{"id":"CVE-2026-63844","title":"drm/amdgpu/jpeg: set no_user_fence for JPEG v4.0.3 ring","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/jpeg: set no_user_fence for JPEG v4.0.3 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 >= e684e654eba9481a9f462a7bbf5c385b7d1c076e < b884ff67d62ef514eee9d5f605c03101c8b6bc98","Linux >= e684e654eba9481a9f462a7bbf5c385b7d1c076e < d6bd2a5fd611ec9c8a2411f084cff2435c709608","Linux >= e684e654eba9481a9f462a7bbf5c385b7d1c076e < 8549b3933038e68dc61cb934b9a54223dd244a78","Linux >= e684e654eba9481a9f462a7bbf5c385b7d1c076e < 249fa7549736de1c8e327d7ca6b32fa148a40bd6","Linux >= e684e654eba9481a9f462a7bbf5c385b7d1c076e < 83e37c0987ca92f9e87789b46dd311dcf5a4a6c8","Linux 6.5"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T15:31:50.488379Z"},"published":"2026-07-19","updated":"2026-10-16","sourceUpdated":"2026-10-16T15:42:06.578Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-63844","references":[{"url":"https://git.kernel.org/stable/c/b884ff67d62ef514eee9d5f605c03101c8b6bc98"},{"url":"https://git.kernel.org/stable/c/d6bd2a5fd611ec9c8a2411f084cff2435c709608"},{"url":"https://git.kernel.org/stable/c/8549b3933038e68dc61cb934b9a54223dd244a78"},{"url":"https://git.kernel.org/stable/c/249fa7549736de1c8e327d7ca6b32fa148a40bd6"},{"url":"https://git.kernel.org/stable/c/83e37c0987ca92f9e87789b46dd311dcf5a4a6c8"}],"tags":["cve.org"],"epss":0.00175,"epssPercentile":0.06539,"ingestedAt":"2026-10-16T17:24:46.757Z","slug":"CVE-2026-63844","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/jpeg: set no_user_fence for JPEG v4.0.3 ring\n\nJPEG rings do not support 64-bit user fence writes, reject CS\nsubmissions with user fences.\n\n(cherry picked from commit 2f6afc97d259d530f4f86c7743efbc573a8da927)\n\n## Affected\n\n- `Linux >= e684e654eba9481a9f462a7bbf5c385b7d1c076e < b884ff67d62ef514eee9d5f605c03101c8b6bc98`\n- `Linux >= e684e654eba9481a9f462a7bbf5c385b7d1c076e < d6bd2a5fd611ec9c8a2411f084cff2435c709608`\n- `Linux >= e684e654eba9481a9f462a7bbf5c385b7d1c076e < 8549b3933038e68dc61cb934b9a54223dd244a78`\n- `Linux >= e684e654eba9481a9f462a7bbf5c385b7d1c076e < 249fa7549736de1c8e327d7ca6b32fa148a40bd6`\n- `Linux >= e684e654eba9481a9f462a7bbf5c385b7d1c076e < 83e37c0987ca92f9e87789b46dd311dcf5a4a6c8`\n- `Linux 6.5`\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":[]}