Security update for the Linux Kernel (important)

An update that solves 7 vulnerabilities and has 7 fixes is
now available.

Description:

The SUSE Linux Enterprise 15 SP1 kernel was updated to receive various
security and bugfixes.

The following security bugs were fixed:

• CVE-2020-36557: Fixed race condition between the VT_DISALLOCATE ioctl
  and closing/opening of ttys that could lead to a use-after-free
  (bnc#1201429).
• CVE-2020-36558: Fixed race condition involving VT_RESIZEX that could
  lead to a NULL pointer dereference and general protection fault
  (bnc#1200910).
• CVE-2021-33655: Fixed out of bounds write with ioctl FBIOPUT_VSCREENINFO
  (bnc#1201635).
• CVE-2021-33656: Fixed out of bounds write with ioctl PIO_FONT
  (bnc#1201636).
• CVE-2022-1462: Fixed an out-of-bounds read flaw in the TeleTYpe
  subsystem (bnc#1198829).
• CVE-2022-20166: Fixed possible out of bounds write due to sprintf
  unsafety that could cause local escalation of privilege (bnc#1200598).
• CVE-2022-36946: Fixed incorrect packet truncation in nfqnl_mangle() that
  could lead to remote DoS (bnc#1201940).

The following non-security bugs were fixed:

• cifs: On cifs_reconnect, resolve the hostname again (bsc#1201926).
• cifs: Simplify reconnect code when dfs upcall is enabled (bsc#1201926).
• cifs: To match file servers, make sure the server hostname matches
  (bsc#1201926).
• cifs: fix memory leak of smb3_fs_context_dup::server_hostname
  (bsc#1201926).
• cifs: set a minimum of 120s for next dns resolution (bsc#1201926).
• cifs: use the expiry output of dns_query to schedule next resolution
  (bsc#1201926).
• kvm: emulate: Fix SETcc emulation function offsets with SLS
  (bsc#1201930).
• kvm: emulate: do not adjust size of fastop and setcc subroutines
  (bsc#1201930).
• rpm/*.spec.in: remove backtick usage
• rpm/constraints.in: skip SLOW_DISK workers for kernel-source
• rpm/kernel-obs-build.spec.in: Also depend on dracut-systemd (bsc#1195775)
• rpm/kernel-obs-build.spec.in: add systemd-initrd and terminfo dracut
  module (bsc#1195775)
• rpm/kernel-obs-build.spec.in: use default dracut modules (bsc#1195926,
  bsc#1198484)
• x86/entry: Remove skip_r11rcx (bsc#1201644).

Special Instructions and Notes:

Please reboot the system after installing this update.

Patch Instructions:

To install this SUSE Security Update use the SUSE recommended installation methods
like YaST online_update or “zypper patch”.

Alternatively you can run the command listed for your product:

• openSUSE Leap 15.4:

  zypper in -t patch openSUSE-SLE-15.4-2022-2827=1

• openSUSE Leap 15.3:

  zypper in -t patch openSUSE-SLE-15.3-2022-2827=1

• SUSE Linux Enterprise Server for SAP 15-SP1:

  zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP1-2022-2827=1

• SUSE Linux Enterprise Server 15-SP1-LTSS:

  zypper in -t patch SUSE-SLE-Product-SLES-15-SP1-LTSS-2022-2827=1

• SUSE Linux Enterprise Server 15-SP1-BCL:

  zypper in -t patch SUSE-SLE-Product-SLES-15-SP1-BCL-2022-2827=1

• SUSE Linux Enterprise Module for Live Patching 15-SP1:

  zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP1-2022-2827=1

  Please note that this is the initial kernel livepatch without fixes
  itself, this livepatch package is later updated by seperate standalone
  livepatch updates.

• SUSE Linux Enterprise High Performance Computing 15-SP1-LTSS:

  zypper in -t patch SUSE-SLE-Product-HPC-15-SP1-LTSS-2022-2827=1

• SUSE Linux Enterprise High Performance Computing 15-SP1-ESPOS:

  zypper in -t patch SUSE-SLE-Product-HPC-15-SP1-ESPOS-2022-2827=1

• SUSE Linux Enterprise High Availability 15-SP1:

  zypper in -t patch SUSE-SLE-Product-HA-15-SP1-2022-2827=1

• SUSE Enterprise Storage 6:

  zypper in -t patch SUSE-Storage-6-2022-2827=1

• SUSE CaaS Platform 4.0:

  To install this update, use the SUSE CaaS Platform ‘skuba’ tool. It
  will inform you if it detects new updates and let you then trigger
  updating of the complete cluster in a controlled way.