CVE-2024-55639: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: net: renesas: rswitch: avoid use-after-put for a device tree node The device tree node saved in the rswitch_device structure is used at several driver locations. So passing this node to of_node_put() after the first use is wrong. Move of_node_put() for this node to exit paths.

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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

Affected Products

Vendor	Product	Versions
linux	linux_kernel	6.3 — 6.6.67
linux	linux_kernel	6.7 — 6.12.6
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/66b7e9f85b8459c823b11e9af69dbf4be5eb6be8 https://git.kernel.org/stable/c/92007a28f95413058a7268dc84e5f44b700165d1 https://git.kernel.org/stable/c/bf8c6755f02029d1eddc3ff19b870240f054afc7

Frequently Asked Questions

What is CVE-2024-55639? +

In the Linux kernel, the following vulnerability has been resolved: net: renesas: rswitch: avoid use-after-put for a device tree node The device tree node saved in the rswitch_device structure is used at several driver locations. So passing this node to of_node_put() after the first use is wrong. Move of_node_put() for this node to exit paths. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-55639? +

CVE-2024-55639 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-2024-55639? +

CVE-2024-55639 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-2024-55639? +

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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CVE-2024-55639