NULL Pointer Dereference Affecting kernel-rt-modules package, versions <0:5.14.0-284.85.1.rt14.370.el9_2


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (11th percentile)

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  • Snyk IDSNYK-RHEL9-KERNELRTMODULES-8082068
  • published24 Sept 2024
  • disclosed30 Jul 2024

Introduced: 30 Jul 2024

CVE-2024-42139  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade RHEL:9 kernel-rt-modules to version 0:5.14.0-284.85.1.rt14.370.el9_2 or higher.
This issue was patched in RHSA-2024:7005.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-modules package and not the kernel-rt-modules package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

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

ice: Fix improper extts handling

Extts events are disabled and enabled by the application ts2phc. However, in case where the driver is removed when the application is running, a specific extts event remains enabled and can cause a kernel crash. As a side effect, when the driver is reloaded and application is started again, remaining extts event for the channel from a previous run will keep firing and the message "extts on unexpected channel" might be printed to the user.

To avoid that, extts events shall be disabled when PTP is released.

CVSS Scores

version 3.1