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CVE-2025-68741

9.8 · CRITICAL

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix improper freeing of purex item In qla2xxx_process_purls_iocb(), an item is allocated via qla27xx_copy_multip…

Published Dec 24, 2025EPSS 0.43%

Overview

CVE-2025-68741 is a critical-severity vulnerability. It was published on December 24, 2025 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. 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: Fix improper freeing of purex item

In qla2xxx_process_purls_iocb(), an item is allocated via

qla27xx_copy_multiple_pkt(), which internally calls

qla24xx_alloc_purex_item().

The qla24xx_alloc_purex_item() function may return a pre-allocated item

from a per-adapter pool for small allocations, instead of dynamically

allocating memory with kzalloc().

An error handling path in qla2xxx_process_purls_iocb() incorrectly uses

kfree() to release the item. If the item was from the pre-allocated

pool, calling kfree() on it is a bug that can lead to memory corruption.

Fix this by using the correct deallocation function,

qla24xx_free_purex_item(), which properly handles both dynamically

allocated and pre-allocated items.

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/4bccd506a1f1ab01d1f45b2a3effff6bedc73cf9Refgit.kernel.org/stable/c/5fa1c8226b4532ad7011d295d3ab4ad45df105aeRefgit.kernel.org/stable/c/78b1a242fe612a755f2158fd206ee6bb577d18caRefgit.kernel.org/stable/c/8e9f0a0717ba31d5842721627ade1e62d7aec012Refgit.kernel.org/stable/c/cfe3e2f768d248fd3d965d561d0768a56dd0b9f8

How CyberStrike helps

Frequently asked questions

What is CVE-2025-68741?

CVE-2025-68741 is a critical-severity vulnerability. It was published on December 24, 2025 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2025-68741?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-68741?

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-2025-68741?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-68741 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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