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CVE-2026-63856

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

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected 1b61de45dfaff00b627e47349a019658e39268b9 before f264019be80de79f84f464846451445923bffea0; affected 1b61de45dfaff00b627e47349a019658e39268b9 before 5e777bc4cbe928ac0fd95e368fee1540f2ce4db2; affected 1b61de45dfaff00b627e47349a019658e39268b9 before ac06ce5cac9e711281585d09d00c6efcd9b86396; affected 1b61de45dfaff00b627e47349a019658e39268b9 before c71aecae98e42dcf2baf462df50b3a2cf1a93fe4; affected 1b61de45dfaff00b627e47349a019658e39268b9 before 8d80b293b41fcb5e9396db93e788b0f4ebcbafb7
Linux / Linuxaffected 5.3; unaffected 0 before 5.3; unaffected 6.6.141 through 6.6.*; unaffected 6.12.91 through 6.12.*; unaffected 6.18.33 through 6.18.*; unaffected 7.0.10 through 7.0.*; unaffected 7.1 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.