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Linux Kernel EUVDEUVD-2026-80460

| CVE-2026-89860 HIGH
2026-09-16 Linux GHSA-hfg3-mcr3-v8r7
8.8
CVSS 3.1 · Vendor: Linux
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Severity by source

Vendor (Linux) PRIMARY
8.8 HIGH
AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
5.3 MEDIUM

Local, driver-internal double-abort race (AV:L/AC:H) needing an FC HBA and local privileges (PR:L); impact is workqueue corruption → crash/hang, so A:H, minor I:L, no confidentiality.

3.1 AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
4.0 AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (Linux).

CVSS VectorVendor: Linux

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

5
Analysis Generated
Sep 16, 2026 - 15:42 vuln.today
CVSS changed
Sep 16, 2026 - 15:22 NVD
8.8 (HIGH)
Patch available
Sep 16, 2026 - 11:03 EUVD
CVE Published
Sep 16, 2026 - 10:31 cve.org
HIGH 8.8
CVE Published
Sep 16, 2026 - 10:31 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

In the Linux kernel, the following vulnerability has been resolved:

scsi: qla2xxx: Initialize NVMe abort_work once at submission

qla_nvme_fcp_abort() and qla_nvme_ls_abort() ran INIT_WORK() on priv->abort_work immediately before schedule_work(). INIT_WORK() reinitializes the work_struct, resetting its list head and clearing the pending bit. If an abort is issued more than once for the same command (for example, concurrent transport teardown and a timeout-driven abort), the second INIT_WORK() reinitializes a work item that is already queued, which can corrupt the workqueue list and lead to crashes or a looping worker.

Initialize priv->abort_work once at command submission, next to the existing per-command spin_lock_init(&priv->cmd_lock), and leave only schedule_work() in the abort paths. schedule_work() already does nothing when the work item is still pending, so a repeated abort no longer disturbs an in-flight work item. The command is not returned to the transport until the final kref_put()/release callback runs after abort_work has completed, so the work item is idle before priv is reused and the single submission-time INIT_WORK() is safe.

AnalysisAI

Repeated command aborts in the Linux kernel's qla2xxx (QLogic Fibre Channel) driver can reinitialize an already-queued work item, corrupting workqueue list state and leading to host crashes, hangs, or a looping worker - a denial-of-service condition on systems using NVMe over Fibre Channel. Affected code exists from the introduction commit e473b3074104ee09227cfbba5f872e3ea15dd280 (reported as Linux 4.17) onward, and fixes are available in stable releases 6.6.157, 6.12.110, 6.18.51, 7.2.5 and 7.3-rc1. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation Requires a host with a QLogic qla2xxx Fibre Channel HBA actively handling NVMe-over-FC (FCP or LS) I/O, and the specific race of two aborts being issued for the same command - e.g. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment This is a well-understood pattern of a HIGH-vendor-CVSS-but-LOW-real-world-priority Linux kernel bug. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Vendor-released patch: upgrade to Linux 6.6.157, 6.12.110, 6.18.51, 7.2.5 or 7.3-rc1 (media/stable commits b403700ac62fbf3c310196386e125879a182efcf, 6a1b50c4879c2e6a034e8e85f9c055f0eea157c7, 67f0d5187c29360388f7e1e503c627ec45d01089, f4aaa4a4e6f1da6f3abfd80e1917bef922287177, 7e85f6dbc85616de2172bce8eaf84b387a723cd1; advisory mirror at https://nvd.nist.gov/vuln/detail/CVE-2026-89860), or apply the equivalent backport from your distribution vendor if you are on an LTS kernel older than 6.6. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, inventory every Linux host with a qla2xxx (QLogic) HBA on an NVMe over Fibre Channel fabric and confirm kernel versions, flagging any system at Linux 4.17 or later that is not already on 6.6.157, 6.12.110, 6.18.51, 7.2.5 or 7.3-rc1 as exposed, and prioritize patching storage or virtualization nodes whose downtime carries the greatest business impact. …

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EUVD-2026-80460 vulnerability details – vuln.today

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