CVE-2026-81017platform/chrome: sensorhub: Bound the EC-reported sensor number
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: platform/chrome: sensorhub: Bound the EC-reported sensor number Each EC FIFO event carries an 8-bit sensor number (in->sensor_num). cros_ec_sensorhub_ring_handler() validates the FIFO event count, the per-read count and the ring bound, but not the sensor number, which cros_ec_sensor_ring_process_event() then uses unchecked to index sensorhub->batch_state[] - allocated with only sensorhub->sensor_num entries. A sensor number of sensor_num or larger is an out-of-bounds read and write of batch_state[]. Validate the sensor number in the ring handler, where each event is read from the EC, and drop a malformed event before it is used.
- CVSS
- 8.4 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 145d59baff5944b71551ac518d7fd7d377a9c820 builds before 3a76b87e1d065183e2e7ae5b800cb1f6e84f543d; 145d59baff5944b71551ac518d7fd7d377a9c820 builds before 2b602ecf6193ecb9720c78b6728d7e09370b1ff1; from 145d59baff5944b71551ac518d7fd7d377a9c820 before 324880f94ba3c6269a607e04f78a4dd4a66b3f53; from 145d59baff5944b71551ac518d7fd7d377a9c820 before d1b4add68dabfdd6481a4fa198bf3b473d2634d7; 145d59baff5944b71551ac518d7fd7d377a9c820 builds before 3d2636dce0a8fe9eecad29010699847be425dc80; 145d59baff5944b71551ac518d7fd7d377a9c820 builds before 5eaf7faa99578ae090030d1e2e6ea3b37a615496; 145d59baff5944b71551ac518d7fd7d377a9c820 builds before 4d9bf63ed74f859c6698bc01d8fb216ef9253867; from 145d59baff5944b71551ac518d7fd7d377a9c820 before 833740a2333c2e4db4e02e3d0ffba04e8718a5f3 | CNA record |
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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.