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CVE-2026-63855

drm/amdgpu/vcn: set no_user_fence for VCN v2.5 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 v2.5 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 efc9dd5590894109bce9a0bfe1fa5592dd6b20b1)

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 28c17d72072b7ce5cc13a527dcbfc045cc995e7d before 2c6fb056567efb49f8674108b86088a1cfaa86d0; affected 28c17d72072b7ce5cc13a527dcbfc045cc995e7d before 8f0ea4524dc71c6c9ec97f2711f46e12f624140f; affected 28c17d72072b7ce5cc13a527dcbfc045cc995e7d before 602d4c5872b25ddd4d82fb2025efb9a05b187bb3; affected 28c17d72072b7ce5cc13a527dcbfc045cc995e7d before 5a3c6f76cab164a5d803084908d7050f649ab7f9; affected 28c17d72072b7ce5cc13a527dcbfc045cc995e7d before 4f317863a3ab212a027d8c8c3cc3af4e3fb95704
Linux / Linuxaffected 5.4; unaffected 0 before 5.4; 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.