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SUSE Linux 9.1 2005-005 Critical: Kernel Security Fixes and Updates

The linux kernel is the core of the SUSE Linux based products. The linux kernel is the core of the SUSE Linux based products. Two weeks ago we released the Service Pack 1 for our SUSE Linux Enterprise Server 9 product. Due to the strict code freeze we were not able to merge all the security fixes from the last kernel update on Jan23rd (SUSE-SA:2005:003) into this kernel.This update merges t [More...]. -----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SUSE Security Announcement Package: kernel Announcement-ID: SUSE-SA:2005:005 Date: Friday, Feb 4th 2005 18:00 MET Affected products: SUSE Linux 9.1 SUSE Linux Enterprise Server 9 Vulnerability Type: critical bugs Severity (1-10): 6 SUSE default package: yes Cross References: Content of this advisory: 1) security vulnerability resolved: - Merged various security fixes from previous kernel update - SUSE Linux 9.1 kernel upgraded to SLES 9 Service Pack 1 2) solution/workaround 3) special instructions and notes 4) package location and checksums 5) pending vulnerabilities, solutions, workarounds: - see SUSE Security Summary report. 6) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion The linux kernel is the core of the SUSE Linux based products. Two weeks ago we released the Service Pack 1 for our SUSE Linux Enterprise Server 9 product. Due to the strict code freeze we were not able to merge all the security fixes from the last kernel update on Jan23rd (SUSE-SA:2005:003) into this kernel. This update merges those missed security fixes and also included critical bug fixes for the SP1 kernel. Other SUSE Linux versions are not included in this update. For our SUSE Linux 9.1 Box customers this update includes an upgrade of the kernel to the kernel level we use with SUSE Linux Enterprise Server 9 + Service Pack 1. Changes for SUSE Linux Enterprise Server 9 customers: The following security bugs were fixed for the Service Pack 1 kernel: - A NFS Direct I/O local denial of service could allow a local attacker to crash the machine. - A previous smbfs security fix was faulty, writes did no longer work on smbfs shares. - Unsigned vs signed problems in the generic SCSI ioctl handler were reported by grsecurity. They have no impact due to the compiler using unsigned arithmetic, but are fixed nevertheless. - ppos /proc file race conditions in the mapped_base and oom_adjust proc files were fixed. Also following critical bugs were fixed: - A bug in the pciconfig sysfs interface could cause incorrect values to be read from and written to PCI config space. - A locking problem in CKRM could lead to a crash. - In low memory situations, large writes would not be serviced in a timely fashion. - The initialization of the bio-> bi_bdev field was incorrect. - VFS callouts for flock were added. - MD on top of Device Mapper based devices was not working and lead to kernel crashes. - Non-fatal errors encountered during read ahead operations caused the device mapper multipath to fail the hardware path. - A race condition in the kernel timer code could lead to kernel crashes under high load. - An inetaddr notification problem with SCTP could lead to machine crashes. For SUSE Linux 9.1 customers additionally the Service Pack 1 kernel changes apply (long list): Platform / Hardware / Driver support * Introduce concept of "cloned" drivers to minimize impact on HW certifications In cases whereupdating driver would have impacted too many hardware certifications we introduced a cloned driver which supports only the new PCI IDs by default. * Support many new hardware components via driver and PCI ID updates: + cloned tg3-new with version 3.10 to support Broadcom 5721 and 5751 + cloned bcm-new with version 7.3.5 to support Broadcom 5721 + updated e1000-new with version 5.3.19 to support one new PCI ID + updated ixgb to version 1.0.82 to support 10 GB Ethernet + updated ipr to version 2.0.10.1 to support new RAID types + updated IBM ServeRAID driver ips to 7.10.18 to fix bugs + updated s2io driver to version 1.7.5.1 + updated qlogic to version 8.00.00 to use official release which is better and binary compatible to version 8.00.00b14 which was used in SLES 9 GA. + updated megaide to