CVE-2026-90395

Stale-state access via unsynchronized driver teardown

Published Sep 17, 2026 · Updated Sep 17, 2026

A teardown race in Linux's isp1704_charger driver allows local users to access stale power-supply state via driver removal. The isp1704_charger_remove function tears down the power supply without waiting for work scheduled by USB notifications or initial VBUS detection, leaving that work accessing removed state. Exposure requires an active driver on supported ISP170x hardware and work overlapping privileged local removal; public sources do not establish a specific crash or privilege-escalation outcome.

CVSS severity1.9
Low
EPSS probability0.18%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

A teardown race in Linux's isp1704_charger driver allows local users to access stale power-supply state via driver removal. The isp1704_charger_remove function tears down the power supply without waiting for work scheduled by USB notifications or initial VBUS detection, leaving that work accessing removed state. Exposure requires an active driver on supported ISP170x hardware and work overlapping privileged local removal; public sources do not establish a specific crash or privilege-escalation outcome.

The record

CVE
CVE-2026-90395
Published
Sep 17, 2026
Updated
Sep 17, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Sep 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.6.37
  2. Affected versionversion=ec46475f3e3163dd80bfee086fa71b36455ecc0b <1ed74e3a8bbc104b744c257f8cbb2c371485ba4f
  3. Affected versionversion=ec46475f3e3163dd80bfee086fa71b36455ecc0b <60c5b8a9ef4dbc5d69bbc1a960fe55826cb3b643
  4. Affected versionversion=ec46475f3e3163dd80bfee086fa71b36455ecc0b <a4750d5d7d1a3bac1b23ac5817f2bfbedcc95ac7
  5. Affected versionversion=ec46475f3e3163dd80bfee086fa71b36455ecc0b <ad4f4e6678ecd4f6de97b73d4bab7d2352d40d70
  6. Affected versionversion=ec46475f3e3163dd80bfee086fa71b36455ecc0b <b0fa49bcb25b905b49dbb681c8a94f00d1a7f94d
  7. Affected versionversion=ec46475f3e3163dd80bfee086fa71b36455ecc0b <c22a9a539c76179fca5c0f28ee7652c4afda750b
  8. Affected versionversion=ec46475f3e3163dd80bfee086fa71b36455ecc0b <cb442f1823df5782002ab4c36a8775270d41a772
  9. Affected versionversion=ec46475f3e3163dd80bfee086fa71b36455ecc0b <f312c5d17f2a7ad50df5b52935d76abbe7b89feb

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

The Linux Kernel Organization · Linuxversion=2.6.37; version=ec46475f3e3163dd80bfee086fa71b36455ecc0b <1ed74e3a8bbc104b744c257f8cbb2c371485ba4f; version=ec46475f3e3163dd80bfee086fa71b36455ecc0b <60c5b8a9ef4dbc5d69bbc1a960fe55826cb3b643; version=ec46475f3e3163dd80bfee086fa71b36455ecc0b <a4750d5d7d1a3bac1b23ac5817f2bfbedcc95ac7; version=ec46475f3e3163dd80bfee086fa71b36455ecc0b <ad4f4e6678ecd4f6de97b73d4bab7d2352d40d70; version=ec46475f3e3163dd80bfee086fa71b36455ecc0b <b0fa49bcb25b905b49dbb681c8a94f00d1a7f94d; version=ec46475f3e3163dd80bfee086fa71b36455ecc0b <c22a9a539c76179fca5c0f28ee7652c4afda750b; version=ec46475f3e3163dd80bfee086fa71b36455ecc0b <cb442f1823df5782002ab4c36a8775270d41a772; version=ec46475f3e3163dd80bfee086fa71b36455ecc0b <f312c5d17f2a7ad50df5b52935d76abbe7b89feb

Published CVSS scores

1.9SUSECVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L
1.9Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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