CVE-2026-43146

In the Linux kernel, the following vulnerability has been resolved: media: iris: Add buffer to list only after successful allocation Move `list_add_tail()` to after `dma_alloc_attrs()` succeeds when creating internal buffers. Previously, the buffer was enqueued in `buffers->list` before the DMA allocation. If the allocation failed, the function returned `-ENOMEM` while leaving a partially initialized buffer in the list, which could lead to inconsistent state and potential leaks. By adding the buffer to the list only after `dma_alloc_attrs()` succeeds, we ensure the list contains only valid, fully initialized buffers.

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/2d0bbd982dfdd67da488a772f7a8a1bdca7642bf	Patch
https://git.kernel.org/stable/c/45b30f65feeb4d5570d5337793bb0f298be813d2	Patch
https://git.kernel.org/stable/c/98b4c4c90f1e11caecbe2093dbe3a901d338bc81	Patch

Configurations

Configuration 1 (hide)

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

History

11 Nov 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta: media: iris: Añadir búfer a la lista solo después de una asignación exitosa Mover ’list_add_tail()’ a después de que ’dma_alloc_attrs()’ tenga éxito al crear búferes internos. Anteriormente, el búfer se encolaba en ’buffers -> list’ antes de la asignación DMA. Si la asignación fallaba, la función devolvía ’-ENOMEM’ mientras dejaba un búfer parcialmente inicializado en la lista, lo que podría llevar a un estado inconsistente y posibles fugas. Al añadir el búfer a la lista solo después de que ’dma_alloc_attrs()’ tenga éxito, nos aseguramos de que la lista contenga solo búferes válidos y completamente inicializados.

Information

Published : 2026-05-06 12:16

Updated : 2026-11-11 21:10

NVD link : CVE-2026-43146

Mitre link : CVE-2026-43146

CVE.ORG link : CVE-2026-43146

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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