CVE-2024-50051 Information

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.

Reference

https://git.kernel.org/stable/c/373d55a47dc662e5e30d12ad5d334312f757c1f1 https://git.kernel.org/stable/c/90b72189de2cddacb26250579da0510b29a8b82b https://git.kernel.org/stable/c/984836621aad98802d92c4a3047114cf518074c8 https://git.kernel.org/stable/c/cd5106c77d6d6828aa82449f01f4eb436d602a21 https://git.kernel.org/stable/c/d0cde3911cf24e1bcdd4caa1d1b9ef57589db5a1 https://git.kernel.org/stable/c/e0c6ce8424095c2da32a063d3fc027494c689817 https://git.kernel.org/stable/c/f65d85bc1ffd8a2c194bb2cd65e35ed3648ddd59