CVE-2026-63850drm/amdgpu/vcn: set no_user_fence for VCN v5.0.0 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 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
- 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 b6d1a06320519ac3bfda6ce81067a1bc409b9cff before 9f5a1459ecc3195282be617639d710b54779c9dc; from b6d1a06320519ac3bfda6ce81067a1bc409b9cff before 139a8a52ef4349c62129703b3a3e3a6ae4d634eb; from b6d1a06320519ac3bfda6ce81067a1bc409b9cff before 2c350f3cd94be847ac216e1358ec7001eaaf0934; from b6d1a06320519ac3bfda6ce81067a1bc409b9cff before 8cae0ce77de492d7c31c1532a2e80c0c6e7e58cb | CNA record |
References
- https://git.kernel.org/stable/c/9f5a1459ecc3195282be617639d710b54779c9dc
- https://git.kernel.org/stable/c/139a8a52ef4349c62129703b3a3e3a6ae4d634eb
- https://git.kernel.org/stable/c/2c350f3cd94be847ac216e1358ec7001eaaf0934
- https://git.kernel.org/stable/c/8cae0ce77de492d7c31c1532a2e80c0c6e7e58cb
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.