CVE-2026-46060

Local service interruption via premature MSI-X teardown

Published May 27, 2026 · Updated May 27, 2026

Improper cleanup in Linux Kernel 6.16 through 6.18.26 and 6.19 through 7.0.3 allows local users to interrupt service during QAT probe failure. In drivers/crypto/intel/qat/qat_6xxx/adf_drv.c, adf_probe() returns after partial adf_dev_up() failure without calling adf_dev_down(), so devres releases MSI-X vectors while registered IRQ handlers remain attached. The condition requires an Intel QAT 6xxx device and a partially completed probe; the stale handlers leave warning-producing IRQ state and interrupt affected host operation.

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

Improper cleanup in Linux Kernel 6.16 through 6.18.26 and 6.19 through 7.0.3 allows local users to interrupt service during QAT probe failure. In drivers/crypto/intel/qat/qat_6xxx/adf_drv.c, adf_probe() returns after partial adf_dev_up() failure without calling adf_dev_down(), so devres releases MSI-X vectors while registered IRQ handlers remain attached. The condition requires an Intel QAT 6xxx device and a partially completed probe; the stale handlers leave warning-producing IRQ state and interrupt affected host operation.

The record

CVE
CVE-2026-46060
Published
May 27, 2026
Updated
May 27, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 27, 2026CVE publishedPublication date reported by the CVE source.
  2. May 27, 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=17fd7514ae68c541bf952876ce2005cb4a53f283 <27f561bf894e46bdc2d6209c50884adad79d8277
  2. Affected versionversion=17fd7514ae68c541bf952876ce2005cb4a53f283 <7cd651f1357dcc477e6483c3a4706836b46bdc92
  3. Affected versionversion=17fd7514ae68c541bf952876ce2005cb4a53f283 <95aed2af87ec43fa7624cc81dd13d37824ad4972
  4. Affected versionversion=6.16

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=17fd7514ae68c541bf952876ce2005cb4a53f283 <27f561bf894e46bdc2d6209c50884adad79d8277; version=17fd7514ae68c541bf952876ce2005cb4a53f283 <7cd651f1357dcc477e6483c3a4706836b46bdc92; version=17fd7514ae68c541bf952876ce2005cb4a53f283 <95aed2af87ec43fa7624cc81dd13d37824ad4972; version=6.16

Published CVSS scores

5.5NVDCVSS: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.

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Technologies

Your stack

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Your stack

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