CVE-2026-63856 | BDVDB-2026-349549 Detail
LinuxLinux
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)
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: local.
Weaknesses#
- CWE-20 Improper Input Validation
References#
- https://git.kernel.org/stable/c/bcb972496f189edbf56a18b14f9b4831fd127ab8
- https://git.kernel.org/stable/c/f264019be80de79f84f464846451445923bffea0
- https://git.kernel.org/stable/c/5e777bc4cbe928ac0fd95e368fee1540f2ce4db2
- https://git.kernel.org/stable/c/ac06ce5cac9e711281585d09d00c6efcd9b86396
- https://git.kernel.org/stable/c/c71aecae98e42dcf2baf462df50b3a2cf1a93fe4
- https://git.kernel.org/stable/c/8d80b293b41fcb5e9396db93e788b0f4ebcbafb7
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.