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Security udpate for Linux kernel


(Last modified: 15OCT2004)

solutions Security udpate for Linux kernel SuSE Linux Maintenance Web (3b348705115345dd199519bf7bf3d38f)

Applies to

Package: kernel-s390x
Product(s): SUSE CORE 9 for IBM zSeries 64bit
Patch: patch-9414
Release: 20041015
Obsoletes: b7773a702a5dde0d2a37f2757b87c273


Everyone should install this kernel.




Some potential security problems and bugs have been found in the Linux kernel for SLES9. This update corrects these issues.
Security fixes
  • With the iptables firewall enabled in a certain configuration (as done by SuSEFirewall2) a handcrafted IP packet from a remote attacker could crash the system.
  • The privileged "sacf" instruction on S/390 was not correctly protected, so local users could gain root access.
  • Some minor additional /proc information leaks were fixed.
Bug fixes
  • Two CD writing problems were fixed, one in block IO handling and one in highmem bounce buffer handling (for machines with more than 1GB RAM).
  • A problem with write barriers not being issued on IDE drives that default to write cache set to off was fixed.
  • Make sure O_SYNC writes return -EIO for write errors.
  • Some block IO related fixes for the ASMlib kernel driver.
  • Support for O_NOATIME in open() system call, fixing an LVM related problem.
  • Do not clear/remove referenced pages in BLKFLSBUF ioctl().
  • Fixed an iptables logging oops caused by ifdown/ifup sequences.
  • Do not propagate TCP errors to nfsd to avoid nfsd dieing.
  • Fixed some RAID 1 problems for read retry problems and device removal.
  • Do not mark inherited ACLs dirty.
  • Do not attach upper level SCSI drivers to raid control ports, such as the LSI/Engenio.
  • Fixed a USB 2.0 EHCI problem with list scanning on SMP systems.
  • Fixed a memory corruption in libata.
IBM S/390 and IBM zSeries specific bug fixes
  • Implement PTRACE_GETEVENTMSG 32bit emulation. (LTC8916)
  • Fixed a deadlock issue in the LCS network driver. (LTC9897)
  • IBM codedrop 30-08-2004: add patches.arch/s390-07-[01-15]-april2004.diff
    • Fix LCS device stall.
    • Fix Multicast handling.
    • Various additional fixes.


Please install the updates provided at the location noted below.

Installation notes

This update is provided as RPM packages that can easily be installed onto a running system by using this command:
rpm -Fvh kernel-s390x.rpm kernel-source.rpm kernel-syms.rpm zipl
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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