RHSA-2026:9514: Moderate: kernel security update
Moderate: kernel security update
Other sources
The kernel packages contain the Linux kernel, the core of any Linux operating system.Security Fix(es): kernel: smc: Fix use-after-free in pnetfindbasendev() (CVE-2025-40064) kernel: smc: Use skdstget() and dstdevrcu() in smcclcprfxmatch() (CVE-2025-40168) kernel: net/sched: clsu32: use skbheaderpointercareful() (CVE-2026-23204) kernel: kernel: Privilege escalation or denial of service via use-after-free in nftablesaddchain() (CVE-2026-23231) 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
Event History
Frequently Asked Questions
What is the severity of RHSA-2026:9514?
The severity of RHSA-2026:9514 is categorized as moderate.
How do I fix RHSA-2026:9514?
To fix RHSA-2026:9514, update to kernel version 4.18.0-372.188.1.el8_6.
What vulnerability does RHSA-2026:9514 address?
RHSA-2026:9514 addresses a use-after-free vulnerability in the SMC (Shared Memory Communications) implementation.
What systems are affected by RHSA-2026:9514?
RHSA-2026:9514 affects various Red Hat Enterprise Linux products including Server, Update Services for SAP Solutions, and Extended Update Support.
Is a reboot required after applying the fix for RHSA-2026:9514?
Yes, a reboot is required to apply the changes from the kernel update specified in RHSA-2026:9514.