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Unrated severityNVD Advisory· Published Sep 11, 2024· Updated May 4, 2025

drm/msm/dpu: move dpu_encoder's connector assignment to atomic_enable()

CVE-2024-45015

Description

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

drm/msm/dpu: move dpu_encoder's connector assignment to atomic_enable()

For cases where the crtc's connectors_changed was set without enable/active getting toggled , there is an atomic_enable() call followed by an atomic_disable() but without an atomic_mode_set().

This results in a NULL ptr access for the dpu_encoder_get_drm_fmt() call in the atomic_enable() as the dpu_encoder's connector was cleared in the atomic_disable() but not re-assigned as there was no atomic_mode_set() call.

Fix the NULL ptr access by moving the assignment for atomic_enable() and also use drm_atomic_get_new_connector_for_encoder() to get the connector from the atomic_state.

Patchwork: https://patchwork.freedesktop.org/patch/606729/

Affected products

90

Patches

0

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

3

News mentions

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