CVE-2026-43440

In the Linux kernel, the following vulnerability has been resolved: net/mana: Null service_wq on setup error to prevent double destroy In mana_gd_setup() error path, set gc->service_wq to NULL after destroy_workqueue() to match the cleanup in mana_gd_cleanup(). This prevents a use-after-free if the workqueue pointer is checked after a failed setup.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/59489ce60d7412ed82fb1d8002faa3102dcd4916	Patch
https://git.kernel.org/stable/c/6c92392602b451e3869f15ab685f8f650e942b13	Patch
https://git.kernel.org/stable/c/87c2302813abc55c46485711a678e3c312b00666	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc2::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc3::::::

History

11 Nov 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta: net/mana: Anular service_wq en error de configuración para evitar la doble destrucción En la ruta de error de mana_gd_setup(), establecer gc -> service_wq a NULL después de destroy_workqueue() para que coincida con la limpieza en mana_gd_cleanup(). Esto evita un uso después de liberación si se verifica el puntero de la cola de trabajo después de una configuración fallida.

Information

Published : 2026-05-08 15:16

Updated : 2026-11-11 20:10

NVD link : CVE-2026-43440

Mitre link : CVE-2026-43440

CVE.ORG link : CVE-2026-43440

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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