CVE-2026-63851drm/amdgpu/vcn: set no_user_fence for VCN v4.0.5 enc ring
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 547aad32edac17a3ec4989d8aad2426d0cbeb590 before 75091030f07b7957cc0646cd52e2d9d15f611483; 547aad32edac17a3ec4989d8aad2426d0cbeb590 builds before 6d9a98c5ed65ba92a09e4ca5a5f6941448145529; 547aad32edac17a3ec4989d8aad2426d0cbeb590 builds before 7f23b5c420b9f68a210c29c5123bace670aa8cc9; from 547aad32edac17a3ec4989d8aad2426d0cbeb590 before 589a254bf3e88204c8402b9cbccd5e23a0af990f | CNA record |
References
- https://git.kernel.org/stable/c/75091030f07b7957cc0646cd52e2d9d15f611483
- https://git.kernel.org/stable/c/6d9a98c5ed65ba92a09e4ca5a5f6941448145529
- https://git.kernel.org/stable/c/7f23b5c420b9f68a210c29c5123bace670aa8cc9
- https://git.kernel.org/stable/c/589a254bf3e88204c8402b9cbccd5e23a0af990f
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.