CVE-2026-63852
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 v4.0.3 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 ff1a5a125c5a70c328806b9bc01d7d942cf3f9aa)
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | b889ef4ac98837838c38f7b9f72bba2f33ee367d < c12a5d35033c0640c57c10d7111c010c7b9c2c8e | affected |
| Linux | Linux | b889ef4ac98837838c38f7b9f72bba2f33ee367d < 387b7c7667bd5c53549350ddad866d2fcf75a529 | affected |
| Linux | Linux | b889ef4ac98837838c38f7b9f72bba2f33ee367d < 9076a83e5adefd10dc5c967c7b8bde601c4c512a | affected |
| Linux | Linux | b889ef4ac98837838c38f7b9f72bba2f33ee367d < 0177ac6141c8857130cf365369c74dee7b6b1f7f | affected |
| Linux | Linux | b889ef4ac98837838c38f7b9f72bba2f33ee367d < 4532b52b34e4e4310386e6fdf6a643368599f522 | affected |
| Linux | Linux | 6.5 | affected |
| Linux | Linux | 0 < 6.5 | unaffected |
| Linux | Linux | 6.6.141 <= 6.6.* | 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/c12a5d35033c0640c57c10d7111c010c7b9c2c8e
- https://git.kernel.org/stable/c/387b7c7667bd5c53549350ddad866d2fcf75a529
- https://git.kernel.org/stable/c/9076a83e5adefd10dc5c967c7b8bde601c4c512a
- https://git.kernel.org/stable/c/0177ac6141c8857130cf365369c74dee7b6b1f7f
- https://git.kernel.org/stable/c/4532b52b34e4e4310386e6fdf6a643368599f522
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