RHSA-2026:95587: Important: kpatch-patch-4_18_0-553_109_1, kpatch-patch-4_18_0-553_125_1, kpatch-patch-4_18_0-553_158_1, kpatch-patch-4_18_0-553_72_1, and kpatch-patch-4_18_0-553_85_1 security update
Important: kpatch-patch-4180-5531091, kpatch-patch-4180-5531251, kpatch-patch-4180-5531581, kpatch-patch-4180-553721, and kpatch-patch-4180-553851 security update
Other sources
This is a kernel live patch module which can be loaded by the kpatch command line utility to modify the code of a running kernel. This patch module is targeted for kernel-4.18.0-553.109.1.el810.Security Fix(es): kernel: ipc: limit nextid allocation to the valid ID range (CVE-2026-52923) kernel: udp: fix potential use-after-free in tunnel segmentation (CVE-2026-74705) kernel: net: tun: bound receive headroom (CVE-2026-81000) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
— Red Hat
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
redhat/kpatch-patchto a version that resolves this vulnerability.Fixed in 4_18_0-553_109_1-1-15.el8_10 - Upgrade
Upgrade
redhat/kpatch-patchto a version that resolves this vulnerability.Fixed in 4_18_0-553_125_1-1-12.el8_10 - Upgrade
Upgrade
redhat/kpatch-patchto a version that resolves this vulnerability.Fixed in 4_18_0-553_158_1-1-4.el8_10 - Upgrade
Upgrade
redhat/kpatch-patchto a version that resolves this vulnerability.Fixed in 4_18_0-553_72_1-1-19.el8_10 - Upgrade
Upgrade
redhat/kpatch-patchto a version that resolves this vulnerability.Fixed in 4_18_0-553_85_1-1-17.el8_10 - Upgrade
Upgrade
redhat/kpatch-patchto a version that resolves this vulnerability.Fixed in 4_18_0-553_109_1-debuginfo-1-15.el8_10 - Upgrade
Upgrade
redhat/kpatch-patchto a version that resolves this vulnerability.Fixed in 4_18_0-553_109_1-debugsource-1-15.el8_10 - Upgrade
Upgrade
redhat/kpatch-patchto a version that resolves this vulnerability.Fixed in 4_18_0-553_125_1-debuginfo-1-12.el8_10 - Upgrade
Upgrade
redhat/kpatch-patchto a version that resolves this vulnerability.Fixed in 4_18_0-553_125_1-debugsource-1-12.el8_10 - Upgrade
Upgrade
redhat/kpatch-patchto a version that resolves this vulnerability.Fixed in 4_18_0-553_158_1-debuginfo-1-4.el8_10 - Upgrade
Upgrade
redhat/kpatch-patchto a version that resolves this vulnerability.Fixed in 4_18_0-553_158_1-debugsource-1-4.el8_10 - Upgrade
Upgrade
redhat/kpatch-patchto a version that resolves this vulnerability.Fixed in 4_18_0-553_72_1-debuginfo-1-19.el8_10 - Upgrade
Upgrade
redhat/kpatch-patchto a version that resolves this vulnerability.Fixed in 4_18_0-553_72_1-debugsource-1-19.el8_10 - Upgrade
Upgrade
redhat/kpatch-patchto a version that resolves this vulnerability.Fixed in 4_18_0-553_85_1-debuginfo-1-17.el8_10 - Upgrade
Upgrade
redhat/kpatch-patchto a version that resolves this vulnerability.Fixed in 4_18_0-553_85_1-debugsource-1-17.el8_10 - Upgrade
Upgrade
kernelto a version that resolves this vulnerability.Fixed in 4.18.0-553.109.1.el8_10Patch kpatch-patch-4_18_0-553_109_1 - Upgrade
Upgrade
kernelto a version that resolves this vulnerability.Patch kpatch-patch-4_18_0-553_125_1 - Upgrade
Upgrade
kernelto a version that resolves this vulnerability.Patch kpatch-patch-4_18_0-553_158_1 - Upgrade
Upgrade
kernelto a version that resolves this vulnerability.Patch kpatch-patch-4_18_0-553_72_1 - Upgrade
Upgrade
kernelto a version that resolves this vulnerability.Patch kpatch-patch-4_18_0-553_85_1
Event History
Frequently Asked Questions
Can this live patch module be used with any RHEL 8 kernel?
No. The module described is targeted specifically for kernel-4.18.0-553.109.1.el8_10; compatibility with other kernel builds is not stated.
How is this update applied?
It is a kernel live patch module that can be loaded with the kpatch command-line utility to modify the code of a running kernel.