SUSE-SU-2026:2866-1: important: Security update for the Linux Kernel (Live Patch 22 for SUSE Linux Enterprise 15 SP6)

OPENSUSE-SECURITY-UPDATES <[email protected]>
Newsgroups gmane.linux.suse.security.announce
Message-ID <178394592511.1684.17190891529730441572@57e59d802799> 
# Security update for the Linux Kernel (Live Patch 22 for SUSE Linux Enterprise
15 SP6)

Announcement ID: SUSE-SU-2026:2866-1  
Release Date: 2026-07-12T23:25:50Z  
Rating: important  
References:

  * bsc#1260524
  * bsc#1262759
  * bsc#1263094
  * bsc#1263118
  * bsc#1263177
  * bsc#1263670
  * bsc#1264094
  * bsc#1264252
  * bsc#1264253
  * bsc#1264567
  * bsc#1264849
  * bsc#1265117
  * bsc#1265127
  * bsc#1265197
  * bsc#1265945
  * bsc#1266015
  * bsc#1266265
  * bsc#1267206
  * bsc#1267698
  * bsc#1267723
  * bsc#1267893
  * bsc#1268662
  * bsc#1269023
  * bsc#1269495

  
Cross-References:

  * CVE-2026-23393
  * CVE-2026-31505
  * CVE-2026-31533
  * CVE-2026-31570
  * CVE-2026-31586
  * CVE-2026-31685
  * CVE-2026-31758
  * CVE-2026-43025
  * CVE-2026-43027
  * CVE-2026-43037
  * CVE-2026-43120
  * CVE-2026-43190
  * CVE-2026-43366
  * CVE-2026-43437
  * CVE-2026-43494
  * CVE-2026-43501
  * CVE-2026-45970
  * CVE-2026-46120
  * CVE-2026-46173
  * CVE-2026-46227
  * CVE-2026-46243
  * CVE-2026-52909
  * CVE-2026-52943
  * CVE-2026-53362

  
CVSS scores:

  * CVE-2026-23393 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-23393 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-23393 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-31505 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-31505 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-31505 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-31533 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-31533 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-31533 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-31570 ( SUSE ):  6.9
    CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:H/SI:N/SA:N
  * CVE-2026-31570 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-31570 ( NVD ):  8.8 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-31586 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-31586 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-31586 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-31685 ( SUSE ):  8.3
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-31685 ( SUSE ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
  * CVE-2026-31685 ( NVD ):  9.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
  * CVE-2026-31758 ( SUSE ):  8.5
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-31758 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-31758 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-43025 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-43025 ( NVD ):  7.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
  * CVE-2026-43027 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-43027 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-43037 ( SUSE ):  7.7
    CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-43037 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-43037 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-43037 ( NVD ):  8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-43120 ( SUSE ):  6.9
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-43120 ( SUSE ):  7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
  * CVE-2026-43120 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-43120 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-43190 ( SUSE ):  8.8
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-43190 ( SUSE ):  8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
  * CVE-2026-43190 ( NVD ):  8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
  * CVE-2026-43366 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-43366 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-43366 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-43437 ( SUSE ):  8.5
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-43437 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-43437 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-43494 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-43494 ( SUSE ):  8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-43494 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-43494 ( NVD ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-43501 ( SUSE ):  7.1
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-43501 ( SUSE ):  7.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
  * CVE-2026-43501 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-43501 ( NVD ):  7.5 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-45970 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-45970 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-45970 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-46120 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
  * CVE-2026-46120 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-46173 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-46173 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-46173 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-46227 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-46227 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-46227 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-46227 ( NVD ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-46243 ( SUSE ):  8.5
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-46243 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-46243 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-46243 ( NVD ):  7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-46243 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-52909 ( SUSE ):  7.1
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-52909 ( SUSE ):  7.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
  * CVE-2026-52909 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-52943 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-52943 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-52943 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-52943 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-53362 ( SUSE ):  9.0
    CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
  * CVE-2026-53362 ( SUSE ):  8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

  
Affected Products:

  * openSUSE Leap 15.6
  * SUSE Linux Enterprise Live Patching 15-SP6
  * SUSE Linux Enterprise Real Time 15 SP6
  * SUSE Linux Enterprise Server 15 SP6
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6

  
  
An update that solves 24 vulnerabilities can now be installed.

## Description:

This update for the SUSE Linux Enterprise Kernel 6.4.0-150600.23.95 fixes
various security issues

The following security issues were fixed:

  * CVE-2026-23393: bridge: cfm: Fix race condition in peer_mep deletion
    (bsc#1260524).
  * CVE-2026-31505: iavf: fix out-of-bounds writes in iavf_get_ethtool_stats()
    (bsc#1263094).
  * CVE-2026-31533: net/tls: fix use-after-free in -EBUSY error path of
    tls_do_encryption (bsc#1262759).
  * CVE-2026-31570: can: gw: fix OOB heap access in cgw_csum_crc8_rel()
    (bsc#1263118).
  * CVE-2026-31586: mm: blk-cgroup: fix use-after-free in cgwb_release_workfn()
    (bsc#1263177).
  * CVE-2026-31685: netfilter: ip6t_eui64: reject invalid MAC header for all
    packets (bsc#1263670).
  * CVE-2026-31758: usb: usbtmc: Flush anchored URBs in usbtmc_release
    (bsc#1264094).
  * CVE-2026-43025: netfilter: ctnetlink: ignore explicit helper on new
    expectations (bsc#1264253).
  * CVE-2026-43027: netfilter: nf_conntrack_helper: pass helper to expect
    cleanup (bsc#1264252).
  * CVE-2026-43037: ip6_tunnel: clear skb2->cb[] in ip4ip6_err() (bsc#1265197).
  * CVE-2026-43120: RDMA/irdma: Fix double free related to rereg_user_mr
    (bsc#1264567).
  * CVE-2026-43190: netfilter: xt_tcpmss: check remaining length before reading
    optlen (bsc#1264849).
  * CVE-2026-43366: io_uring/kbuf: check if target buffer list is still legacy
    on recycle (bsc#1265117).
  * CVE-2026-43437: ALSA: pcm: fix use-after-free on linked stream runtime in
    snd_pcm_drain() (bsc#1265127).
  * CVE-2026-43494: RDS zerocopy attack aka PinTheft (bsc#1265945).
  * CVE-2026-43501: ipv6: rpl: reserve mac_len headroom when recompressed SRH
    grows (bsc#1266015).
  * CVE-2026-45970: bonding: alb: fix UAF in rlb_arp_recv during bond up/down
    (bsc#1267206).
  * CVE-2026-46120: ip6_gre: Use cached t->net in ip6erspan_changelink()
    (bsc#1267893).
  * CVE-2026-46173: exit: prevent preemption of oopsing TASK_DEAD task
    (bsc#1267723).
  * CVE-2026-46227: sctp: revalidate list cursor after sctp_sendmsg_to_asoc() in
    SCTP_SENDALL (bsc#1267698).
  * CVE-2026-46243: smb: client: reject userspace cifs.spnego descriptions
    (CIFSwitch) (bsc#1266265).
  * CVE-2026-52909: ip6_vti: set netns_immutable on the fallback device
    (bsc#1268662).
  * CVE-2026-52943: net: skbuff: fix missing zerocopy reference in pskb_carve
    helpers (bsc#1269023).
  * CVE-2026-53362: ipv6: account for fraggap on the paged allocation path
    (bsc#1269495).

## 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 Live Patching 15-SP6  
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP6-2026-2866=1

  * openSUSE Leap 15.6  
    zypper in -t patch SUSE-2026-2866=1

## Package List:

  * openSUSE Leap 15.6 (ppc64le s390x x86_64)
    * kernel-livepatch-6_4_0-150600_23_95-default-debuginfo-6-150600.2.2
    * kernel-livepatch-SLE15-SP6_Update_22-debugsource-6-150600.2.2
    * kernel-livepatch-6_4_0-150600_23_95-default-6-150600.2.2
  * SUSE Linux Enterprise Live Patching 15-SP6 (ppc64le s390x x86_64)
    * kernel-livepatch-6_4_0-150600_23_95-default-debuginfo-6-150600.2.2
    * kernel-livepatch-SLE15-SP6_Update_22-debugsource-6-150600.2.2
    * kernel-livepatch-6_4_0-150600_23_95-default-6-150600.2.2

## References:

  * https://www.suse.com/security/cve/CVE-2026-23393.html
  * https://www.suse.com/security/cve/CVE-2026-31505.html
  * https://www.suse.com/security/cve/CVE-2026-31533.html
  * https://www.suse.com/security/cve/CVE-2026-31570.html
  * https://www.suse.com/security/cve/CVE-2026-31586.html
  * https://www.suse.com/security/cve/CVE-2026-31685.html
  * https://www.suse.com/security/cve/CVE-2026-31758.html
  * https://www.suse.com/security/cve/CVE-2026-43025.html
  * https://www.suse.com/security/cve/CVE-2026-43027.html
  * https://www.suse.com/security/cve/CVE-2026-43037.html
  * https://www.suse.com/security/cve/CVE-2026-43120.html
  * https://www.suse.com/security/cve/CVE-2026-43190.html
  * https://www.suse.com/security/cve/CVE-2026-43366.html
  * https://www.suse.com/security/cve/CVE-2026-43437.html
  * https://www.suse.com/security/cve/CVE-2026-43494.html
  * https://www.suse.com/security/cve/CVE-2026-43501.html
  * https://www.suse.com/security/cve/CVE-2026-45970.html
  * https://www.suse.com/security/cve/CVE-2026-46120.html
  * https://www.suse.com/security/cve/CVE-2026-46173.html
  * https://www.suse.com/security/cve/CVE-2026-46227.html
  * https://www.suse.com/security/cve/CVE-2026-46243.html
  * https://www.suse.com/security/cve/CVE-2026-52909.html
  * https://www.suse.com/security/cve/CVE-2026-52943.html
  * https://www.suse.com/security/cve/CVE-2026-53362.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1260524
  * https://bugzilla.suse.com/show_bug.cgi?id=1262759
  * https://bugzilla.suse.com/show_bug.cgi?id=1263094
  * https://bugzilla.suse.com/show_bug.cgi?id=1263118
  * https://bugzilla.suse.com/show_bug.cgi?id=1263177
  * https://bugzilla.suse.com/show_bug.cgi?id=1263670
  * https://bugzilla.suse.com/show_bug.cgi?id=1264094
  * https://bugzilla.suse.com/show_bug.cgi?id=1264252
  * https://bugzilla.suse.com/show_bug.cgi?id=1264253
  * https://bugzilla.suse.com/show_bug.cgi?id=1264567
  * https://bugzilla.suse.com/show_bug.cgi?id=1264849
  * https://bugzilla.suse.com/show_bug.cgi?id=1265117
  * https://bugzilla.suse.com/show_bug.cgi?id=1265127
  * https://bugzilla.suse.com/show_bug.cgi?id=1265197
  * https://bugzilla.suse.com/show_bug.cgi?id=1265945
  * https://bugzilla.suse.com/show_bug.cgi?id=1266015
  * https://bugzilla.suse.com/show_bug.cgi?id=1266265
  * https://bugzilla.suse.com/show_bug.cgi?id=1267206
  * https://bugzilla.suse.com/show_bug.cgi?id=1267698
  * https://bugzilla.suse.com/show_bug.cgi?id=1267723
  * https://bugzilla.suse.com/show_bug.cgi?id=1267893
  * https://bugzilla.suse.com/show_bug.cgi?id=1268662
  * https://bugzilla.suse.com/show_bug.cgi?id=1269023
  * https://bugzilla.suse.com/show_bug.cgi?id=1269495
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