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Recommended Linux Kernel Update (k_deflt)


(Last modified: 07MAY2002)

solutions Recommended Linux Kernel Update (k_deflt) SuSE Linux Maintenance Web (4bfbafa0afa348fd607e6f3c3555a57d)

Applies to

Product(s): SuSE Linux Enterprise Server for S/390

Package: k_deflt
Release: 20020507
Obsoletes: none


Everyone should install this patch.



Problem description

This recommended Linux kernel update fixes the following problems:
  • DoS vulnerability due to unsufficient checks on symbolic links.
  • System crash due to unsufficient parameter checks in kernel module binfmt_misc.
  • Security problem in the ip_masq_irc masquerading module which could be used to circumvent block of certain TCP ports.
  • ptrace() security problem which allowed to trace suid binaries.
  • TCP SYN cookies security fix.
  • TCP connection lockup due to faulty window update.
  • Numerous small bugs, especially in the IP firewalling/masquerading code
  • Several LVM problems (by backporting LVM version from kernel 2.2.19).
  • Additionally, the following fixes from IBM Developerworks recommended by IBM have been applied:
    • linux-2.2.16-iucv3.tar.gz (fixes segment exception for IUCV on Multiprise systems)
    • linux-2.2.16-dasd_fba.tar.gz (fixes "ccwcache:Channel program to large to fit on one page" error)
    • linux-2.2.16-rva_perf.tar.gz (fixes severe degradation of RVA performance)


    Please install the updates provided at the location noted below. Due to the updated LVM code the new lvm tools (package lvm) are required for LVM users.

    Installation notes

    First install the kernel and LVM RPM packages on the running system:
    rpm -Uvh k_deflt.rpm lvm.rpm
    Afterwards run
    silo -d /dev/dasda
    to install the kernel. Replace "/dev/dasda" with the device name you will IPL from.
    Finally shutdown the linux system with
    shutdown -h now
    (replace "now" with the appropriate time to give local users a chance to gracefully log out, for example "+10" for ten minutes) and re-IPL.

    links to download packages

    Download Source Packages

    Download the source code of the patches for maintained products.


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