platform/chrome: sensorhub: Bound the EC-reported sensor number

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-81017
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-11 20:19:10 UTC
Updated2026-09-11 20:19:10 UTC
DescriptionIn 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.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 145d59baff5944b71551ac518d7fd7d377a9c820 3d2636dce0a8fe9eecad29010699847be425dc80 git Not specified
CNA Linux Linux affected 145d59baff5944b71551ac518d7fd7d377a9c820 5eaf7faa99578ae090030d1e2e6ea3b37a615496 git Not specified
CNA Linux Linux affected 145d59baff5944b71551ac518d7fd7d377a9c820 4d9bf63ed74f859c6698bc01d8fb216ef9253867 git Not specified
CNA Linux Linux affected 145d59baff5944b71551ac518d7fd7d377a9c820 833740a2333c2e4db4e02e3d0ffba04e8718a5f3 git Not specified
CNA Linux Linux affected 5.7 Not specified
CNA Linux Linux unaffected 5.7 semver Not specified
CNA Linux Linux unaffected 6.12.109 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.50 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.4 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/3d2636dce0a8fe9eecad29010699847be425dc80 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/833740a2333c2e4db4e02e3d0ffba04e8718a5f3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/5eaf7faa99578ae090030d1e2e6ea3b37a615496 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/4d9bf63ed74f859c6698bc01d8fb216ef9253867 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report