{"id":"CVE-2026-97423","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ncxl/region: Validate partition index before array access\n\nconstruct_region() reads cxled->part and uses it to index\ncxlds->part[] without checking for a negative value.…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ncxl/region: Validate partition index before array access\n\nconstruct_region() reads cxled->part and uses it to index\ncxlds->part[] without checking for a negative value.…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 06322da06116f1ee52271dd4d84dc69580087df7","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 16329b510f76e5b824e05bf8add8b29850f1f16f","Linux < 6.18.53","Linux (all versions)"],"published":"2026-09-24","updated":"2026-09-24","sourceUpdated":"2026-09-24T17:17:20.227","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-97423","references":[{"url":"https://git.kernel.org/stable/c/06322da06116f1ee52271dd4d84dc69580087df7","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/16329b510f76e5b824e05bf8add8b29850f1f16f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-24T16:47:15.884Z","slug":"CVE-2026-97423","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ncxl/region: Validate partition index before array access\n\nconstruct_region() reads cxled->part and uses it to index\ncxlds->part[] without checking for a negative value. If the\npartition was never resolved, part remains at its initial value\nof -1, causing an out-of-bounds array access.\n\nAdd a guard to return -EBUSY when part is negative.\n\nThe check was dropped during a merge.\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":[]}