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CVE-2026-89863

7.5 · HIGH

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: edif: Fix NULL pointer deref in RX SA delete check qla_chk_edif_rx_sa_delete_pending() obtains the SCSI command…

Published Sep 16, 2026EPSS 0.68%

Overview

CVE-2026-89863 is a high-severity vulnerability. It was published on September 16, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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

scsi: qla2xxx: edif: Fix NULL pointer deref in RX SA delete check

qla_chk_edif_rx_sa_delete_pending() obtains the SCSI command via

GET_CMD_SP(sp) and immediately dereferences cmd->sc_data_direction.

That command pointer can be NULL: the firmware may post a status

completion for a command that has already been returned or aborted. The

caller qla2x00_status_entry() acknowledges this on the very same status

path, re-fetching GET_CMD_SP(sp) and bailing out with the "Command

already returned" message when it is NULL -- but that check runs only

after qla_chk_edif_rx_sa_delete_pending() has already dereferenced the

pointer, so a NULL cmd crashes the kernel in interrupt context.

Return early when cmd is NULL, before touching cmd->sc_data_direction.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/2191b0034a2f1307d421782e6eceddf8eec9e7f6Refgit.kernel.org/stable/c/75fd6d041c4a325ae37f4683e6678d3015988bb0Refgit.kernel.org/stable/c/94bfb61478bcb207d27f8cd24fd231421059519fRefgit.kernel.org/stable/c/96eb8a3fc9f7fe7ba32679fcf1d2fd7d251e7a8bRefgit.kernel.org/stable/c/c20ee380ca59c5a8646750c4849969a815924e2eRefgit.kernel.org/stable/c/de0c8ef3b900c5e971c82ef38c6f5c22c5f3d8c1Refgit.kernel.org/stable/c/e479e9b148456905d12711411484b94083c8ff58

How CyberStrike helps

Frequently asked questions

What is CVE-2026-89863?

CVE-2026-89863 is a high-severity vulnerability. It was published on September 16, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-89863?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-89863?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-89863?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-89863 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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