CVE-2026-43170

Local kernel panic via atomic-context PMIC call

Published May 6, 2026 · Updated May 6, 2026

Denial of service in affected Linux kernel releases allows local users to trigger a kernel panic through DWC3 gadget VBUS handling. The dwc3_gadget_vbus_draw() path can invoke sleep-capable power-supply and PMIC operations while running in atomic context, where sleeping is invalid. Exploitation requires local low-privileged access and an active DWC3 gadget path; the bounded consequence is a system-wide crash.

CVSS severity5.5
Medium
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in affected Linux kernel releases allows local users to trigger a kernel panic through DWC3 gadget VBUS handling. The dwc3_gadget_vbus_draw() path can invoke sleep-capable power-supply and PMIC operations while running in atomic context, where sleeping is invalid. Exploitation requires local low-privileged access and an active DWC3 gadget path; the bounded consequence is a system-wide crash.

The record

CVE
CVE-2026-43170
Published
May 6, 2026
Updated
May 6, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 6, 2026CVE publishedPublication date reported by the CVE source.
  2. May 6, 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=5.13
  2. Affected versionversion=99288de36020c5a6976df77e53ac449b0f75c97f <2333653ef854c2cc124077f71a8526f03bf6e06a
  3. Affected versionversion=99288de36020c5a6976df77e53ac449b0f75c97f <54aaa3b387c2f580a99dc86a9cc2eb6dfaf599a7
  4. Affected versionversion=99288de36020c5a6976df77e53ac449b0f75c97f <74a231e3d99d310497ab0ccb359539a6063b316a
  5. Affected versionversion=99288de36020c5a6976df77e53ac449b0f75c97f <76c1123ffccfaba95cf4ecc2a50f95504a522424
  6. Affected versionversion=99288de36020c5a6976df77e53ac449b0f75c97f <a7a80c25b65112768eeba58a7af129d3c52a6d90

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=5.13; version=99288de36020c5a6976df77e53ac449b0f75c97f <2333653ef854c2cc124077f71a8526f03bf6e06a; version=99288de36020c5a6976df77e53ac449b0f75c97f <54aaa3b387c2f580a99dc86a9cc2eb6dfaf599a7; version=99288de36020c5a6976df77e53ac449b0f75c97f <74a231e3d99d310497ab0ccb359539a6063b316a; version=99288de36020c5a6976df77e53ac449b0f75c97f <76c1123ffccfaba95cf4ecc2a50f95504a522424; version=99288de36020c5a6976df77e53ac449b0f75c97f <a7a80c25b65112768eeba58a7af129d3c52a6d90

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Application or System Exploitation

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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