CVE-2024-58091 Affecting kernel-uek-debug package, versions <0:6.12.0-103.40.4.1.el10uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.03% (7th percentile)

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  • Snyk IDSNYK-ORACLE10-KERNELUEKDEBUG-12589699
  • published10 Sept 2025
  • disclosed27 Mar 2025

Introduced: 27 Mar 2025

CVE-2024-58091  (opens in a new tab)

How to fix?

Upgrade Oracle:10 kernel-uek-debug to version 0:6.12.0-103.40.4.1.el10uek or higher.
This issue was patched in ELSA-2025-20551.

NVD Description

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

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

drm/fbdev-dma: Add shadow buffering for deferred I/O

DMA areas are not necessarily backed by struct page, so we cannot rely on it for deferred I/O. Allocate a shadow buffer for drivers that require deferred I/O and use it as framebuffer memory.

Fixes driver errors about being "Unable to handle kernel NULL pointer dereference at virtual address" or "Unable to handle kernel paging request at virtual address".

The patch splits drm_fbdev_dma_driver_fbdev_probe() in an initial allocation, which creates the DMA-backed buffer object, and a tail that sets up the fbdev data structures. There is a tail function for direct memory mappings and a tail function for deferred I/O with the shadow buffer.

It is no longer possible to use deferred I/O without shadow buffer. It can be re-added if there exists a reliably test for usable struct page in the allocated DMA-backed buffer object.

CVSS Base Scores

version 3.1