Security update for the Linux Kernel

Announcement ID: SUSE-SU-2022:0764-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2022-0001 ( SUSE ): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
  • CVE-2022-0001 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
  • CVE-2022-0002 ( SUSE ): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
  • CVE-2022-0002 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
  • CVE-2022-0847 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2022-0847 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:
  • SUSE Linux Enterprise Micro 5.0
  • SUSE Linux Enterprise Real Time 15 SP2
  • SUSE Real Time Module 15-SP2

An update that solves three vulnerabilities and has two security fixes can now be installed.

Description:

The SUSE Linux Enterprise 15 SP2 RT kernel was updated to receive various security and bugfixes.

Transient execution side-channel attacks attacking the Branch History Buffer (BHB), named "Branch Target Injection" and "Intra-Mode Branch History Injection" are now mitigated.

The following security bugs were fixed:

  • CVE-2022-0001: Fixed Branch History Injection vulnerability (bsc#1191580).
  • CVE-2022-0002: Fixed Intra-Mode Branch Target Injection vulnerability (bsc#1191580).
  • CVE-2022-0847: Fixed a vulnerability were a local attackers could overwrite data in arbitrary (read-only) files (bsc#1196584).

The following non-security bugs were fixed:

  • btrfs: check for missing device in btrfs_trim_fs (bsc#1195701).
  • lib/iov_iter: initialize "flags" in new pipe_buffer (bsc#1196584).
  • nfsd: allow delegation state ids to be revoked and then freed (bsc#1192483).
  • nfsd: allow open state ids to be revoked and then freed (bsc#1192483).
  • nfsd: do not admin-revoke NSv4.0 state ids (bsc#1192483).
  • nfsd: prepare for supporting admin-revocation of state (bsc#1192483).
  • powerpc/pseries/ddw: Revert "Extend upper limit for huge DMA window for persistent memory" (bsc#1195995 ltc#196394).

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 Real Time Module 15-SP2
    zypper in -t patch SUSE-SLE-Module-RT-15-SP2-2022-764=1
  • SUSE Linux Enterprise Micro 5.0
    zypper in -t patch SUSE-SUSE-MicroOS-5.0-2022-764=1

Package List:

  • SUSE Real Time Module 15-SP2 (x86_64)
    • dlm-kmp-rt-debuginfo-5.3.18-76.1
    • cluster-md-kmp-rt-5.3.18-76.1
    • kernel-rt-debuginfo-5.3.18-76.1
    • kernel-rt_debug-devel-debuginfo-5.3.18-76.1
    • kernel-syms-rt-5.3.18-76.1
    • dlm-kmp-rt-5.3.18-76.1
    • ocfs2-kmp-rt-debuginfo-5.3.18-76.1
    • kernel-rt_debug-debugsource-5.3.18-76.1
    • kernel-rt-devel-debuginfo-5.3.18-76.1
    • kernel-rt_debug-devel-5.3.18-76.1
    • gfs2-kmp-rt-debuginfo-5.3.18-76.1
    • gfs2-kmp-rt-5.3.18-76.1
    • ocfs2-kmp-rt-5.3.18-76.1
    • kernel-rt-debugsource-5.3.18-76.1
    • kernel-rt_debug-debuginfo-5.3.18-76.1
    • cluster-md-kmp-rt-debuginfo-5.3.18-76.1
    • kernel-rt-devel-5.3.18-76.1
  • SUSE Real Time Module 15-SP2 (noarch)
    • kernel-source-rt-5.3.18-76.1
    • kernel-devel-rt-5.3.18-76.1
  • SUSE Real Time Module 15-SP2 (nosrc x86_64)
    • kernel-rt_debug-5.3.18-76.1
    • kernel-rt-5.3.18-76.1
  • SUSE Linux Enterprise Micro 5.0 (x86_64)
    • kernel-rt-debuginfo-5.3.18-76.1
    • kernel-rt-debugsource-5.3.18-76.1
  • SUSE Linux Enterprise Micro 5.0 (nosrc x86_64)
    • kernel-rt-5.3.18-76.1

References: