Security update for the Linux Kernel (Live Patch 18 for SUSE Linux Enterprise Micro 6.0)

Announcement ID:	SUSE-SU-2026:22684-1
Release Date:	2026-07-16T08:59:23Z
Rating:	important
References:	bsc#1260524 bsc#1262759 bsc#1263094 bsc#1263177 bsc#1263670 bsc#1264252 bsc#1264253 bsc#1264567 bsc#1264849 bsc#1265117 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-2026-31586 CVE-2026-31685 CVE-2026-43025 CVE-2026-43027 CVE-2026-43037 CVE-2026-43120 CVE-2026-43190 CVE-2026-43366 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-2026-31586 ( 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-2026-43025 ( 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-2026-43494 ( 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 CVE-2026-53362 ( 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 Micro 6.1

An update that solves 21 vulnerabilities can now be installed.

Description:

This update for the SUSE Linux Enterprise Kernel 6.4.0-41.1 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-2026-31586: 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-2026-43025: 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-2026-43494: 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 Micro 6.1
  zypper in -t patch SUSE-SLE-Micro-6.1-kernel-526=1

Package List:

• SUSE Linux Micro 6.1 (s390x x86_64)
  • kernel-livepatch-MICRO-6-0_Update_18-debugsource-6-1.1
  • kernel-livepatch-6_4_0-41-default-6-1.1
  • kernel-livepatch-6_4_0-41-default-debuginfo-6-1.1

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-2026-31586.html
• https://www.suse.com/security/cve/CVE-2026-31685.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-2026-43494.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=1263177
• https://bugzilla.suse.com/show_bug.cgi?id=1263670
• 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=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