.
  • Build drbd module correctly on x86_64.

Solution

Please install the updates provided at the location noted below.

Installation notes

This update is provided as an RPM package that can easily be installed onto a running system.
First, find out which kernel package to use, for example with
rpm -qf /boot/vmlinuz
Download the kernel image fitting your setup and install it with either:
  • rpm -Fvh k_deflt-2.4.*.i586.rpm for the default kernel image, or
  • rpm -Fhv k_athlon-2.4.*.i586.rpm for the AMD Athlon optimized kernel image, or
  • rpm -Fhv k_smp-2.4.*.i586.rpm for the SMP kernel image, or
  • rpm -Fhv k_psmp-2.4.*.i586.rpm for the PSMP kernel image
Please do only install one of these kernels, not all of them.
In case you are using LILO as bootmanager, please make sure that you also execute the command
lilo
after installing the update for the system to remain bootable.
Finally, reboot the system with
shutdown -r now
to load the new kernel (replace "now" with the appropriate amount of time to allow local users to cleanly log out, for example "+5" for five minutes.)

links to download packages

Download Source Packages

Download the source code of the patches for maintained products.


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