Bug 2393515 (CVE-2025-39693)

Summary: CVE-2025-39693 kernel: drm/amd/display: Avoid a NULL pointer dereference
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedKeywords: Security
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OS: Linux   
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Description OSIDB Bzimport 2025-09-05 18:03:40 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: Avoid a NULL pointer dereference

[WHY]
Although unlikely drm_atomic_get_new_connector_state() or
drm_atomic_get_old_connector_state() can return NULL.

[HOW]
Check returns before dereference.

(cherry picked from commit 1e5e8d672fec9f2ab352be121be971877bff2af9)
Comment 1 Jon Moroney 2025-09-05 21:26:06 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025090547-CVE-2025-39693-dcbb@gregkh/T