Security update for the Linux Kernel

Announcement ID:	SUSE-SU-2022:2808-1
Rating:	important
References:	bsc#1195775 bsc#1195926 bsc#1198484 bsc#1198829 bsc#1200442 bsc#1201050 bsc#1201635 bsc#1201636 bsc#1201926 bsc#1201930
Cross-References:	CVE-2021-26341 CVE-2021-33655 CVE-2021-33656 CVE-2022-1462
CVSS scores:	CVE-2021-26341 ( SUSE ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2021-26341 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2021-33655 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2021-33655 ( NVD ): 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2021-33656 ( SUSE ): 6.3 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H CVE-2021-33656 ( NVD ): 6.8 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2022-1462 ( SUSE ): 6.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H CVE-2022-1462 ( NVD ): 6.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H
Affected Products:	SUSE Linux Enterprise High Availability Extension 12 SP4 SUSE Linux Enterprise High Performance Computing 12 SP4 SUSE Linux Enterprise Live Patching 12-SP4 SUSE Linux Enterprise Server 12 SP4 SUSE Linux Enterprise Server 12 SP4 ESPOS 12-SP4 SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4 SUSE Linux Enterprise Server for SAP Applications 12 SP4 SUSE OpenStack Cloud 9 SUSE OpenStack Cloud Crowbar 9

An update that solves four vulnerabilities and has six security fixes can now be installed.

Description:

The SUSE Linux Enterprise 12 SP4 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-26341: Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result in data leakage (bsc#1201050).
• 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).

The following non-security bugs were fixed:

• Add missing recommends of kernel-install-tools to kernel-source-vanilla (bsc#1200442)
• 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: fix potential use-after-free in cifs_echo_request() (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).
• kernel-binary.spec: Support radio selection for debuginfo. To disable debuginfo on 5.18 kernel a radio selection needs to be switched to a different selection. This requires disabling the currently active option and selecting NONE as debuginfo type.
• kvm: emulate: Fix SETcc emulation function offsets with SLS (bsc#1201930).
• kvm: emulate: do not adjust size of fastop and setcc subroutines (bsc#1201930).
• pahole 1.22 required for full BTF features. also recommend pahole for kernel-source to make the kernel buildable with standard config
• 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).

Special Instructions and Notes:

• Please reboot the system after installing this update.

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

• SUSE OpenStack Cloud 9
  zypper in -t patch SUSE-OpenStack-Cloud-9-2022-2808=1
• SUSE OpenStack Cloud Crowbar 9
  zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-9-2022-2808=1
• SUSE Linux Enterprise Server for SAP Applications 12 SP4
  zypper in -t patch SUSE-SLE-HA-12-SP4-2022-2808=1 SUSE-SLE-SAP-12-SP4-2022-2808=1
• SUSE Linux Enterprise High Availability Extension 12 SP4
  zypper in -t patch SUSE-SLE-HA-12-SP4-2022-2808=1
• SUSE Linux Enterprise Live Patching 12-SP4
  zypper in -t patch SUSE-SLE-Live-Patching-12-SP4-2022-2808=1
• SUSE Linux Enterprise Server 12 SP4 ESPOS 12-SP4
  zypper in -t patch SUSE-SLE-SERVER-12-SP4-ESPOS-2022-2808=1
• SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4
  zypper in -t patch SUSE-SLE-SERVER-12-SP4-LTSS-2022-2808=1

Package List:

• SUSE OpenStack Cloud 9 (nosrc x86_64)
  • kernel-default-4.12.14-95.105.1
• SUSE OpenStack Cloud 9 (x86_64)
  • kernel-default-devel-4.12.14-95.105.1
  • kernel-default-base-debuginfo-4.12.14-95.105.1
  • kernel-default-debuginfo-4.12.14-95.105.1
  • kernel-default-devel-debuginfo-4.12.14-95.105.1
  • kernel-default-debugsource-4.12.14-95.105.1
  • kernel-syms-4.12.14-95.105.1
  • kernel-default-base-4.12.14-95.105.1
• SUSE OpenStack Cloud 9 (noarch)
  • kernel-devel-4.12.14-95.105.1
  • kernel-source-4.12.14-95.105.1
  • kernel-macros-4.12.14-95.105.1
• SUSE OpenStack Cloud Crowbar 9 (nosrc x86_64)
  • kernel-default-4.12.14-95.105.1
• SUSE OpenStack Cloud Crowbar 9 (x86_64)
  • kernel-default-devel-4.12.14-95.105.1
  • kernel-default-base-debuginfo-4.12.14-95.105.1
  • kernel-default-debuginfo-4.12.14-95.105.1
  • kernel-default-devel-debuginfo-4.12.14-95.105.1
  • kernel-default-debugsource-4.12.14-95.105.1
  • kernel-syms-4.12.14-95.105.1
  • kernel-default-base-4.12.14-95.105.1
• SUSE OpenStack Cloud Crowbar 9 (noarch)
  • kernel-devel-4.12.14-95.105.1
  • kernel-source-4.12.14-95.105.1
  • kernel-macros-4.12.14-95.105.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP4 (ppc64le x86_64)
  • dlm-kmp-default-debuginfo-4.12.14-95.105.1
  • dlm-kmp-default-4.12.14-95.105.1
  • kernel-default-devel-4.12.14-95.105.1
  • cluster-md-kmp-default-4.12.14-95.105.1
  • kernel-default-base-debuginfo-4.12.14-95.105.1
  • ocfs2-kmp-default-debuginfo-4.12.14-95.105.1
  • kernel-default-debuginfo-4.12.14-95.105.1
  • kernel-default-debugsource-4.12.14-95.105.1
  • gfs2-kmp-default-debuginfo-4.12.14-95.105.1
  • gfs2-kmp-default-4.12.14-95.105.1
  • kernel-syms-4.12.14-95.105.1
  • cluster-md-kmp-default-debuginfo-4.12.14-95.105.1
  • ocfs2-kmp-default-4.12.14-95.105.1
  • kernel-default-base-4.12.14-95.105.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP4 (nosrc ppc64le x86_64)
  • kernel-default-4.12.14-95.105.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP4 (noarch)
  • kernel-devel-4.12.14-95.105.1
  • kernel-source-4.12.14-95.105.1
  • kernel-macros-4.12.14-95.105.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP4 (x86_64)
  • kernel-default-devel-debuginfo-4.12.14-95.105.1
• SUSE Linux Enterprise High Availability Extension 12 SP4 (ppc64le s390x x86_64)
  • dlm-kmp-default-debuginfo-4.12.14-95.105.1
  • dlm-kmp-default-4.12.14-95.105.1
  • cluster-md-kmp-default-4.12.14-95.105.1
  • ocfs2-kmp-default-debuginfo-4.12.14-95.105.1
  • kernel-default-debuginfo-4.12.14-95.105.1
  • kernel-default-debugsource-4.12.14-95.105.1
  • gfs2-kmp-default-debuginfo-4.12.14-95.105.1
  • gfs2-kmp-default-4.12.14-95.105.1
  • cluster-md-kmp-default-debuginfo-4.12.14-95.105.1
  • ocfs2-kmp-default-4.12.14-95.105.1
• SUSE Linux Enterprise High Availability Extension 12 SP4 (nosrc)
  • kernel-default-4.12.14-95.105.1
• SUSE Linux Enterprise Live Patching 12-SP4 (ppc64le s390x x86_64)
  • kgraft-patch-4_12_14-95_105-default-1-6.3.1
  • kernel-default-kgraft-4.12.14-95.105.1
  • kernel-default-kgraft-devel-4.12.14-95.105.1
• SUSE Linux Enterprise Live Patching 12-SP4 (nosrc)
  • kernel-default-4.12.14-95.105.1
• SUSE Linux Enterprise Server 12 SP4 ESPOS 12-SP4 (aarch64 nosrc x86_64)
  • kernel-default-4.12.14-95.105.1
• SUSE Linux Enterprise Server 12 SP4 ESPOS 12-SP4 (aarch64 x86_64)
  • kernel-default-devel-4.12.14-95.105.1
  • kernel-default-base-debuginfo-4.12.14-95.105.1
  • kernel-default-debuginfo-4.12.14-95.105.1
  • kernel-default-debugsource-4.12.14-95.105.1
  • kernel-syms-4.12.14-95.105.1
  • kernel-default-base-4.12.14-95.105.1
• SUSE Linux Enterprise Server 12 SP4 ESPOS 12-SP4 (noarch)
  • kernel-devel-4.12.14-95.105.1
  • kernel-source-4.12.14-95.105.1
  • kernel-macros-4.12.14-95.105.1
• SUSE Linux Enterprise Server 12 SP4 ESPOS 12-SP4 (x86_64)
  • kernel-default-devel-debuginfo-4.12.14-95.105.1
• SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4 (aarch64 ppc64le s390x x86_64 nosrc)
  • kernel-default-4.12.14-95.105.1
• SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4 (aarch64 ppc64le s390x x86_64)
  • kernel-default-devel-4.12.14-95.105.1
  • kernel-default-base-debuginfo-4.12.14-95.105.1
  • kernel-default-debuginfo-4.12.14-95.105.1
  • kernel-default-debugsource-4.12.14-95.105.1
  • kernel-syms-4.12.14-95.105.1
  • kernel-default-base-4.12.14-95.105.1
• SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4 (noarch)
  • kernel-devel-4.12.14-95.105.1
  • kernel-source-4.12.14-95.105.1
  • kernel-macros-4.12.14-95.105.1
• SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4 (s390x)
  • kernel-default-man-4.12.14-95.105.1
• SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4 (x86_64)
  • kernel-default-devel-debuginfo-4.12.14-95.105.1

References:

• https://www.suse.com/security/cve/CVE-2021-26341.html
• https://www.suse.com/security/cve/CVE-2021-33655.html
• https://www.suse.com/security/cve/CVE-2021-33656.html
• https://www.suse.com/security/cve/CVE-2022-1462.html
• https://bugzilla.suse.com/show_bug.cgi?id=1195775
• https://bugzilla.suse.com/show_bug.cgi?id=1195926
• https://bugzilla.suse.com/show_bug.cgi?id=1198484
• https://bugzilla.suse.com/show_bug.cgi?id=1198829
• https://bugzilla.suse.com/show_bug.cgi?id=1200442
• https://bugzilla.suse.com/show_bug.cgi?id=1201050
• https://bugzilla.suse.com/show_bug.cgi?id=1201635
• https://bugzilla.suse.com/show_bug.cgi?id=1201636
• https://bugzilla.suse.com/show_bug.cgi?id=1201926
• https://bugzilla.suse.com/show_bug.cgi?id=1201930