version 5.07r to support LSI controllers + updated megaraid_mbox to version 2.20.4.2/2.20.2.4 for new hardware support + updated cciss driver to version 2.6.4 to support SAS + updated gdth to version 3.04 for new hardware support + updated Emulex lpfc driver to version 2.10g for bug fixes + added driver jsm version 1.1 to support Digi Neo PCI serial cards + updated avm_fcdsl driver to support Fritz!Card DSL USB analog driver and Fritz!Card DSL USB 2.0 driver + updated avmfritzcapi to support new Eumex devices + included support for Intel i915 chipset (hwinfo, sax2, xf86) + enhanced driver update dialog to also support USB disks/sticks + fixed 4-port SATA support in the ICH6 driver + updated MPT fusion driver to version 3.01.14.23 + fixed aic7?xx driver probe info + added Altix systemcontroller communication driver + cloned aic79xx-new with version 2.0.12 to support AIC7901 and 39320 + added Qlogic iSCSI support (qla4xxx) + added patches to Infiniband Gen1 code + back ported dpt_i2o from 2.6.8 + updated aacraid driver to version 1.1.2-lk2 from 2.6.9 + added TIO support for SGI Altix * allow modules to use virtual IRQs * e1000 EEH error must not remove device * fix bad cciss unknown ioctl return * update e1000 drivers according to new information from Intel * fix veth dying on ppc64 * fix oops in e1000 driver on x86_64 * fix oops with Nvidia Nforce4 * enable APIC on ES7000 architecture and increase MAX_MP_BUSSES * fix oops with gdth controller on x86_64 * enable new DASD CCW IDs (S/390) * fix some hipersockets bugs and a dasd dbf oops on s390 Filesystems and I/O subsystem * Fixed files > 2 GB in isofs * Merged new Lustre hooks * Updated XFS filesystem and tools to latest CVS snapshot * Updated CIFS to 1.22 * Improved iSCSI and SAN/NAS support with patches from EMC, NetAPP and others * Back ported several NFS bug fixes from upstream/mainline kernel * Integrated patches to allow enabling ext3 reservation code * fix file locking for 32 bit apps running on 64 bit systems * improve NFS performance by avoiding unnecessary silly renames * allow swapfiles > 2G on x86 * fix reiserfs oops on small file systems (< 128 MB) * fix panic and deadlock in XFS direct IO * allow reading from zeropage with O_DIRECT/rawio * add reiserfs performance improvements * fix ACL umask handling over nfs * add several autofs4 fixes * infiniband can also be used on ppc64 * fix oops in aio_free_ring * fix spinlock problem in infiniband drivers * fix ext2/ext3 memory leak * Fix ext3 directIO when extending the journal * kernelstatd should accept NOTIFY calls from high ports Availability * Added multipath fixes for barrier handling * With SP1 we now disabled by default the multipathing fail over support in the QLogic driver as it caused many problems. We print a warning that it is depreciated and how one can still turn it on if needed using ql2xfailover=1 * Provide code to enable recovery from PCI EEH errors * Added CPU hotplug support for S/390 Power management * Added powernow K8 cpufreq support for CG stepping K8 * Added cpufreq support for SMP systems * fix centrino speedstep on x86-64 Serviceability * Integrated bugfix to SHPC PCI hotplug driver * Updated CKRM to E16 and added CPU controller * Updated kdb to version 4.4 * Updated Linux kernel crash dump (lkcd) and lkcdutils * Added SGI Altix hardware performance monitoring API * Exported some symbols needed by ES7000 Service Processor * Added tg3 ethtool stats * Added modular kdb support for x86_64 * Added PAGG support on IPF * fix problem with monitored processes going to sleep on ia64 * correctly display per process CPU utilization * fix double echo on x86-64 KDB * check PROM version on ia64 Altix machines and print early warning * update CKRM to newer revision * fix breakpoints on x86-64 KDB * allow for producing reliable backtraces with lkcd Scalability / Performance * Improved RCU scalability * Fixed scalability problem in dnotify_parent * Assorted scalability improvement for large machines * Support SGI Altix and 512 CPUs with Linux kernel crash dump (LKCD) * Added CPUSET support for IPF * Added scalability enhancements for big IPF machines * Added support for systems with many IRQ resources * Added clustered APIC support for x86_64 * Default readahead to 512KB (instead of 128KB) * fix TPC-C performance