CVE-2025-38406: wifi: ath6kl: remove WARN on bad firmware input

Published Jul 25, 2025
·
Updated

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

wifi: ath6kl: remove WARN on bad firmware input

If the firmware gives bad input, that's nothing to do with the driver's stack at this point etc., so the WARNON() doesn't add any value. Additionally, this is one of the top syzbot reports now. Just print a message, and as an added bonus, print the sizes too.

Affected Software

12 affected componentsFixes available
Linux Linux kernel
Linux Linux kernel<5.4.296
Linux Linux kernel>=5.5<5.10.240
Linux Linux kernel>=5.11<5.15.187
Linux Linux kernel>=5.16<6.1.144
Linux Linux kernel>=6.2<6.6.97
Linux Linux kernel>=6.7<6.12.37
Linux Linux kernel>=6.13<6.15.6
Linux Linux kernel=6.16-rc1
Linux Linux kernel=6.16-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

Jul 25, 2025
CVE Published
via MITRE·01:13 PM
Data Sourced
via MITRE·01:13 PM
Description
Data Sourced
via NVD·02:15 PM
RemedyDescriptionSeverityAffected 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-2025-38406?

CVE-2025-38406 has a severity rating that depends on its specific impact, typically assessed within the context of the Linux kernel environments.

2

How do I fix CVE-2025-38406?

To fix CVE-2025-38406, ensure to update the Linux kernel to the latest stable version that includes the patch for this vulnerability.

3

What kind of systems are affected by CVE-2025-38406?

CVE-2025-38406 affects systems running vulnerable versions of the Linux kernel with the ath6kl driver.

4

Does CVE-2025-38406 affect wireless connectivity?

CVE-2025-38406 relates to the ath6kl driver, which manages wireless connections and could impact systems using this driver.

5

Is CVE-2025-38406 a critical vulnerability?

The criticality of CVE-2025-38406 varies based on its exploitation potential in different environments, but it requires attention.

Contact

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