CVE-2026-46241
Analyzed Analyzed - Analysis Complete
Use-After-Free in Linux Kernel SPI MPC52xx Driver

Publication date: 2026-05-28

Last updated on: 2026-06-10

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: spi: mpc52xx: fix use-after-free on registration failure Make sure to disable and free the interrupts in case controller registration fails to avoid a potential use-after-free and resource leak. This issue was flagged by Sashiko when reviewing a controller deregistration fix.
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Meta Information
Published
2026-05-28
Last Modified
2026-06-10
Generated
2026-06-17
AI Q&A
2026-05-28
EPSS Evaluated
2026-06-16
NVD
CVE-2026-46241
EUVD
EUVD-2026-32759
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 6.13 (inc) to 6.18.32 (exc)
linux linux_kernel From 6.19 (inc) to 7.0.9 (exc)
linux linux_kernel From 2.6.33 (inc) to 6.12.90 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-416 The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
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Executive Summary

This vulnerability is a use-after-free issue in the Linux kernel's spi: mpc52xx driver. It occurs when the controller registration fails but interrupts are not properly disabled and freed, which can lead to accessing freed memory and resource leaks.

Impact Analysis

The vulnerability can cause a use-after-free condition and resource leaks in the Linux kernel. This may lead to system instability, crashes, or potential exploitation by attackers to execute arbitrary code or cause denial of service.

Mitigation Strategies

The vulnerability involves a use-after-free issue in the Linux kernel's spi: mpc52xx driver when controller registration fails.

To mitigate this vulnerability, ensure that your Linux kernel is updated to a version where this issue is fixed.

Specifically, the fix involves disabling and freeing interrupts if controller registration fails to avoid use-after-free and resource leaks.

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