CVE-2024-40941 wifi: iwlwifi: mvm: don't read past the mfuart notifcation

What is CVE-2024-40941?

CVE-2024-40941 is a high-severity vulnerability in Linux kernel, published on 12 Jul 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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

wifi: iwlwifi: mvm: don't read past the mfuart notifcation

In case the firmware sends a notification that claims it has more data than it has, we will read past that was allocated for the notification. Remove the print of the buffer, we won't see it by default. If needed, we can see the content with tracing.

This was reported by KFENCE.

Which versions are affected by CVE-2024-40941?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-40941?

Apply the vendor's patch.

Is CVE-2024-40941 being exploited?

There is no known exploitation of CVE-2024-40941 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2024-40941, DEBIAN-CVE-2024-40941, GHSA-637c-w92w-633g, UBUNTU-CVE-2024-40941.