CVE-2024-39292

MEDIUM
Published Jun 24, 2024 Modified Nov 4, 2025 CWE-415

Description

In the Linux kernel, the following vulnerability has been resolved: um: Add winch to winch_handlers before registering winch IRQ Registering a winch IRQ is racy, an interrupt may occur before the winch is added to the winch_handlers list. If that happens, register_winch_irq() adds to that list a winch that is scheduled to be (or has already been) freed, causing a panic later in winch_cleanup(). Avoid the race by adding the winch to the winch_handlers list before registering the IRQ, and rolling back if um_request_irq() fails.

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CVSS v3.1 Score

5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-415 CWE-415

Affected Products

Vendor Product
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel

References

Advisories & Patches

https://git.kernel.org/stable/c/0c02d425a2fbe52643a5859a779db0329e7dddd4 https://git.kernel.org/stable/c/31960d991e43c8d6dc07245f19fc13398e90ead2 https://git.kernel.org/stable/c/351d1a64544944b44732f6a64ed65573b00b9e14 https://git.kernel.org/stable/c/434a06c38ee1217a8baa0dd7c37cc85d50138fb0 https://git.kernel.org/stable/c/66ea9a7c6824821476914bed21a476cd20094f33 https://git.kernel.org/stable/c/73b8e21f76c7dda4905655d2e2c17dc5a73b87f1 https://git.kernel.org/stable/c/a0fbbd36c156b9f7b2276871d499c9943dfe5101 https://git.kernel.org/stable/c/dc1ff95602ee908fcd7d8acee7a0dadb61b1a0c0 https://git.kernel.org/stable/c/0c02d425a2fbe52643a5859a779db0329e7dddd4 https://git.kernel.org/stable/c/31960d991e43c8d6dc07245f19fc13398e90ead2 https://git.kernel.org/stable/c/351d1a64544944b44732f6a64ed65573b00b9e14 https://git.kernel.org/stable/c/434a06c38ee1217a8baa0dd7c37cc85d50138fb0 https://git.kernel.org/stable/c/66ea9a7c6824821476914bed21a476cd20094f33 https://git.kernel.org/stable/c/73b8e21f76c7dda4905655d2e2c17dc5a73b87f1 https://git.kernel.org/stable/c/a0fbbd36c156b9f7b2276871d499c9943dfe5101 https://git.kernel.org/stable/c/dc1ff95602ee908fcd7d8acee7a0dadb61b1a0c0

Frequently Asked Questions

What is CVE-2024-39292? +
In the Linux kernel, the following vulnerability has been resolved: um: Add winch to winch_handlers before registering winch IRQ Registering a winch IRQ is racy, an interrupt may occur before the winch is added to the winch_handlers list. If that happens, register_winch_irq() adds to that list a winch that is scheduled to be (or has already been) freed, causing a panic later in winch_cleanup(). Avoid the race by adding the winch to the winch_handlers list before registering the IRQ, and rolling back if um_request_irq() fails. It has a CVSS v3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2024-39292? +
CVE-2024-39292 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2024-39292? +
CVE-2024-39292 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-39292? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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