CVE-2026-81017
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine without logging in. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 8.4 HIGH (CVSS).
- Fix: none linked yet, which raises it.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Record status
- Received
Attack profile CVSS 3.1 · 8.4
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-81017.md and follow it. Check whether this project is affected by CVE-2026-81017. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
References
- https://git.kernel.org/stable/c/2b602ecf6193ecb9720c78b6728d7e09370b1ff1
- https://git.kernel.org/stable/c/324880f94ba3c6269a607e04f78a4dd4a66b3f53
- https://git.kernel.org/stable/c/3a76b87e1d065183e2e7ae5b800cb1f6e84f543d
- https://git.kernel.org/stable/c/3d2636dce0a8fe9eecad29010699847be425dc80
- https://git.kernel.org/stable/c/4d9bf63ed74f859c6698bc01d8fb216ef9253867
- https://git.kernel.org/stable/c/5eaf7faa99578ae090030d1e2e6ea3b37a615496
- https://git.kernel.org/stable/c/833740a2333c2e4db4e02e3d0ffba04e8718a5f3
- https://git.kernel.org/stable/c/d1b4add68dabfdd6481a4fa198bf3b473d2634d7