# Security update for the Linux Kernel

Announcement ID: SUSE-SU-2024:2895-1  
Rating: important  
References:

  * bsc#1191958
  * bsc#1197439
  * bsc#1222824
  * bsc#1223384
  * bsc#1225431
  * bsc#1225487
  * bsc#1225611
  * bsc#1225866
  * bsc#1226550
  * bsc#1226575
  * bsc#1226670
  * bsc#1226848
  * bsc#1227154
  * bsc#1228743

  
Cross-References:

  * CVE-2016-20022
  * CVE-2021-43389
  * CVE-2021-4439
  * CVE-2021-47219
  * CVE-2021-47520
  * CVE-2021-47580
  * CVE-2021-47600
  * CVE-2023-52752
  * CVE-2023-52881
  * CVE-2024-26923
  * CVE-2024-36964
  * CVE-2024-38599
  * CVE-2024-42145

  
CVSS scores:

  * CVE-2016-20022 ( SUSE ):  4.3 CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2021-43389 ( SUSE ):  4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2021-43389 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2021-4439 ( SUSE ):  4.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
  * CVE-2021-47219 ( SUSE ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  * CVE-2021-47520 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2021-47520 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2021-47580 ( SUSE ):  6.3 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L
  * CVE-2021-47600 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-52752 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-52752 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-52881 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L
  * CVE-2024-26923 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2024-36964 ( SUSE ):  7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
  * CVE-2024-38599 ( SUSE ):  7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
  * CVE-2024-42145 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2024-42145 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

  
Affected Products:

  * SUSE Linux Enterprise Server 11 SP4
  * SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE 11-SP4

  
  
An update that solves 13 vulnerabilities and has one security fix can now be
installed.

## Description:

The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various security
bugfixes.

The following security bugs were fixed:

  * CVE-2024-42145: IB/core: Implement a limit on UMAD receive List
    (bsc#1228743)
  * CVE-2021-47580: scsi: scsi_debug: Fix type in min_t to avoid stack OOB
    (bsc#1226550).
  * CVE-2021-47219: scsi: scsi_debug: Fix out-of-bound read in
    resp_report_tgtpgs() (bsc#1222824).
  * CVE-2021-47520: can: pch_can: pch_can_rx_normal: fix use after free
    (bsc#1225431).
  * CVE-2021-47600: dm btree remove: fix use after free in rebalance_children()
    (bsc#1226575).
  * CVE-2023-52881: tcp: do not accept ACK of bytes we never sent (bsc#1225611).
  * CVE-2024-38599: jffs2: prevent xattr node from overflowing the eraseblock
    (bsc#1226848).
  * CVE-2023-52752: smb: client: fix use-after-free bug in
    cifs_debug_data_proc_show() (bsc#1225487).
  * CVE-2024-36964: fs/9p: only translate RWX permissions for plain 9P2000
    (bsc#1225866).
  * CVE-2024-26923: Fixed false-positive lockdep splat for spin_lock() in
    __unix_gc() (bsc#1223384).

The following non-security bugs were fixed:

  * af_unix: Do not use atomic ops for unix_sk(sk)->inflight (bsc#1223384).
  * af_unix: Replace BUG_ON() with WARN_ON_ONCE() (bsc#1223384).
  * af_unix: annote lockless accesses to unix_tot_inflight & gc_in_progress
    (bsc#1223384).
  * kvm: prevent kvm_clock time-warps (bsc#1197439).
  * net: unix: properly re-increment inflight counter of GC discarded candidates
    (bsc#1223384).

## 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 Linux Enterprise Server 11 SP4 LTSS EXTREME CORE 11-SP4  
    zypper in -t patch SUSE-SLE-SERVER-11-SP4-LTSS-EXTREME-CORE-2024-2895=1

  * SUSE Linux Enterprise Server 11 SP4  
    zypper in -t patch SUSE-SLE-SERVER-11-SP4-LTSS-EXTREME-CORE-2024-2895=1

## Package List:

  * SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE 11-SP4 (nosrc x86_64)
    * kernel-ec2-3.0.101-108.159.1
    * kernel-trace-3.0.101-108.159.1
    * kernel-default-3.0.101-108.159.1
    * kernel-xen-3.0.101-108.159.1
  * SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE 11-SP4 (x86_64)
    * kernel-ec2-devel-3.0.101-108.159.1
    * kernel-source-3.0.101-108.159.1
    * kernel-xen-devel-3.0.101-108.159.1
    * kernel-default-devel-3.0.101-108.159.1
    * kernel-trace-devel-3.0.101-108.159.1
    * kernel-trace-base-3.0.101-108.159.1
    * kernel-xen-base-3.0.101-108.159.1
    * kernel-syms-3.0.101-108.159.1
    * kernel-default-base-3.0.101-108.159.1
    * kernel-ec2-base-3.0.101-108.159.1
  * SUSE Linux Enterprise Server 11 SP4 (nosrc x86_64)
    * kernel-ec2-3.0.101-108.159.1
    * kernel-trace-3.0.101-108.159.1
    * kernel-default-3.0.101-108.159.1
    * kernel-xen-3.0.101-108.159.1
  * SUSE Linux Enterprise Server 11 SP4 (x86_64)
    * kernel-ec2-devel-3.0.101-108.159.1
    * kernel-source-3.0.101-108.159.1
    * kernel-xen-devel-3.0.101-108.159.1
    * kernel-default-devel-3.0.101-108.159.1
    * kernel-trace-devel-3.0.101-108.159.1
    * kernel-trace-base-3.0.101-108.159.1
    * kernel-xen-base-3.0.101-108.159.1
    * kernel-syms-3.0.101-108.159.1
    * kernel-default-base-3.0.101-108.159.1
    * kernel-ec2-base-3.0.101-108.159.1

## References:

  * https://www.suse.com/security/cve/CVE-2016-20022.html
  * https://www.suse.com/security/cve/CVE-2021-43389.html
  * https://www.suse.com/security/cve/CVE-2021-4439.html
  * https://www.suse.com/security/cve/CVE-2021-47219.html
  * https://www.suse.com/security/cve/CVE-2021-47520.html
  * https://www.suse.com/security/cve/CVE-2021-47580.html
  * https://www.suse.com/security/cve/CVE-2021-47600.html
  * https://www.suse.com/security/cve/CVE-2023-52752.html
  * https://www.suse.com/security/cve/CVE-2023-52881.html
  * https://www.suse.com/security/cve/CVE-2024-26923.html
  * https://www.suse.com/security/cve/CVE-2024-36964.html
  * https://www.suse.com/security/cve/CVE-2024-38599.html
  * https://www.suse.com/security/cve/CVE-2024-42145.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1191958
  * https://bugzilla.suse.com/show_bug.cgi?id=1197439
  * https://bugzilla.suse.com/show_bug.cgi?id=1222824
  * https://bugzilla.suse.com/show_bug.cgi?id=1223384
  * https://bugzilla.suse.com/show_bug.cgi?id=1225431
  * https://bugzilla.suse.com/show_bug.cgi?id=1225487
  * https://bugzilla.suse.com/show_bug.cgi?id=1225611
  * https://bugzilla.suse.com/show_bug.cgi?id=1225866
  * https://bugzilla.suse.com/show_bug.cgi?id=1226550
  * https://bugzilla.suse.com/show_bug.cgi?id=1226575
  * https://bugzilla.suse.com/show_bug.cgi?id=1226670
  * https://bugzilla.suse.com/show_bug.cgi?id=1226848
  * https://bugzilla.suse.com/show_bug.cgi?id=1227154
  * https://bugzilla.suse.com/show_bug.cgi?id=1228743