CVE-2025-39740

In the Linux kernel, the following vulnerability has been resolved: drm/xe/migrate: prevent potential UAF If we hit the error path, the previous fence (if there is one) has already been put() prior to this, so doing a fence_wait could lead to UAF. Tweak the flow to do to the put() until after we do the wait. (cherry picked from commit 9b7ca35ed28fe5fad86e9d9c24ebd1271e4c9c3e)

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/145832fbdd17b1d77ffd6cdd1642259e101d1b7e	Patch
https://git.kernel.org/stable/c/7e46fa64a4b94208563c3a5bf1d7f4346f94abea	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.17:rc1::::::

History

19 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta: drm/xe/migrate: prevenir UAF potencial Si alcanzamos la ruta de error, la anterior fence (si hay una) ya ha sido put() antes de esto, por lo que realizar un fence_wait podría llevar a UAF. Ajustar el flujo para que el put() se realice después de la espera. (extraído del commit 9b7ca35ed28fe5fad86e9d9c24ebd1271e4c9c3e)

Information

Published : 2025-09-11 17:15

Updated : 2026-10-19 21:10

NVD link : CVE-2025-39740

Mitre link : CVE-2025-39740

CVE.ORG link : CVE-2025-39740

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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