---
title: "CVE-2026-97409: Linux Kernel nvme-fc - Denial of Service"
description: "Linux kernel nvme-fc contains a denial of service caused by aborting requests in uninitialized io tagset in __nvme_fc_abort_outstanding_ios(), letting attackers cause error recovery and connectivity loss, exploit requires triggering admin request timeout on a new nvme-fc controller."
url: https://panop.io/threat-heartbeat/CVE-2026-97409/
---

# CVE-2026-97409 Linux Kernel nvme-fc - Denial of Service

Linux kernel nvme-fc contains a denial of service caused by aborting requests in uninitialized io tagset in \_\_nvme\_fc\_abort\_outstanding\_ios(), letting attackers cause error recovery and connectivity loss, exploit requires triggering admin request timeout on a new nvme-fc controller.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.24% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-97409)

## Details

Type

Denial of Service

Impact

Denial Of Service

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Published

24 September 2026

Updated

15 October 2026

## Vendor fix

Update to the latest Linux kernel version containing the fix for \_\_nvme\_fc\_abort\_outstanding\_ios() to ensure proper initialization checks.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-97409](https://nvd.nist.gov/vuln/detail/CVE-2026-97409)
- [https://git.kernel.org/stable/c/da930308b4bc24c335574e85ca84ff70a988cf05](https://git.kernel.org/stable/c/da930308b4bc24c335574e85ca84ff70a988cf05)
- [https://git.kernel.org/stable/c/dd39064d2948b14dbe4f364fe4b3c9cfc632cc21](https://git.kernel.org/stable/c/dd39064d2948b14dbe4f364fe4b3c9cfc632cc21)
- [https://git.kernel.org/stable/c/ee38469f88492df99e1d97f03aa40ecfd218934f](https://git.kernel.org/stable/c/ee38469f88492df99e1d97f03aa40ecfd218934f)
- [https://git.kernel.org/stable/c/5488e2706c58444a24e15773237dcc0bedcd771f](https://git.kernel.org/stable/c/5488e2706c58444a24e15773237dcc0bedcd771f)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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