{"id":"CVE-2026-43195","title":"drm/amdgpu: validate user queue size constraints","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: validate user queue size constraints\n\nAdd validation to ensure user queue sizes meet hardware requirements:\n- Size must be a power of two for efficient ring…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= fbf136b932358da1c65eb6fedd064a33a7a96aaa < cf2a37be899dc1b01f53bf1d0157330eaf3e3f55","Linux >= fbf136b932358da1c65eb6fedd064a33a7a96aaa < 9f6cc309cd15922fe58cab2dfa1b5993ad31dec7","Linux >= fbf136b932358da1c65eb6fedd064a33a7a96aaa < 8079b87c02e531cc91601f72ea8336dd2262fdf1","Linux 6.16"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-06T15:30:38.768325Z"},"published":"2026-05-06","updated":"2026-11-06","sourceUpdated":"2026-11-06T15:32:36.037Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-43195","references":[{"url":"https://git.kernel.org/stable/c/cf2a37be899dc1b01f53bf1d0157330eaf3e3f55"},{"url":"https://git.kernel.org/stable/c/9f6cc309cd15922fe58cab2dfa1b5993ad31dec7"},{"url":"https://git.kernel.org/stable/c/8079b87c02e531cc91601f72ea8336dd2262fdf1"}],"tags":["cve.org"],"epss":0.00126,"epssPercentile":0.02324,"ingestedAt":"2026-11-06T15:54:04.008Z","slug":"CVE-2026-43195","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: validate user queue size constraints\n\nAdd validation to ensure user queue sizes meet hardware requirements:\n- Size must be a power of two for efficient ring buffer wrapping\n- Size must be at least AMDGPU_GPU_PAGE_SIZE to prevent undersized allocations\n\nThis prevents invalid configurations that could lead to GPU faults or\nunexpected behavior.\n\n## Affected\n\n- `Linux >= fbf136b932358da1c65eb6fedd064a33a7a96aaa < cf2a37be899dc1b01f53bf1d0157330eaf3e3f55`\n- `Linux >= fbf136b932358da1c65eb6fedd064a33a7a96aaa < 9f6cc309cd15922fe58cab2dfa1b5993ad31dec7`\n- `Linux >= fbf136b932358da1c65eb6fedd064a33a7a96aaa < 8079b87c02e531cc91601f72ea8336dd2262fdf1`\n- `Linux 6.16`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}