{"id":"CVE-2026-98893","title":"firmware: arm_scmi: Validate SENSOR_UPDATE payload size","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scmi: Validate SENSOR_UPDATE payload size\n\nSENSOR_UPDATE carries one or more sensor readings after the fixed\nnotification header. The parser derives the e…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e543d60f966a5f5c92298720c2fd1810f85a6be3","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 87a72e75f7560ea45cd28870194eaa153dd19e75","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 1bbe431fc59704d012660647516f6f94ddd82564","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < c148ff2f5a168e0bc41d801efca6ee35a376cfcb","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 767789a58ae0d65ec3028e5b5b4da82210355d00","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 32bc5496b48174dbca1f187f710955ee4d9527a1","Linux < 5.15.222","Linux < 6.1.189","Linux < 6.6.158","Linux < 6.12.111","Linux < 6.18.53","Linux (all versions)"],"published":"2026-10-23","updated":"2026-10-23","sourceUpdated":"2026-10-23T11:37:54.017Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98893","references":[{"url":"https://git.kernel.org/stable/c/e543d60f966a5f5c92298720c2fd1810f85a6be3"},{"url":"https://git.kernel.org/stable/c/87a72e75f7560ea45cd28870194eaa153dd19e75"},{"url":"https://git.kernel.org/stable/c/1bbe431fc59704d012660647516f6f94ddd82564"},{"url":"https://git.kernel.org/stable/c/c148ff2f5a168e0bc41d801efca6ee35a376cfcb"},{"url":"https://git.kernel.org/stable/c/767789a58ae0d65ec3028e5b5b4da82210355d00"},{"url":"https://git.kernel.org/stable/c/32bc5496b48174dbca1f187f710955ee4d9527a1"}],"tags":["cve.org"],"ingestedAt":"2026-10-23T13:24:55.577Z","slug":"CVE-2026-98893","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scmi: Validate SENSOR_UPDATE payload size\n\nSENSOR_UPDATE carries one or more sensor readings after the fixed\nnotification header. The parser derives the expected reading count\nfrom the sensor description, but it did not verify that the received\npayload contains those entries before parsing them.\n\nReject truncated update notifications before reading the variable\narray.\n\n## Affected\n\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e543d60f966a5f5c92298720c2fd1810f85a6be3`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 87a72e75f7560ea45cd28870194eaa153dd19e75`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 1bbe431fc59704d012660647516f6f94ddd82564`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < c148ff2f5a168e0bc41d801efca6ee35a376cfcb`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 767789a58ae0d65ec3028e5b5b4da82210355d00`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 32bc5496b48174dbca1f187f710955ee4d9527a1`\n- `Linux < 5.15.222`\n- `Linux < 6.1.189`\n- `Linux < 6.6.158`\n- `Linux < 6.12.111`\n- `Linux < 6.18.53`\n- `Linux (all versions)`\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":[]}