problems on x86_64 (caused by vsyscall gettimeofday) * don't waste memory for hashes on huge machines * fix possible cpuset race * avoid memory allocation problem on machines where still enough memory is available * allow memory holes on S/390 * enlarge max number of CPUs on x86-64 and number of IO-APIC * Disable clustered APIC mode on AMD systems * fix perfmon assertion failure in pfm_load_regs Misc * Back ported epoll fixes from 2.6.9 * Integrated numerous other bugfixes from upstream/mainline kernel * Several backports from upstream/mainline kernel: + unmap_mapping_range() from 2.6.6 + generic_file_direct_write() and generic_file_buffered_write() from 2.6.9-rc4 + backport mapping_mapped() + export sync_page_range * Support official variable name INSTALL_MOD_DIR in addition to our MOD_DIR * Fixed hooks to enable CA * Added kernel support for POSIX message queue * fix sys_stime() in 31-bit compatibility mode on S/390 * fix CD/DVD writing for non-root users * fix device special files and permission cache * fix problem with pclose() sometimes hanging * crbce should provide time stamp in msec rather than in jiffies * allow IRQ0 to be used as a legal PCI device IRQ * fix possible EEH or memory corruption when DMA crosses a 64k boundary * fix iSeries Linux on legacy systems not reporting PURR * do not create unnamed directory under /rcfs/taskclass * fix hang caused by loopback TX * limit max number of concurrent khelper processes * allow ACPI PCI hotplug callbacks to set/get_attention_status() * fix IMM highmem oops * avoid deadlocks with non-ram under mlockall * always add credentials to inodes for NFS * fix race condition in unix_dgram_recvmsg() * fix vfree() with interrupts disabled in sg driver * do not fill up process table when many events occur * fix MCA during cross-partitionMPI (ia64) * fix random kernel memory corruption if openfirmware stdin device is an usb controller * Fix CPU time reporting for single processes * fix kernel hang in __getblk_slow() * sunrpc - don't crash on unknown program numbers * fix memory leak in pageattr code (x86 and x86-64 only) * fix RAID1 device failure resulting in kernel crash * don't lose edge triggered IRQ when delivered while IRQ disabled * fix USB HID driver parsing usage IDs * allow keyboard to survive if any key (e.g. F2) is pressed early 2) solution/workaround No workaround is available. Please install the updated packages. 3) special instructions and notes SPECIAL INSTALL INSTRUCTIONS: ============================= The following paragraphs will guide you through the installation process in a step-by-step fashion. The character sequence "****" marks the beginning of a new paragraph. In some cases, the steps outlined in a particular paragraph may or may not be applicable to your situation. Therefore, please make sure to read through all of the steps below before attempting any of these procedures. All of the commands that need to be executed are required to be run as the superuser (root). Each step relies on the steps before it to complete successfully. **** Step 1: Determine the needed kernel type Please use the following command to find the kernel type that is installed on your system: rpm -qf /boot/vmlinuz Following are the possible kernel types (disregard the version and build number following the name separated by the "-" character) k_deflt # default kernel, good for most systems. k_i386 # kernel for older processors and chipsets k_athlon # kernel made specifically for AMD Athlon(tm) family processors k_psmp # kernel for Pentium-I dual processor systems k_smp # kernel for SMP systems (Pentium-II and above) k_smp4G # kernel for SMP systemswhich supports a maximum of 4G of RAM kernel-64k-pagesize kernel-bigsmp kernel-default kernel-smp **** Step 2: Download the package for your system Please download the kernel RPM package for your distribution with the name as indicated by Step 1. The list of all kernel rpm packages is appended below. Note: The kernel-source package does not contain a binary kernel in bootable form. Instead, it contains the sources that the binary kernel rpm packages are created from. It can be used by administrators who have decided to build their own kernel. Since the kernel-source.rpm is an installable (compiled) package that contains sources for the linux kernel, it is not the source RPM for the kernel RPM binary packages. The kernel RPM binary packages for the distributions can be found at the locations below . 