{"id":"CVE-2026-81017","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-81017","summary":"platform/chrome: sensorhub: Bound the EC-reported sensor number","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/chrome: sensorhub: Bound the EC-reported sensor number\n\nEach EC FIFO event carries an 8-bit sensor number (in->sensor_num).\ncros_ec_sensorhub_ring_handler() validates the FIFO event count, the\nper-read count and the ring bound, but not the sensor number, which\ncros_ec_sensor_ring_process_event() then uses unchecked to index\nsensorhub->batch_state[] - allocated with only sensorhub->sensor_num\nentries. A sensor number of sensor_num or larger is an out-of-bounds\nread and write of batch_state[].\n\nValidate the sensor number in the ring handler, where each event is read\nfrom the EC, and drop a malformed event before it is used.","published":"2026-09-11T19:43:05.409Z","modified":"2026-09-14T03:46:01.413021326Z","cvss":{"score":8.4,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"6.12.109"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/3d2636dce0a8fe9eecad29010699847be425dc80"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4d9bf63ed74f859c6698bc01d8fb216ef9253867"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5eaf7faa99578ae090030d1e2e6ea3b37a615496"},{"type":"WEB","url":"https://git.kernel.org/stable/c/833740a2333c2e4db4e02e3d0ffba04e8718a5f3"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81017.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-81017"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-14T03:46:01.413021326Z"}}