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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Thu, 18 Sep 2025 12:45:00 +0000
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Thu, 18 Sep 2025 00:15:00 +0000
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cvssV3_1
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Wed, 17 Sep 2025 15:00:00 +0000
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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/ | |
Title | drm/msm/dp: fix aux-bus EP lifetime | |
References |
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Status: PUBLISHED
Assigner: Linux
Published: 2025-09-17T14:56:12.260Z
Updated: 2025-09-17T14:56:12.260Z
Reserved: 2025-09-17T14:53:06.994Z
Link: CVE-2022-50360

No data.

Status : Awaiting Analysis
Published: 2025-09-17T15:15:34.753
Modified: 2025-09-18T13:43:34.310
Link: CVE-2022-50360