9.1/rpm/i586 After downloading the kernel RPM package for your system, you should verify the authenticity of the kernel rpm package using the methods as listed in section 3) of each SUSE Security Announcement. **** Step 3: Installing your kernel rpm package Install the rpm package that you have downloaded in Steps 3 or 4 with the command rpm -Uhv --nodeps --force where is the name of the rpm package that you downloaded. Warning: After performing this step, your system will likely not be able to boot if the following steps have not been fully followed. **** Step 4: configuring and creating the initrd The initrd is a ramdisk that is loaded into the memory of your system together with the kernel boot image by the bootloader. The kernel uses the content of this ramdisk to execute commands that must be run before the kernel can mount its actual root filesystem. It is usually used to initialize SCSI drivers or NIC drivers for diskless operation. The variable INITRD_MODULES in /etc/sysconfig/kernel determines which kernel modules will beloaded in the initrd before the kernel has mounted its actual root filesystem. The variable should contain your SCSI adapter (if any) or filesystem driver modules. With the installation of the new kernel, the initrd has to be re-packed with the update kernel modules. Please run the command mk_initrd as root to create a new init ramdisk (initrd) for your system. On SuSE Linux 8.1 and later, this is done automatically when the RPM is installed. **** Step 5: bootloader If you run a SUSE LINUX 8.x, SLES8, or SUSE LINUX 9.x system, there are two options: Depending on your software configuration, you have either the lilo bootloader or the grub bootloader installed and initialized on your system. The grub bootloader does not require any further actions to be performed after the new kernel images have been moved in place by the rpm Update command. If you have a lilo bootloader installed and initialized, then the lilo program must be run as root. Use the command grep LOADER_TYPE /etc/sysconfig/bootloader to find out which boot loader is configured. If it is lilo, then you must run the lilo command as root. If grub is listed, then your system does not require any bootloader initialization. Warning: An improperly installed bootloader may render your system unbootable. **** Step 6: reboot If all of the steps above have been successfully completed on your system, then the new kernel including the kernel modules and the initrd should be ready to boot. The system needs to be rebooted for the changes to become active. Please make sure that all steps have completed, then reboot using the command shutdown -r now or init 6 Your system should now shut down and reboot with the new kernel. 4) package location and checksums Please download the update package for your distribution and verify its integrity by the methods listed in section 3) of thisannouncement. Then, install the package using the command "rpm -Fhv file.rpm" to apply the update. Our maintenance customers are being notified individually. The packages are being offered to install from the maintenance web. x86 Platform: SUSE Linux 9.1: 9.1/rpm/i586/kernel-source-2.6.5-7.145.i586.rpm 24a03bf57ad5110c075075f8ba3af29e 9.1/rpm/i586/kernel-default-2.6.5-7.145.i586.rpm 316dc46cb58bf67ae65e8d7e1a24431d 9.1/rpm/i586/kernel-smp-2.6.5-7.145.i586.rpm a615d7f15e13919f23f8554cf9095798 9.1/rpm/i586/kernel-bigsmp-2.6.5-7.145.i586.rpm 3f102e26a52af09a6192ab967df2cb2f 9.1/rpm/i586/ltmodem-2.6.2-38.12.i586.rpm 78be81c4e334a7a68839900aec09f5a7 patch rpm(s): 9.1/rpm/i586/ltmodem-2.6.2-38.12.i586.patch.rpm 56d5d38956f49838cbb53dfbf06bc1a9 source rpm(s): 9.1/rpm/src/kernel-source-2.6.5-7.145.src.rpm 49c249c5790c3ed0bfad2a0faed44ec3 9.1/rpm/src/kernel-default-2.6.5-7.145.nosrc.rpm fbcddf5482645d0b426035afebf2a200 9.1/rpm/src/kernel-smp-2.6.5-7.145.nosrc.rpm e0802e2f552ae9a2db7115a1ae809205 9.1/rpm/src/kernel-bigsmp-2.6.5-7.145.nosrc.rpm c43d57860461331eca3eac4596cf5362 9.1/rpm/src/ltmodem-2.6.2-38.12.src.rpm dfcb597da937c3509d2c6aa79007d4eb x86-64 Platform: SUSE Linux 9.1: b1b915070eb4c1ff26f3620733da0400 