power: supply: cros_usbpd: Limit port counts to EC_USB_PD_MAX_PORTS

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-89470
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-11 20:19:28 UTC
Updated2026-09-14 13:19:03 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: power: supply: cros_usbpd: Limit port counts to EC_USB_PD_MAX_PORTS Currently the cros_usbpd-charger driver probe iterates based on raw charger port count returned by the embedded controller. The only check is against the number of USB PD ports which the embedded controller also defines. A malicious embedded controller could return an inaccurate port count (up to 255) resulting in an out of bounds write and subsequent memory corruption. Update helper functions in cros_usbpd-charger to limit port counts to EC_USB_PD_MAX_PORTS.

Risk And Classification

Primary CVSS: v3.1 8.4 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.001440000 probability, percentile 0.039880000 (date 2026-09-14)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary8.4HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED8.4HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 3af15cfacd1eef7f223802d49a88cae23c509183 e951b65ef1699439079b723ca5c72cbe44771647 git Not specified
CNA Linux Linux affected 3af15cfacd1eef7f223802d49a88cae23c509183 3ce9218639ff62d011eb8aca0943aa670a654c7b git Not specified
CNA Linux Linux affected 3af15cfacd1eef7f223802d49a88cae23c509183 dce1750ddbd3380b1f6090dda2b07d2ebea2261d git Not specified
CNA Linux Linux affected 3af15cfacd1eef7f223802d49a88cae23c509183 3262977a05b23d1be9fc86727a2b490ec997543e git Not specified
CNA Linux Linux affected 3af15cfacd1eef7f223802d49a88cae23c509183 fd5f289cca04ad869b34fc9ccb647670bfdb60ac git Not specified
CNA Linux Linux affected 3af15cfacd1eef7f223802d49a88cae23c509183 4b1f2be1e1b74a50386ba718de3d62bfcf5ee701 git Not specified
CNA Linux Linux affected 3af15cfacd1eef7f223802d49a88cae23c509183 304a29ac55ba3ee6eceaf7d83d09cd9709f3bf60 git Not specified
CNA Linux Linux affected 3af15cfacd1eef7f223802d49a88cae23c509183 657cd3a42e937276262c0a8ae6b01a87004309de git Not specified
CNA Linux Linux affected 4.20 Not specified
CNA Linux Linux unaffected 4.20 semver Not specified
CNA Linux Linux unaffected 5.10.270 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.221 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.188 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.157 6.6.* 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/e951b65ef1699439079b723ca5c72cbe44771647 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/3262977a05b23d1be9fc86727a2b490ec997543e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/3ce9218639ff62d011eb8aca0943aa670a654c7b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/304a29ac55ba3ee6eceaf7d83d09cd9709f3bf60 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/fd5f289cca04ad869b34fc9ccb647670bfdb60ac 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/dce1750ddbd3380b1f6090dda2b07d2ebea2261d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/4b1f2be1e1b74a50386ba718de3d62bfcf5ee701 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/657cd3a42e937276262c0a8ae6b01a87004309de 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