CVE-2025-39820

drm/msm/dpu: Add a null ptr check for dpu_encoder_needs_modeset

State: Published
Severity: 5.5 Medium
Published: Sep 16, 2025
Updated: May 11, 2026
Reserved: Apr 16, 2025

Description

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

drm/msm/dpu: Add a null ptr check for dpu_encoder_needs_modeset

The drm_atomic_get_new_connector_state() can return NULL if the connector is not part of the atomic state. Add a check to prevent a NULL pointer dereference.

This follows the same pattern used in dpu_encoder_update_topology() within the same file, which checks for NULL before using conn_state.

Patchwork: https://patchwork.freedesktop.org/patch/665188/

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-476 NULL Pointer Dereference

Affected Products

Product	Versions
LinuxLinux	1ce69c265a53c61c5c29f97f542ff89af3f3d7e7 to before aaec54254b02f5959c3670177037464d828b2140Affected 1ce69c265a53c61c5c29f97f542ff89af3f3d7e7 to before abebfed208515726760d79cf4f9f1a76b9a10a84Affected
LinuxLinux	6.15Affected before 6.15Not affected 6.16.5 through 6.16.*Not affected 6.17 and laterNot affected

References

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