CVE-2026-63853
High
Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set no_user_fence for VCN v4.0 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 fd852c048b46f9825e904a4f3f4538fe9d8827d9)
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedJul 19, 2026
First seenJul 19, 2026
Weakness typeCWE-20Improper input validation
How to fix
Update
- linux linux_kernel6.6.160, 6.12.114, 6.18.33, 7.0.10 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.19 ≤ v < 6.6.160, 6.7 ≤ v < 6.12.114, 6.13 ≤ v < 6.18.33, 6.19 ≤ v < 7.0.10, 7.1 | 6.6.160, 6.12.114, 6.18.33, 7.0.10 |
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