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Security update for Linux Kernel (kernel-source)

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(Last modified: 11DEC2002)


solutions Security update for Linux Kernel (kernel-source) SuSE Linux Maintenance Web (3251b60ee5cfb122238c7fb6ddca7a7a)

Applies to

Product(s): SuSE Linux Enterprise Server 7 for IBM zSeries

Package: kernel-source
Release: 20021211
Obsoletes: none

Indications

This patch is needed only if you need to build the kernel or modules yourself.

Contraindications

None.

Description

This kernel source contains fixes for the following problems:
Security-related fixes
  • Fix a problem in the tcp connection tracking code that could allow an attacker to make a machine unaccessible via the network for long time.
  • Fix security issues in 3270 fullscreen driver and other drivers
  • Fix problem with reparenting in thread group exit
  • Fix the extension header parsing bugs in the IPv6 netfilter code
  • Fix security hole in get_vm_area()
  • Discard SYN packets with the RST or FIN bit set; Linux would previously accept SYN packets with a RST or FIN bit set. This could be used to circumvent some packet filters who assume that these packets cannot open a new connection. This patch discards bogus SYN packets.
General fixes
  • Fix a theoretical race in the memory management (between free_pte() and truncate()) - adds additional checks to be safe against it
  • Fix race with LRU cache handling (also memory management)
  • Fix swapoff bug because of unsafe dirty check
  • Fix unsafe assert when freeing swap pages(could panic)
  • Fix memory leak with swapon/swapoff
  • Fix an O_DIRECT read cornercase problem
  • Fix possibly incorrect TLB flushing under extreme load and memory pressure
  • Fix SMP race in msgrcv (can be triggered only by extensive IPC usage)
Filesystem fixes
  • Fix rare ext3 data journaling race with truncate transactions
  • Fix ext3 data journaling race where files could show foreign data
  • Fix ext3 panic triggered when reading the partition while mounted
  • Fix potential ext3 recovery problem: old data could be in the log
S/390 and zSeries specific fixes
  • Fixes for S/390 IO Layer problems:
    • Fix hangs after a device is gone
    • Fix hangs after a tape attach or attached tape is not recognized
    • Fix fails to detect devices after 'not operational' messages
  • Fix 32-bit Emulation of recvmsg() system call timestamp conversion for input and out parameters
  • Fix CTC not restarting after I/O errors
  • Fix initialisation problems in the dasd discipline drivers
  • Fix initialisation problems when setting up IUCV connections
  • Fix the get block device size function of the xpram driver to i support XPRAM devices larger than 2GB

Installation notes

This update is provided as an RPM package that can be manually installed on a running system by using these command:
rpm -Uvh kernel-source.rpm

links to download packages

Download Source Packages

Download the source code of the patches for maintained products.


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