CVE-2025-38656: wifi: iwlwifi: Fix error code in iwl_op_mode_dvm_start()

Published Aug 22, 2025
·
Updated

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

wifi: iwlwifi: Fix error code in iwlopmodedvmstart()

Preserve the error code if iwlsetupdeferredwork() fails. The current code returns ERRPTR(0) (which is NULL) on this path. I believe the missing error code potentially leads to a use after free involving debugfs.

Affected Software

11 affected componentsFixes available
Linux Kernel
Microsoft azl3 kernel 6.6.112.1-2
Microsoft azl3 kernel 6.6.117.1-1
Linux Linux kernel>=5.4.297<5.5
Linux Linux kernel>=5.10.241<5.11
Linux Linux kernel>=5.15.190<5.16
Linux Linux kernel>=6.1.148<6.2
Linux Linux kernel>=6.6.102<6.7
Linux Linux kernel>=6.12.42<6.13
debian/linux<6.12.115-2
6.12.115-2
debian/linux<=6.12.107-1
6.1.176-16.1.190-16.12.115-27.2.12-17.2.15-1

Event History

Aug 22, 2025
CVE Published
via MITRE·04:00 PM
Data Sourced
via MITRE·04:00 PM
DescriptionSeverity
Data Sourced
via NVD·04:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·04:15 PM
DescriptionSeverityAffected Software
Nov 28, 2025
Data Sourced
via Microsoft·01:01 AM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the severity of CVE-2025-38656?

CVE-2025-38656 is a low severity vulnerability affecting the Linux kernel's iwlwifi driver.

2

How do I fix CVE-2025-38656?

To fix CVE-2025-38656, update the Linux kernel to the latest version where the vulnerability has been addressed.

3

Which versions of Linux Kernel are affected by CVE-2025-38656?

CVE-2025-38656 affects various versions of the Linux kernel that include the iwlwifi driver but specific versions may vary.

4

What are the potential impacts of CVE-2025-38656?

The impact of CVE-2025-38656 may include incorrect error handling in the wifi driver, potentially leading to unexpected behavior.

5

Is CVE-2025-38656 being actively exploited?

As of now, there is no public evidence to suggest that CVE-2025-38656 is being actively exploited.

Contact

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