{"id":"CVE-2026-63840","title":"drm/amdgpu/jpeg: set no_user_fence for JPEG v5.3.0 ring","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/jpeg: set no_user_fence for JPEG v5.3.0 ring\n\nJPEG rings do not support 64-bit user fence writes, reject CS\nsubmissions with user fences.\n\n(cherry picked fro…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 4aeaf3cbfa9f967e71849c66c6914ab6c2054581 < 46ad73aec27d020f103b4262e4da2d2c22f54799","Linux >= 4aeaf3cbfa9f967e71849c66c6914ab6c2054581 < 3b0ea2021351b6b813b34fac940957f1f4fad85b","Linux 7.0"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T15:31:32.881224Z"},"published":"2026-07-19","updated":"2026-10-16","sourceUpdated":"2026-10-16T15:42:05.972Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-63840","references":[{"url":"https://git.kernel.org/stable/c/46ad73aec27d020f103b4262e4da2d2c22f54799"},{"url":"https://git.kernel.org/stable/c/3b0ea2021351b6b813b34fac940957f1f4fad85b"}],"tags":["cve.org"],"epss":0.00165,"epssPercentile":0.05341,"ingestedAt":"2026-10-16T17:24:46.756Z","slug":"CVE-2026-63840","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/jpeg: set no_user_fence for JPEG v5.3.0 ring\n\nJPEG rings do not support 64-bit user fence writes, reject CS\nsubmissions with user fences.\n\n(cherry picked from commit 86ac011ae234c03fb872f4945913391ea1d8862e)\n\n## Affected\n\n- `Linux >= 4aeaf3cbfa9f967e71849c66c6914ab6c2054581 < 46ad73aec27d020f103b4262e4da2d2c22f54799`\n- `Linux >= 4aeaf3cbfa9f967e71849c66c6914ab6c2054581 < 3b0ea2021351b6b813b34fac940957f1f4fad85b`\n- `Linux 7.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}