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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-63856

drm/amdgpu/vcn: set no_user_fence for VCN v2.0 enc/dec rings

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 1b61de45dfaff00b627e47349a019658e39268b9 to < bcb972496f189edbf56a18b14f9b4831fd127ab8affected
  • 1b61de45dfaff00b627e47349a019658e39268b9 to < f264019be80de79f84f464846451445923bffea0affected
  • 1b61de45dfaff00b627e47349a019658e39268b9 to < 5e777bc4cbe928ac0fd95e368fee1540f2ce4db2affected
  • 1b61de45dfaff00b627e47349a019658e39268b9 to < ac06ce5cac9e711281585d09d00c6efcd9b86396affected
  • 1b61de45dfaff00b627e47349a019658e39268b9 to < c71aecae98e42dcf2baf462df50b3a2cf1a93fe4affected
  • 1b61de45dfaff00b627e47349a019658e39268b9 to < 8d80b293b41fcb5e9396db93e788b0f4ebcbafb7affected

Linux Linux

Default version status: affected

  • 5.3affected
  • 0 to < 5.3unaffected
  • 6.1.191 to ≤ 6.1.*unaffected
  • 6.6.141 to ≤ 6.6.*unaffected
  • 6.12.91 to ≤ 6.12.*unaffected
  • 6.18.33 to ≤ 6.18.*unaffected
  • 7.0.10 to ≤ 7.0.*unaffected
  • 7.1 to ≤ *unaffected

References