CVE-2026-63851

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set no_user_fence for VCN v4.0.5 enc ring VCN encoder and decoder rings do not support 64-bit user fence writes, reject CS submissions with user fences. (cherry picked from commit 084d94ac93707bdda07efb5cee786f632de4219b)

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/589a254bf3e88204c8402b9cbccd5e23a0af990f	Patch
https://git.kernel.org/stable/c/6d9a98c5ed65ba92a09e4ca5a5f6941448145529	Patch
https://git.kernel.org/stable/c/75091030f07b7957cc0646cd52e2d9d15f611483	Patch
https://git.kernel.org/stable/c/7f23b5c420b9f68a210c29c5123bace670aa8cc9	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::::::::
	cpe:2.3:o:linux:linux_kernel:7.1:rc1::::::

History

26 Oct 2026, 19:59

Type	Values Removed	Values Added
CWE		NVD-CWE-noinfo
First Time		Linux linux Kernel Linux
CPE		cpe:2.3:o:linux:linux_kernel:::::::: cpe:2.3:o:linux:linux_kernel:7.1:rc1::::::
References	~~() https://git.kernel.org/stable/c/589a254bf3e88204c8402b9cbccd5e23a0af990f -~~	() https://git.kernel.org/stable/c/589a254bf3e88204c8402b9cbccd5e23a0af990f - Patch
References	~~() https://git.kernel.org/stable/c/6d9a98c5ed65ba92a09e4ca5a5f6941448145529 -~~	() https://git.kernel.org/stable/c/6d9a98c5ed65ba92a09e4ca5a5f6941448145529 - Patch
References	~~() https://git.kernel.org/stable/c/75091030f07b7957cc0646cd52e2d9d15f611483 -~~	() https://git.kernel.org/stable/c/75091030f07b7957cc0646cd52e2d9d15f611483 - Patch
References	~~() https://git.kernel.org/stable/c/7f23b5c420b9f68a210c29c5123bace670aa8cc9 -~~	() https://git.kernel.org/stable/c/7f23b5c420b9f68a210c29c5123bace670aa8cc9 - Patch

19 Oct 2026, 20:19

Type	Values Removed	Values Added
CWE		CWE-20

Information

Published : 2026-07-19 15:16

Updated : 2026-10-26 19:59

NVD link : CVE-2026-63851

Mitre link : CVE-2026-63851

CVE.ORG link : CVE-2026-63851

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo CWE-20

Improper Input Validation

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