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.

Classification

CVE ID: CVE-2024-50051

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 5.05% (scored less or equal to compared to others)

EPSS Date: 2025-02-09 (when was this score calculated)

References

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

Timeline