CVE-2024-50051 spi: mpc52xx: Add cancel_work_sync before module remove

What is CVE-2024-50051?

CVE-2024-50051 is a high-severity use after free vulnerability in Linux kernel, published on 11 Jan 2025. 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:

spi: mpc52xx: Add cancel_work_sync before module remove

If we remove the module which will call mpc52xx_spi_remove it will free 'ms' through spi_unregister_controller. while the work ms->work will be used. The sequence of operations that may lead to a UAF bug.

Fix it by ensuring that the work is canceled before proceeding with the cleanup in mpc52xx_spi_remove.

Weakness: CWE-416

Which versions are affected by CVE-2024-50051?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-50051?

Apply the vendor's patch.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2024-50051 being exploited?

There is no known exploitation of CVE-2024-50051 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-2024-50051, DEBIAN-CVE-2024-50051, GHSA-qq8g-3hpq-mq34, ROOT-OS-DEBIAN-11-CVE-2024-50051, UBUNTU-CVE-2024-50051.