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SUSE 15 SP4 Kernel Important Update Fixes 21 Security Issues 2026-2864-1

suse
Calendar Grey July 13, 2026
Dist Suse Esm H88
Update released for SUSE Linux Enterprise 15 SP4 Kernel addressing 21 important vulnerabilities and enhancing security.
An update that solves 21 vulnerabilities can now be installed.

Summary

## This update for the SUSE Linux Enterprise Kernel 5.14.21-150400.24.179 fixes various security issues The following security issues were fixed: * CVE-2025-71089: iommu: disable SVA when CONFIG_X86 is set (bsc#1256615). * CVE-2026-23393: bridge: cfm: Fix race condition in peer_mep deletion (bsc#1260524). * 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).

Topics%20covered

Topics Covered

security advisory security update security issue SuSE important kernel

References

* bsc#1256615

* bsc#1260524

* bsc#1262759

* bsc#1263118

* bsc#1263177

* bsc#1263670

* bsc#1264094

* bsc#1264252

* bsc#1264253

* bsc#1264849

* bsc#1265127

* bsc#1265197

* bsc#1265945

* bsc#1266015

* bsc#1266265

* bsc#1267206

* bsc#1267698

* bsc#1267723

* bsc#1267893

* bsc#1268662

* bsc#1269023

Cross-

* CVE-2025-71089

* CVE-2026-23393

* 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-2026-43190

* 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

CVSS scores:

* CVE-2025-71089 ( 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

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2864-1
Release Date: 2026-07-11T21:22:55Z
Rating: important

Topics%20covered

Topics Covered

security advisory security update security issue SuSE important kernel

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