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SUSE Kernel Important Security Update 2026-2317-1 addressing 10 issues

suse
Calendar Grey June 10, 2026
Dist Suse Esm H88
Major SUSE Linux Security Update for Kernel addresses 10 vulnerabilities impacting system performance and stability.
An update that solves 10 vulnerabilities can now be installed.

Summary

## The SUSE Linux Enterprise 11 SP4 kernel was updated to fix various security issues The following security issues were fixed: * CVE-2026-23271: perf: Fix __perf_event_overflow() vs perf_remove_from_context() race (bsc#1260018). * CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (bsc#1261638). * CVE-2026-31607: usbip: validate number_of_packets in usbip_pack_ret_submit() (bsc#1263600). * CVE-2026-31685: netfilter: ip6t_eui64: reject invalid MAC header for all packets (bsc#1263668). * CVE-2026-43037: ip6_tunnel: clear skb2->cb in ip4ip6_err() (bsc#1263995). * CVE-2026-43126: ALSA: mixer: oss: Add card disconnect checkpoints (bsc#1264634). * CVE-2026-43190: netfilter: xt_tcpmss: check remaining length before reading optlen (bsc#1264848).

Topics%20covered

Topics Covered

security advisory SuSE important heap overflow kernel 10 vulnerabilities

References

* bsc#1260018

* bsc#1261638

* bsc#1263600

* bsc#1263668

* bsc#1263995

* bsc#1264634

* bsc#1264848

* bsc#1265126

* bsc#1266001

Cross-

* CVE-2026-23271

* CVE-2026-31402

* CVE-2026-31607

* CVE-2026-31685

* CVE-2026-43037

* CVE-2026-43126

* CVE-2026-43190

* CVE-2026-43437

* CVE-2026-43499

* CVE-2026-46243

CVSS scores:

* CVE-2026-23271 ( SUSE ): 5.8

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

* CVE-2026-23271 ( SUSE ): 5.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H

* CVE-2026-23271 ( 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

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2317-1
Release Date: 2026-06-09T13:20:54Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE important heap overflow kernel 10 vulnerabilities

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