CVE-2022-50360
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-17

Last updated on: 2025-12-10

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: drm/msm/dp: fix aux-bus EP 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 aux-bus, an attempt to populate the bus a second time will simply fail ("DP AUX EP device already populated"). Fix this by tying the lifetime of the EP device to the DRM device rather than DP controller platform device. Patchwork: https://patchwork.freedesktop.org/patch/502672/
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Meta Information
Published
2025-09-17
Last Modified
2025-12-10
Generated
2026-05-27
AI Q&A
2025-09-17
EPSS Evaluated
2026-05-25
NVD
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 5.19 (inc) to 6.0.7 (exc)
linux linux_kernel 6.1
linux linux_kernel 6.1
Helpful Resources
Exploitability
CWE
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CWE ID Description
CWE-NVD-CWE-noinfo
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AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability in the Linux kernel relates to the drm/msm/dp component where device-managed resources allocated after component binding are not properly tied to the lifetime of the aggregate DRM device. As a result, these resources may not be released correctly if the binding of the aggregate device is deferred. This can cause resource leaks or failures when the system attempts to bind the device again and allocate resources a second time. Specifically, for the DP aux-bus, a second attempt to populate the bus fails with an error indicating the device is already populated. The fix involves tying the lifetime of the EP device to the DRM device instead of the DP controller platform device to ensure proper resource management.


How can this vulnerability impact me? :

This vulnerability can lead to resource leaks in the system or failure to bind the aggregate DRM device when binding is retried. This means that the device may not function correctly or may fail to initialize properly, potentially causing system instability or degraded performance related to display or graphics functionality that relies on the DRM subsystem.


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