CVE-2026-64078 Affecting kernel-rt-debug package, versions <0:6.12.0-211.63.1.el10_2


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.13% (3rd percentile)

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  • Snyk IDSNYK-ALMALINUX10-KERNELRTDEBUG-20934105
  • published14 Oct 2026
  • disclosed6 Oct 2026

Introduced: 6 Oct 2026

NewCVE-2026-64078  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:10 kernel-rt-debug to version 0:6.12.0-211.63.1.el10_2 or higher.
This issue was patched in ALSA-2026:76738.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug package and not the kernel-rt-debug package as distributed by AlmaLinux. See How to fix? for AlmaLinux:10 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

netfilter: x_tables: add and use xtables_unregister_table_exit

Previous change added xtables_unregister_table_pre_exit to detach the table from the packetpath and to unlink it from the active table list. In case of rmmod, userspace that is doing set/getsockopt for this table will not be able to re-instantiate the table:

  1. The larval table has been removed already
  2. existing instantiated table is no longer on the xt pernet table list.

This adds the second stage helper:

unlink the table from the dying list, free the hook ops (if any) and do the audit notification. It replaces xt_unregister_table().

CVSS Base Scores

version 3.1