CVE-2026-63849

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set no_user_fence for VCN v5.0.1 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 e16be95a2c3ee712b142cb27d2dca0b461181359)

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/081ef0e46c9cdd26c0db0ef721470393d36b6655	Patch
https://git.kernel.org/stable/c/5a4bffd67e94944ed3db26a959346cfb7fabaecd	Patch
https://git.kernel.org/stable/c/8f4954722eab88e10c4ea0c0d3b1269c31421d3a	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:7.1:rc1::::::

History

22 Oct 2026, 19:18

Type	Values Removed	Values Added
References	~~() https://git.kernel.org/stable/c/081ef0e46c9cdd26c0db0ef721470393d36b6655 -~~	() https://git.kernel.org/stable/c/081ef0e46c9cdd26c0db0ef721470393d36b6655 - Patch
References	~~() https://git.kernel.org/stable/c/5a4bffd67e94944ed3db26a959346cfb7fabaecd -~~	() https://git.kernel.org/stable/c/5a4bffd67e94944ed3db26a959346cfb7fabaecd - Patch
References	~~() https://git.kernel.org/stable/c/8f4954722eab88e10c4ea0c0d3b1269c31421d3a -~~	() https://git.kernel.org/stable/c/8f4954722eab88e10c4ea0c0d3b1269c31421d3a - Patch
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::::::

19 Oct 2026, 20:19

Type	Values Removed	Values Added
CWE		CWE-20

Information

Published : 2026-07-19 15:16

Updated : 2026-10-22 19:18

NVD link : CVE-2026-63849

Mitre link : CVE-2026-63849

CVE.ORG link : CVE-2026-63849

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo CWE-20

Improper Input Validation

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