{"id":"CVE-2026-90245","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: kyro: Validate overlay viewport coordinates\n\nThe overlay viewport end coordinates are computed from the viewport\norigin and dimensions using 32-bit unsigned arit…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: kyro: Validate overlay viewport coordinates\n\nThe overlay viewport end coordinates are computed from the viewport\norigin and dimensions using 32-bit unsigned arit…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < d8c1a9579cbd8f4ac5cbd5a10f1afb5ee64adf30","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 2ac6e30a552e6f9932c21c865a5c69f40c8aef64","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 413d763439ba68e5d547538e6b6c7de97d5818a5","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e8d4e4cf388daeb49704f3de10b203034f28eb90","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a6decd4e72fc5846d3b268bd085a2089213fd5ee","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 33e54e3e0b2ca959304e62c3d84f0ad49bbe1afe","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 7bf36dc23bcf3496dec274a46ae0aaff4961ea03","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 7b5c7bc55e13e7f5ac7b1eaf5c6d690389ea5ee3","Linux 2.6.12"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:20.530","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90245","references":[{"url":"https://git.kernel.org/stable/c/2ac6e30a552e6f9932c21c865a5c69f40c8aef64","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/33e54e3e0b2ca959304e62c3d84f0ad49bbe1afe","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/413d763439ba68e5d547538e6b6c7de97d5818a5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7b5c7bc55e13e7f5ac7b1eaf5c6d690389ea5ee3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7bf36dc23bcf3496dec274a46ae0aaff4961ea03","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a6decd4e72fc5846d3b268bd085a2089213fd5ee","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d8c1a9579cbd8f4ac5cbd5a10f1afb5ee64adf30","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e8d4e4cf388daeb49704f3de10b203034f28eb90","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-17T16:21:47.845Z","epss":0.00211,"epssPercentile":0.11611,"slug":"CVE-2026-90245","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: kyro: Validate overlay viewport coordinates\n\nThe overlay viewport end coordinates are computed from the viewport\norigin and dimensions using 32-bit unsigned arithmetic. Large input\nvalues can cause these calculations to wrap around before the resulting\ncoordinates are passed to SetOverlayViewPort().\n\nSetOverlayViewPort() packs the viewport coordinates into 16-bit\nregister fields. The X coordinates are additionally adjusted by +2\nand +1 before being written. Validate the coordinate calculations\nfor 32-bit wraparound and ensure that the adjusted coordinates fit\nwithin their 16-bit register fields before calling\nSetOverlayViewPort().\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.\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":[]}