---
title: "CVE-2026-89844: Linux Kernel qla2xxx - Race Condition"
description: "Linux kernel scsi qla2xxx contains a race condition caused by missing vport_slock during host map update in report ID acquisition, letting attackers cause data structure corruption, exploit requires concurrent host_map updates."
url: https://panop.io/threat-heartbeat/CVE-2026-89844/
---

# CVE-2026-89844 Linux Kernel qla2xxx - Race Condition

Linux kernel scsi qla2xxx contains a race condition caused by missing vport\_slock during host map update in report ID acquisition, letting attackers cause data structure corruption, exploit requires concurrent host\_map updates.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.34% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-89844)

## Details

Type

Race Condition

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

16 September 2026

Updated

15 October 2026

## Vendor fix

Update to the latest Linux kernel version containing the fix for this issue.

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-2026-89844](https://nvd.nist.gov/vuln/detail/CVE-2026-89844)
- [https://git.kernel.org/stable/c/7d0b3f745efb24c0aac5e06b49b3420bc65d23b9](https://git.kernel.org/stable/c/7d0b3f745efb24c0aac5e06b49b3420bc65d23b9)
- [https://git.kernel.org/stable/c/e8f1b0cb9782338c6341ceed816e9c1243743cdd](https://git.kernel.org/stable/c/e8f1b0cb9782338c6341ceed816e9c1243743cdd)
- [https://git.kernel.org/stable/c/6ed66e2a67bbd22877008ff9aa64bd574a7fc011](https://git.kernel.org/stable/c/6ed66e2a67bbd22877008ff9aa64bd574a7fc011)
- [https://git.kernel.org/stable/c/776e4e8cbcf155302f430ce9793d1502e3c113a0](https://git.kernel.org/stable/c/776e4e8cbcf155302f430ce9793d1502e3c113a0)
- [https://git.kernel.org/stable/c/7944039ba9cb5c3a935d17c91004e3b8649ff58e](https://git.kernel.org/stable/c/7944039ba9cb5c3a935d17c91004e3b8649ff58e)

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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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