CVE-2026-63855
drm/amdgpu/vcn: set no_user_fence for VCN v2.5 enc/dec rings
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set no_user_fence for VCN v2.5 enc/dec rings VCN encoder and decoder rings do not support 64-bit user fence writes, reject CS submissions with user fences. (cherry picked from commit efc9dd5590894109bce9a0bfe1fa5592dd6b20b1)
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jul 19, 2026 |
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Affected Versions
Linux / Linux
28c17d72072b7ce5cc13a527dcbfc045cc995e7d < 2c6fb056567efb49f8674108b86088a1cfaa86d0 28c17d72072b7ce5cc13a527dcbfc045cc995e7d < 8f0ea4524dc71c6c9ec97f2711f46e12f624140f 28c17d72072b7ce5cc13a527dcbfc045cc995e7d < 602d4c5872b25ddd4d82fb2025efb9a05b187bb3 28c17d72072b7ce5cc13a527dcbfc045cc995e7d < 5a3c6f76cab164a5d803084908d7050f649ab7f9 28c17d72072b7ce5cc13a527dcbfc045cc995e7d < 4f317863a3ab212a027d8c8c3cc3af4e3fb95704
Linux / Linux
5.4
References
git.kernel.org: https://git.kernel.org/stable/c/2c6fb056567efb49f8674108b86088a1cfaa86d0 git.kernel.org: https://git.kernel.org/stable/c/8f0ea4524dc71c6c9ec97f2711f46e12f624140f git.kernel.org: https://git.kernel.org/stable/c/602d4c5872b25ddd4d82fb2025efb9a05b187bb3 git.kernel.org: https://git.kernel.org/stable/c/5a3c6f76cab164a5d803084908d7050f649ab7f9 git.kernel.org: https://git.kernel.org/stable/c/4f317863a3ab212a027d8c8c3cc3af4e3fb95704