Riskcovery

CVE-2022-50292

drm/msm/dp: fix bridge lifetime

State
Published
Severity
Not scored
Published
Sep 15, 2025
Updated
May 11, 2026
Reserved
Sep 15, 2025

Read the record on cve.org

Description

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

drm/msm/dp: fix bridge lifetime

Device-managed resources allocated post component bind must be tied to the lifetime of the aggregate DRM device or they will not necessarily be released when binding of the aggregate device is deferred.

This can lead resource leaks or failure to bind the aggregate device when binding is later retried and a second attempt to allocate the resources is made.

For the DP bridges, previously allocated bridges will leak on probe deferral.

Fix this by amending the DP parser interface and tying the lifetime of the bridge device to the DRM device rather than DP platform device.

Patchwork: https://patchwork.freedesktop.org/patch/502667/

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • c3bf8e21b38a89418f2e22173b229aaad2306815 to before 7eda6977e8058dd45607a5bbc6517a0f42ccd6c9Affected
  • c3bf8e21b38a89418f2e22173b229aaad2306815 to before 16194958f888d63839042d1190f7001e5ddec47bAffected
LinuxLinux
  • 5.19Affected
  • before 5.19Not affected
  • 6.0.7 through 6.0.*Not affected
  • 6.1 and laterNot affected

References

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