CVE-2026-81017

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Source
https://cve.org/CVERecord?id=CVE-2026-81017
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-81017.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-81017
Downstream
Published
2026-09-11T19:43:05Z
Modified
2026-09-16T03:30:18Z
Severity
  • 8.4 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
platform/chrome: sensorhub: Bound the EC-reported sensor number
Details

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.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81017.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
145d59baff5944b71551ac518d7fd7d377a9c820
Fixed
3a76b87e1d065183e2e7ae5b800cb1f6e84f543d
Fixed
2b602ecf6193ecb9720c78b6728d7e09370b1ff1
Fixed
324880f94ba3c6269a607e04f78a4dd4a66b3f53
Fixed
d1b4add68dabfdd6481a4fa198bf3b473d2634d7
Fixed
3d2636dce0a8fe9eecad29010699847be425dc80
Fixed
5eaf7faa99578ae090030d1e2e6ea3b37a615496
Fixed
4d9bf63ed74f859c6698bc01d8fb216ef9253867
Fixed
833740a2333c2e4db4e02e3d0ffba04e8718a5f3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-81017.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.7.0
Fixed
5.10.270
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.221
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.188
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.157
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.109
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.50
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.2.4

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-81017.json"