---
title: "CVE-2026-89863: Linux Kernel qla2xxx - Denial of Service"
description: "Linux kernel contains a NULL pointer dereference caused by qla_chk_edif_rx_sa_delete_pending() dereferencing a NULL SCSI command pointer in qla2xxx driver, letting attackers cause a kernel crash (DoS), exploit requires crafted firmware status completion."
url: https://panop.io/threat-heartbeat/CVE-2026-89863/
---

# CVE-2026-89863 Linux Kernel qla2xxx - Denial of Service

Linux kernel contains a NULL pointer dereference caused by qla\_chk\_edif\_rx\_sa\_delete\_pending() dereferencing a NULL SCSI command pointer in qla2xxx driver, letting attackers cause a kernel crash (DoS), exploit requires crafted firmware status completion.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.67% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-89863)

## Details

Type

Denial of Service

Impact

Denial Of Service

CVSS vector

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

Published

16 September 2026

Updated

15 October 2026

## Vendor fix

Update to the latest Linux kernel version containing the fix.

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-2026-89863](https://nvd.nist.gov/vuln/detail/CVE-2026-89863)
- [https://git.kernel.org/stable/c/e479e9b148456905d12711411484b94083c8ff58](https://git.kernel.org/stable/c/e479e9b148456905d12711411484b94083c8ff58)
- [https://git.kernel.org/stable/c/2191b0034a2f1307d421782e6eceddf8eec9e7f6](https://git.kernel.org/stable/c/2191b0034a2f1307d421782e6eceddf8eec9e7f6)
- [https://git.kernel.org/stable/c/75fd6d041c4a325ae37f4683e6678d3015988bb0](https://git.kernel.org/stable/c/75fd6d041c4a325ae37f4683e6678d3015988bb0)
- [https://git.kernel.org/stable/c/94bfb61478bcb207d27f8cd24fd231421059519f](https://git.kernel.org/stable/c/94bfb61478bcb207d27f8cd24fd231421059519f)
- [https://git.kernel.org/stable/c/96eb8a3fc9f7fe7ba32679fcf1d2fd7d251e7a8b](https://git.kernel.org/stable/c/96eb8a3fc9f7fe7ba32679fcf1d2fd7d251e7a8b)
- [https://git.kernel.org/stable/c/c20ee380ca59c5a8646750c4849969a815924e2e](https://git.kernel.org/stable/c/c20ee380ca59c5a8646750c4849969a815924e2e)
- [https://git.kernel.org/stable/c/de0c8ef3b900c5e971c82ef38c6f5c22c5f3d8c1](https://git.kernel.org/stable/c/de0c8ef3b900c5e971c82ef38c6f5c22c5f3d8c1)

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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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