CVE-2026-63850

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set no_user_fence for VCN v5.0.0 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 49b1fbbb5a071197ee71e2d70959b1cb29bdc317)

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 6% of CVEs (scores of 2026-10-25)

CWE

CWE-20

Published

2026-07-19

Modified

2026-10-22

Record from

the NVD, synced 2026-10-23

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/139a8a52ef4349c62129703b3a3e3a6ae4d634eb
• https://git.kernel.org/stable/c/2c350f3cd94be847ac216e1358ec7001eaaf0934
• https://git.kernel.org/stable/c/8cae0ce77de492d7c31c1532a2e80c0c6e7e58cb
• https://git.kernel.org/stable/c/9f5a1459ecc3195282be617639d710b54779c9dc

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