CVE-2022-49506 Affecting kernel-obs-build package, versions <5.14.21-150400.24.158.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (19th percentile)

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  • Snyk IDSNYK-SLES154-KERNELOBSBUILD-9533914
  • published27 Mar 2025
  • disclosed26 Mar 2025

Introduced: 26 Mar 2025

NewCVE-2022-49506  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 kernel-obs-build to version 5.14.21-150400.24.158.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-obs-build package and not the kernel-obs-build package as distributed by SLES. See How to fix? for SLES:15.4 relevant fixed versions and status.

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

drm/mediatek: Add vblank register/unregister callback functions

We encountered a kernel panic issue that callback data will be NULL when it's using in ovl irq handler. There is a timing issue between mtk_disp_ovl_irq_handler() and mtk_ovl_disable_vblank().

To resolve this issue, we use the flow to register/unregister vblank cb:

  • Register callback function and callback data when crtc creates.
  • Unregister callback function and callback data when crtc destroies.

With this solution, we can assure callback data will not be NULL when vblank is disable.

CVSS Base Scores

version 3.1