CVE-2026-46225

System interruption via premature rspi resource release

Published May 28, 2026 · Updated May 28, 2026

Resource-lifetime error in the Linux Kernel rspi driver allows local users to interrupt the system during driver unbind. During rspi_remove(), device-managed controller registration leaves the controller registered when rspi_release_dma() releases DMA resources that it can still use. Triggering the flaw requires local access and an rspi driver unbind; the published impact is limited to availability.

CVSS severity5.5
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource-lifetime error in the Linux Kernel rspi driver allows local users to interrupt the system during driver unbind. During rspi_remove(), device-managed controller registration leaves the controller registered when rspi_release_dma() releases DMA resources that it can still use. Triggering the flaw requires local access and an rspi driver unbind; the published impact is limited to availability.

The record

CVE
CVE-2026-46225
Published
May 28, 2026
Updated
May 28, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 28, 2026CVE publishedPublication date reported by the CVE source.
  2. May 28, 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=3.14
  2. Affected versionversion=9e03d05eee4ca45ed12749ef6c26bf616262cdd2 <77defd64b405b680db73d767313fce770d368368
  3. Affected versionversion=9e03d05eee4ca45ed12749ef6c26bf616262cdd2 <9944fa6726afb1e6eb7e2212764e7da0c97f2dcc
  4. Affected versionversion=9e03d05eee4ca45ed12749ef6c26bf616262cdd2 <aee76c1dd189562c6678313caec12761f78a9ef3
  5. Affected versionversion=9e03d05eee4ca45ed12749ef6c26bf616262cdd2 <c5090db1b31de3ef4db0cda7e822ab49cb572292
  6. Affected versionversion=9e03d05eee4ca45ed12749ef6c26bf616262cdd2 <fee6abd9845c3edd217b0e429d09f764f9a5690e

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=3.14; version=9e03d05eee4ca45ed12749ef6c26bf616262cdd2 <77defd64b405b680db73d767313fce770d368368; version=9e03d05eee4ca45ed12749ef6c26bf616262cdd2 <9944fa6726afb1e6eb7e2212764e7da0c97f2dcc; version=9e03d05eee4ca45ed12749ef6c26bf616262cdd2 <aee76c1dd189562c6678313caec12761f78a9ef3; version=9e03d05eee4ca45ed12749ef6c26bf616262cdd2 <c5090db1b31de3ef4db0cda7e822ab49cb572292; version=9e03d05eee4ca45ed12749ef6c26bf616262cdd2 <fee6abd9845c3edd217b0e429d09f764f9a5690e

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.

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

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

T1499Endpoint Denial of Service

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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