CVEvulnerability
CVE-2026-63856
7.8 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-07-19
- Last modified
- 2026-10-26
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-20
Description
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu/vcn: set no_user_fence for VCN v2.0 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 e2b5499fca55f1a32960a311bbb62e35891eaf73)
Affected configurations
• linux linux kernel (>= 5.3 < 6.6.141)
• linux linux kernel (>= 6.7 < 6.12.91)
• linux linux kernel (>= 6.13 < 6.18.33)
• linux linux kernel (>= 6.19 < 7.0.10)
• linux linux kernel 7.1
Related
Weakness · CWE (1)
- CWE-20 Improper Input Validation weakness
References
- https://git.kernel.org/stable/c/5e777bc4cbe928ac0fd95e368fee1540f2ce4db2 Patch
- https://git.kernel.org/stable/c/8d80b293b41fcb5e9396db93e788b0f4ebcbafb7 Patch
- https://git.kernel.org/stable/c/ac06ce5cac9e711281585d09d00c6efcd9b86396 Patch
- https://git.kernel.org/stable/c/c71aecae98e42dcf2baf462df50b3a2cf1a93fe4 Patch
- https://git.kernel.org/stable/c/f264019be80de79f84f464846451445923bffea0 Patch