fbdb27d688dcbb54011d8cd31ed3669c 7220cf7f58ad2f5bb814dd6b6a0cc2f0 source rpm(s): b4f9b455572aba98411f77eaeef02df1 22d2916aee2bb55dde28ef540045d7f3 7a3115a03961fc780d8d5ba5715da590 ______________________________________________________________________________ 5) pending vulnerabilities in SUSE Distributions and Workarounds: Please see the SUSE Security Summary Report. ______________________________________________________________________________ 6) standard appendix: authenticity verification, additional information - Package authenticity verification: SUSE update packages areavailable on many mirror ftp servers all over the world. While this service is being considered valuable and important to the free and open source software community, many users wish to be sure about the origin of the package and its content before installing the package. There are two verification methods that can be used independently from each other to prove the authenticity of a downloaded file or rpm package: 1) md5sums as provided in the (cryptographically signed) announcement. 2) using the internal gpg signatures of the rpm package. 1) execute the command md5sum after you downloaded the file from a SUSE ftp server or its mirrors. Then, compare the resulting md5sum with the one that is listed in the announcement. Since the announcement containing the checksums is cryptographically signed (usually using the key This email address is being protected from spambots. You need JavaScript enabled to view it.), the checksums show proof of the authenticity of the package. We disrecommend to subscribe to security lists which cause the email message containing the announcement to be modified so that the signature does not match after transport through the mailing list software. Downsides: You must be able to verify the authenticity of the announcement in the first place. If RPM packages are being rebuilt and a new version of a package is published on the ftp server, all md5 sums for the files are useless. 2) rpm package signatures provide an easy way to verify the authenticity of an rpm package. Use the command rpm -v --checksig to verify the signature of the package, where is the filename of the rpm package that you have downloaded. Of course, package authenticity verification can only target an un-installed rpm package file. Prerequisites: a) gpg is installed b) The package is signed using a certain key. The public part of this key must be installed by the gpg programin the directory ~/.gnupg/ under the user's home directory who performs the signature verification (usually root). You can import the key that is used by SUSE in rpm packages for SUSE Linux by saving this announcement to a file ("announcement.txt") and running the command (do "su -" to be root): gpg --batch; gpg < announcement.txt | gpg --import SUSE Linux distributions version 7.1 and thereafter install the key "This email address is being protected from spambots. You need JavaScript enabled to view it." upon installation or upgrade, provided that the package gpg is installed. The file containing the public key is placed at the top-level directory of the first CD (pubring.gpg) and at . - SUSE runs two security mailing lists to which any interested party may subscribe: This email address is being protected from spambots. You need JavaScript enabled to view it. - general/linux/SUSE security discussion. All SUSE security announcements are sent to this list. To subscribe, send an email to . This email address is being protected from spambots. You need JavaScript enabled to view it. - SUSE's announce-only mailing list. Only SUSE's security announcements are sent to this list. To subscribe, send an email to . For general information or the frequently asked questions (faq) send mail to: or respectively. ==================================================================== SUSE's security contact is or . The public key is listed below. ==================================================================== . A vital kernel upgrade for SUSE Linux 9.1 addressing system vulnerabilities and bugs. Crucial for maintaining system security and operational stability.. SUSE Kernel Update,Linux Enterprise Security,Bug Resolutions,Stability Enhancements. . Severity: Critical. LinuxSecurity.com Team

Feb 04, 2005 •Critical SuSE