CVE-2025-38597

In the Linux kernel, the following vulnerability has been resolved: drm/rockchip: vop2: fail cleanly if missing a primary plane for a video-port Each window of a vop2 is usable by a specific set of video ports, so while binding the vop2, we look through the list of available windows trying to find one designated as primary-plane and usable by that specific port. The code later wants to use drm_crtc_init_with_planes with that found primary plane, but nothing has checked so far if a primary plane was actually found. For whatever reason, the rk3576 vp2 does not have a usable primary window (if vp0 is also in use) which brought the issue to light and ended in a null-pointer dereference further down. As we expect a primary-plane to exist for a video-port, add a check at the end of the window-iteration and fail probing if none was found.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/38682edbbad272b5f8c7bf55128b42cd10626f73	Patch
https://git.kernel.org/stable/c/45be183b9944f765b77623daffb024cb38d192bf
https://git.kernel.org/stable/c/8fc974776c668fef1fc73fefbf573a076bb073e8
https://git.kernel.org/stable/c/93857359a07e425b643178ce3c6e60a9e4605cac
https://git.kernel.org/stable/c/e1eef239399927b368f70a716044fb10085627c8	Patch
https://git.kernel.org/stable/c/f9f68bf1d0efeadb6c427c9dbb30f307a7def19b	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

30 Oct 2026, 13:18

Type	Values Removed	Values Added
References		() https://git.kernel.org/stable/c/93857359a07e425b643178ce3c6e60a9e4605cac -

21 Oct 2026, 13:18

Type	Values Removed	Values Added
References		() https://git.kernel.org/stable/c/45be183b9944f765b77623daffb024cb38d192bf - () https://git.kernel.org/stable/c/8fc974776c668fef1fc73fefbf573a076bb073e8 -

Information

Published : 2025-08-19 17:15

Updated : 2026-10-30 13:18

NVD link : CVE-2025-38597

Mitre link : CVE-2025-38597

CVE.ORG link : CVE-2025-38597

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

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Cada ventana de un vop2 es utilizable por un conjunto espec\u00edfico de puertos de v\u00eddeo, por lo que al vincular el vop2, revisamos la lista de ventanas disponibles intentando encontrar una designada como plano principal y utilizable por ese puerto espec\u00edfico. Posteriormente, el c\u00f3digo quiere usar drm_crtc_init_with_planes con ese plano principal encontrado, pero hasta ahora no se ha comprobado si realmente se encontr\u00f3 un plano principal. Por alguna raz\u00f3n, el vp2 rk3576 no tiene una ventana principal utilizable (si vp0 tambi\u00e9n est\u00e1 en uso), lo que sac\u00f3 a la luz el problema y termin\u00f3 en una desreferencia de puntero nulo m\u00e1s adelante. Como esperamos que exista un plano principal para un puerto de v\u00eddeo, agregue una comprobaci\u00f3n al final de la iteraci\u00f3n de la ventana y falle el sondeo si no se encuentra ninguno."}], "lastModified": "2026-10-30T13:18:06.573", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E079EAFD-DB0D-4171-A04F-254DAA719CB9", "versionEndExcluding": "6.15.10", "versionStartIncluding": "5.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "58182352-D7DF-4CC9-841E-03C1D852C3FB", "versionEndExcluding": "6.16.1", "versionStartIncluding": "6.16"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}