{"id":"CVE-2026-81017","revision":"dd8cea261ea24fb98844433abbedbe07","records":[{"revision":"dd8cea261ea24fb98844433abbedbe07","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-81017","aliases":[],"title":"platform/chrome: sensorhub: Bound the EC-reported sensor number","description":"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.","state":0,"publishedAt":"2026-09-11T19:43:05.409+00:00","modifiedAt":"2026-10-19T08:46:42.592+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/platform/chrome/cros_ec_sensorhub_ring.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"145d59baff5944b71551ac518d7fd7d377a9c820\",\n                            \"lessThan\": \"3a76b87e1d065183e2e7ae5b800cb1f6e84f543d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"145d59baff5944b71551ac518d7fd7d377a9c820\",\n                            \"lessThan\": \"2b602ecf6193ecb9720c78b6728d7e09370b1ff1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"145d59baff5944b71551ac518d7fd7d377a9c820\",\n                            \"lessThan\": \"324880f94ba3c6269a607e04f78a4dd4a66b3f53\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"145d59baff5944b71551ac518d7fd7d377a9c820\",\n                            \"lessThan\": \"d1b4add68dabfdd6481a4fa198bf3b473d2634d7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"145d59baff5944b71551ac518d7fd7d377a9c820\",\n                            \"lessThan\": \"3d2636dce0a8fe9eecad29010699847be425dc80\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"145d59baff5944b71551ac518d7fd7d377a9c820\",\n                            \"lessThan\": \"5eaf7faa99578ae090030d1e2e6ea3b37a615496\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"145d59baff5944b71551ac518d7fd7d377a9c820\",\n                            \"lessThan\": \"4d9bf63ed74f859c6698bc01d8fb216ef9253867\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"145d59baff5944b71551ac518d7fd7d377a9c820\",\n                            \"lessThan\": \"833740a2333c2e4db4e02e3d0ffba04e8718a5f3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/platform/chrome/cros_ec_sensorhub_ring.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.7\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.7\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.270\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.221\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.188\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.157\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.109\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.50\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.4\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.4,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/3a76b87e1d065183e2e7ae5b800cb1f6e84f543d","https://git.kernel.org/stable/c/2b602ecf6193ecb9720c78b6728d7e09370b1ff1","https://git.kernel.org/stable/c/324880f94ba3c6269a607e04f78a4dd4a66b3f53","https://git.kernel.org/stable/c/d1b4add68dabfdd6481a4fa198bf3b473d2634d7","https://git.kernel.org/stable/c/3d2636dce0a8fe9eecad29010699847be425dc80","https://git.kernel.org/stable/c/5eaf7faa99578ae090030d1e2e6ea3b37a615496","https://git.kernel.org/stable/c/4d9bf63ed74f859c6698bc01d8fb216ef9253867","https://git.kernel.org/stable/c/833740a2333c2e4db4e02e3d0ffba04e8718a5f3"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-81017","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-81017","identifiers":["CVE-2026-81017"]},"retained":false,"historicalAffected":[]}],"coverage":[]}