CVE-2026-89860

Kernel crash via reinitialized queued abort work

Published Sep 16, 2026 · Updated Sep 16, 2026

A workqueue race in the qla2xxx NVMe path in Linux allows attackers to crash or hang the kernel through repeated command aborts. The FCP and link-service abort paths reinitialize priv->abort_work immediately before scheduling it, resetting a work item that can already be queued and corrupting its list state. Reachability requires overlapping aborts for one NVMe command, such as transport teardown concurrent with a timeout, and the reported consequence is limited to kernel availability.

CVSS severityUnavailable
Unscored
EPSS probabilityUnavailable
No score available in this record
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

A workqueue race in the qla2xxx NVMe path in Linux allows attackers to crash or hang the kernel through repeated command aborts. The FCP and link-service abort paths reinitialize priv->abort_work immediately before scheduling it, resetting a work item that can already be queued and corrupting its list state. Reachability requires overlapping aborts for one NVMe command, such as transport teardown concurrent with a timeout, and the reported consequence is limited to kernel availability.

The record

CVE
CVE-2026-89860
Published
Sep 16, 2026
Updated
Sep 16, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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=4.17
  2. Affected versionversion=e473b3074104ee09227cfbba5f872e3ea15dd280 <67f0d5187c29360388f7e1e503c627ec45d01089
  3. Affected versionversion=e473b3074104ee09227cfbba5f872e3ea15dd280 <6a1b50c4879c2e6a034e8e85f9c055f0eea157c7
  4. Affected versionversion=e473b3074104ee09227cfbba5f872e3ea15dd280 <7e85f6dbc85616de2172bce8eaf84b387a723cd1
  5. Affected versionversion=e473b3074104ee09227cfbba5f872e3ea15dd280 <b403700ac62fbf3c310196386e125879a182efcf
  6. Affected versionversion=e473b3074104ee09227cfbba5f872e3ea15dd280 <f4aaa4a4e6f1da6f3abfd80e1917bef922287177

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=4.17; version=e473b3074104ee09227cfbba5f872e3ea15dd280 <67f0d5187c29360388f7e1e503c627ec45d01089; version=e473b3074104ee09227cfbba5f872e3ea15dd280 <6a1b50c4879c2e6a034e8e85f9c055f0eea157c7; version=e473b3074104ee09227cfbba5f872e3ea15dd280 <7e85f6dbc85616de2172bce8eaf84b387a723cd1; version=e473b3074104ee09227cfbba5f872e3ea15dd280 <b403700ac62fbf3c310196386e125879a182efcf; version=e473b3074104ee09227cfbba5f872e3ea15dd280 <f4aaa4a4e6f1da6f3abfd80e1917bef922287177

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

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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