CVE-2025-39676: scsi: qla4xxx: Prevent a potential error pointer dereference

Published Sep 5, 2025
·
Updated

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

scsi: qla4xxx: Prevent a potential error pointer dereference

The qla4xxxgetepfwdb() function is supposed to return NULL on error, but qla4xxxepconnect() returns error pointers. Propagating the error pointers will lead to an Oops in the caller, so change the error pointers to NULL.

Affected Software

16 affected componentsFixes available
Microsoft azl3 kernel 6.6.96.2-2
Microsoft azl3 kernel 6.6.96.2-1
Microsoft cbl2 kernel 5.15.186.1-1
Linux Linux kernel>=3.2.1<5.4.297
Linux Linux kernel>=5.5<5.10.241
Linux Linux kernel>=5.11<5.15.190
Linux Linux kernel>=5.16<6.1.149
Linux Linux kernel>=6.2<6.6.103
Linux Linux kernel>=6.7<6.12.44
Linux Linux kernel>=6.13<6.16.4
Linux Linux kernel=3.2
Linux Linux kernel=3.2-rc7
Linux Linux kernel=6.17-rc1
Linux Linux kernel=6.17-rc2
Debian Debian Linux=11.0
debian/linux
6.1.176-16.1.190-16.12.107-16.12.113-17.2.12-17.2.13-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/linux to a version that resolves this vulnerability.

    Fixed in 6.1.176-1Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.113-1Fixed in 7.2.12-1Fixed in 7.2.13-1

Event History

Sep 5, 2025
CVE Published
via MITRE·05:20 PM
Data Sourced
via MITRE·05:20 PM
Description
Data Sourced
via NVD·06:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Sep 7, 2025
Data Sourced
via Microsoft·01:14 AM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2025-39676?

CVE-2025-39676 is classified as a medium severity vulnerability in the Linux kernel.

2

How do I fix CVE-2025-39676?

To address CVE-2025-39676, you should upgrade to the latest version of the affected kernel, specifically versions 6.6.96.2-2 or later for the azl3 kernel.

3

What software is affected by CVE-2025-39676?

CVE-2025-39676 affects the Microsoft azl3 kernel 6.6.96.2-1 and 6.6.96.2-2.

4

What is the impact of CVE-2025-39676 on systems?

The impact of CVE-2025-39676 can lead to potential error pointer dereferences, which may cause system instability.

5

When was CVE-2025-39676 resolved?

CVE-2025-39676 was resolved in the recent updates to the Linux kernel.

Contact

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