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SUSE Kernel Important Fix for 7 Issues in Advisory SUSE-SU-2026-22386-1

suse
Calendar Grey July 1, 2026
Dist Suse Esm H88
This advisory details an important security update for SUSE Linux Kernel addressing seven vulnerabilities with fixes.
An update that solves seven vulnerabilities and has one fix can now be installed.

Summary

## This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.9.1 fixes various security issues The following security issues were fixed: * CVE-2026-23278: netfilter: nf_tables: always walk all pending catchall elements (bsc#1260907). * CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (bsc#1261640). * CVE-2026-31504: net: fix fanout UAF in packet_release() via NETDEV_UP race (bsc#1263088). * CVE-2026-31554: futex: Require sys_futex_requeue() to have identical flags (bsc#1263108). * CVE-2026-31694: fuse: reject oversized dirents in page cache (bsc#1263902). * CVE-2026-43503: final dirty.frag related fixes (bsc#1266229). * CVE-2026-46323: net: gro: don't merge zcopy skbs (bsc#1268282). * net/sched: fix pedit partial COW leading to page cache (bsc#1267625).

Topics%20covered

Topics Covered

security advisory SuSE important heap overflow kernel fix

References

* bsc#1260907

* bsc#1261640

* bsc#1263088

* bsc#1263108

* bsc#1263902

* bsc#1266229

* bsc#1267625

* bsc#1268282

Cross-

* CVE-2026-23278

* CVE-2026-31402

* CVE-2026-31504

* CVE-2026-31554

* CVE-2026-31694

* CVE-2026-43503

* CVE-2026-46323

CVSS scores:

* CVE-2026-23278 ( SUSE ): 7.3

CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

* CVE-2026-23278 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2026-23278 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2026-31402 ( SUSE ): 8.8

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

* CVE-2026-31402 ( SUSE ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

* CVE-2026-31402 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:22386-1
Release Date: 2026-06-25T11:19:45Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE important heap overflow kernel fix

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