CVE-2026-63851
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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)
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 547aad32edac17a3ec4989d8aad2426d0cbeb590 < 75091030f07b7957cc0646cd52e2d9d15f611483 | affected |
| Linux | Linux | 547aad32edac17a3ec4989d8aad2426d0cbeb590 < 6d9a98c5ed65ba92a09e4ca5a5f6941448145529 | affected |
| Linux | Linux | 547aad32edac17a3ec4989d8aad2426d0cbeb590 < 7f23b5c420b9f68a210c29c5123bace670aa8cc9 | affected |
| Linux | Linux | 547aad32edac17a3ec4989d8aad2426d0cbeb590 < 589a254bf3e88204c8402b9cbccd5e23a0af990f | affected |
| Linux | Linux | 6.7 | affected |
| Linux | Linux | 0 < 6.7 | unaffected |
| Linux | Linux | 6.12.91 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.33 <= 6.18.* | unaffected |
| Linux | Linux | 7.0.10 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
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
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