CVE-2026-43177

Service interruption via probe-path runtime PM leak

Published May 6, 2026 · Updated May 6, 2026

Resource leak in the Linux Kernel IPU6 PCI driver 6.10 and later allows local users to interrupt service after device probe failures. The ipu6_pci_probe() error branches jump to out_ipu6_bus_del_devices without balancing an acquired runtime PM reference, retaining the reference during cleanup. Reachability requires an Intel IPU6 PCI device and a failing probe path; published material does not identify a user-controlled trigger or whether interruption means a hang, crash, or lost power management.

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

Resource leak in the Linux Kernel IPU6 PCI driver 6.10 and later allows local users to interrupt service after device probe failures. The ipu6_pci_probe() error branches jump to out_ipu6_bus_del_devices without balancing an acquired runtime PM reference, retaining the reference during cleanup. Reachability requires an Intel IPU6 PCI device and a failing probe path; published material does not identify a user-controlled trigger or whether interruption means a hang, crash, or lost power management.

The record

CVE
CVE-2026-43177
Published
May 6, 2026
Updated
May 6, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
Unavailable
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=25fedc021985a66a357a599ab771d6b495b6f78c <364759ccc3fb49754758c585c530407f96683030
  2. Affected versionversion=25fedc021985a66a357a599ab771d6b495b6f78c <3cd9e7539a3010a83391fecade1186cf30e616c9
  3. Affected versionversion=25fedc021985a66a357a599ab771d6b495b6f78c <6099f78e4c9223f4de4169d2fd1cded01279da1a
  4. Affected versionversion=25fedc021985a66a357a599ab771d6b495b6f78c <fdc06d36dab7b28c2bdd16cb7ee4f25e0f55d9ac
  5. Affected versionversion=6.10

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=25fedc021985a66a357a599ab771d6b495b6f78c <364759ccc3fb49754758c585c530407f96683030; version=25fedc021985a66a357a599ab771d6b495b6f78c <3cd9e7539a3010a83391fecade1186cf30e616c9; version=25fedc021985a66a357a599ab771d6b495b6f78c <6099f78e4c9223f4de4169d2fd1cded01279da1a; version=25fedc021985a66a357a599ab771d6b495b6f78c <fdc06d36dab7b28c2bdd16cb7ee4f25e0f55d9ac; version=6.10

Published CVSS scores

5.5SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5Oracle LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5NIST National Vulnerability DatabaseCVSS: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

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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