CVE-2024-45015

Severity CVSS v4.0:
Pending analysis
Type:
CWE-476 NULL Pointer Dereference
Publication date:
11/09/2024
Last modified:
13/09/2024

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> drm/msm/dpu: move dpu_encoder&amp;#39;s connector assignment to atomic_enable()<br /> <br /> For cases where the crtc&amp;#39;s connectors_changed was set without enable/active<br /> getting toggled , there is an atomic_enable() call followed by an<br /> atomic_disable() but without an atomic_mode_set().<br /> <br /> This results in a NULL ptr access for the dpu_encoder_get_drm_fmt() call in<br /> the atomic_enable() as the dpu_encoder&amp;#39;s connector was cleared in the<br /> atomic_disable() but not re-assigned as there was no atomic_mode_set() call.<br /> <br /> Fix the NULL ptr access by moving the assignment for atomic_enable() and also<br /> use drm_atomic_get_new_connector_for_encoder() to get the connector from<br /> the atomic_state.<br /> <br /> Patchwork: https://patchwork.freedesktop.org/patch/606729/

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 4.19 (including) 6.6.48 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.7 (including) 6.10.7 (excluding)
cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:*