CVE-2024-42127 Affecting kernel-uek-devel package, versions <0:5.4.17-2136.335.4.el7uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEKDEVEL-7941851
  • published13 Sept 2024
  • disclosed30 Jul 2024

Introduced: 30 Jul 2024

CVE-2024-42127  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek-devel to version 0:5.4.17-2136.335.4.el7uek or higher.
This issue was patched in ELSA-2024-12610.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-devel package and not the kernel-uek-devel package as distributed by Oracle. See How to fix? for Oracle:7 relevant fixed versions and status.

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

drm/lima: fix shared irq handling on driver remove

lima uses a shared interrupt, so the interrupt handlers must be prepared to be called at any time. At driver removal time, the clocks are disabled early and the interrupts stay registered until the very end of the remove process due to the devm usage. This is potentially a bug as the interrupts access device registers which assumes clocks are enabled. A crash can be triggered by removing the driver in a kernel with CONFIG_DEBUG_SHIRQ enabled. This patch frees the interrupts at each lima device finishing callback so that the handlers are already unregistered by the time we fully disable clocks.

CVSS Scores

version 3.1