CVE-2022-49490 Affecting kernel-64kb-devel 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
0.04% (13th percentile)

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  • Snyk IDSNYK-SLES154-KERNEL64KBDEVEL-9533533
  • published27 Mar 2025
  • disclosed26 Mar 2025

Introduced: 26 Mar 2025

NewCVE-2022-49490  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 kernel-64kb-devel 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-64kb-devel package and not the kernel-64kb-devel 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/msm/mdp5: Return error code in mdp5_pipe_release when deadlock is detected

mdp5_get_global_state runs the risk of hitting a -EDEADLK when acquiring the modeset lock, but currently mdp5_pipe_release doesn't check for if an error is returned. Because of this, there is a possibility of mdp5_pipe_release hitting a NULL dereference error.

To avoid this, let's have mdp5_pipe_release check if mdp5_get_global_state returns an error and propogate that error.

Changes since v1:

  • Separated declaration and initialization of *new_state to avoid compiler warning
  • Fixed some spelling mistakes in commit message

Changes since v2:

  • Return 0 in case where hwpipe is NULL as this is considered normal behavior
  • Added 2nd patch in series to fix a similar NULL dereference issue in mdp5_mixer_release

Patchwork: https://patchwork.freedesktop.org/patch/485179/

CVSS Base Scores

version 3.1