CVE-2026-80705 - drm/amd/display: check if dml21_add_phantom_plane() is successful

MEDIUM

drm/amd/display: check if dml21_add_phantom_plane() is successful

Published Aug 28, 2026

5.5

MEDIUM

CVSS 3.1

EPSS 0.20%

Verify that the phantom plane was allocated to avoid a later segfault.

(cherry picked from commit 5adb54abe5a8e82cbff7f8806db30a5f4924329f)

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

unaffected

Version	Status	Constraints
	affected
	affected

affected

Product	Package	State	Advisory
Red Hat Enterprise Linux 10	kernel	Fix deferred	n/a
Red Hat Enterprise Linux 6	kernel	Out of support scope	n/a
Red Hat Enterprise Linux 7	kernel	Not affected	n/a
Red Hat Enterprise Linux 7	kernel-rt	Not affected	n/a
Red Hat Enterprise Linux 8	kernel	Not affected	n/a
Red Hat Enterprise Linux 8	kernel-rt	Not affected	n/a
Red Hat Enterprise Linux 9	kernel	Fix deferred	n/a
Red Hat Enterprise Linux 9	kernel-rt	Fix deferred	n/a

No remediation recorded yet.

Weaknesses (1)

CWE-476

NULL Pointer Dereference

Link	Providers	Tags
https://access.redhat.com/security/cve/CVE-2026-80705		Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2525449		Issue Tracking
https://git.kernel.org/stable/c/000acb4ce7fb9feba3072ce468ad681f6585cd5d
https://git.kernel.org/stable/c/062cfd6c678f6647c8841f684d6dadab08d95512
https://lore.kernel.org/linux-cve-announce/2026082807-CVE-2026-80705-8eb2@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2026-80705
https://www.cve.org/CVERecord?id=CVE-2026-80705