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openSUSE Kernel Important Security Issues Fix Advisory 2026-1899-1

suse
Calendar Grey May 18, 2026
Dist Suse Esm H88
Install important kernel updates to resolve multiple vulnerabilities in openSUSE. Secure your system now!
An update that solves five vulnerabilities can now be installed.

Summary

## The SUSE Linux Enterprise 15 SP5 RT kernel was updated to fix various security issues The following security issues were fixed: * CVE-2025-54518: x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache (bsc#1264013). * CVE-2026-46300: net: skbuff: propagate shared-frag marker through pskb_copy() (bsc#1265209). * CVE-2026-43284: xfrm: esp: avoid in-place decrypt on shared skb frags (bsc#1264449). * CVE-2026-43500: rxrpc: Also unshare DATA/RESPONSE packets when paged frags are present (aka Dirty Frag) (bsc#1264450). * CVE-2026-46333: ptrace: Logic bug in the Linux kernel's __ptrace_may_access() function (bsc#1265308). The following non security issues were fixed: * io-wq: check that the predecessor is hashed in io_wq_remove_pending() (git- fixes).

Topics%20covered

Topics Covered

security advisory important kernel system update OpenSUSE CVE

References

* bsc#1264013

* bsc#1264449

* bsc#1264450

* bsc#1265209

* bsc#1265308

Cross-

* CVE-2025-54518

* CVE-2026-43284

* CVE-2026-43500

* CVE-2026-46300

* CVE-2026-46333

CVSS scores:

* CVE-2025-54518 ( 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-2025-54518 ( SUSE ): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-54518 ( NVD ): 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

* CVE-2026-43284 ( SUSE ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

* CVE-2026-43284 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:1899-1
Release Date: 2026-05-17T13:17:08Z
Rating: important

Topics%20covered

Topics Covered

security advisory important kernel system update OpenSUSE CVE

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