CVE-2024-35879

MEDIUM
Published May 19, 2024 Modified Dec 23, 2025 CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: of: dynamic: Synchronize of_changeset_destroy() with the devlink removals In the following sequence: 1) of_platform_depopulate() 2) of_overlay_remove() During the step 1, devices are destroyed and devlinks are removed. During the step 2, OF nodes are destroyed but __of_changeset_entry_destroy() can raise warnings related to missing of_node_put(): ERROR: memory leak, expected refcount 1 instead of 2 ... Indeed, during the devlink removals performed at step 1, the removal itself releasing the device (and the attached of_node) is done by a job queued in a workqueue and so, it is done asynchronously with respect to function calls. When the warning is present, of_node_put() will be called but wrongly too late from the workqueue job. In order to be sure that any ongoing devlink removals are done before the of_node destruction, synchronize the of_changeset_destroy() with the devlink removals.

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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-401 CWE-401

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
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
debian debian_linux

References

Advisories & Patches

https://git.kernel.org/stable/c/3127b2ee50c424a96eb3559fbb7b43cf0b111c7a https://git.kernel.org/stable/c/3ee2424107546d882e1ddd75333ca9c32879908c https://git.kernel.org/stable/c/7b6df050c45a1ea158fd50bc32a8e1447dd1e951 https://git.kernel.org/stable/c/801c8b8ec5bfb3519566dff16a5ecd48302fca82 https://git.kernel.org/stable/c/8917e7385346bd6584890ed362985c219fe6ae84 https://git.kernel.org/stable/c/ae6d76e4f06c37a623e357e79d49b17411db6f5c https://git.kernel.org/stable/c/3127b2ee50c424a96eb3559fbb7b43cf0b111c7a https://git.kernel.org/stable/c/3ee2424107546d882e1ddd75333ca9c32879908c https://git.kernel.org/stable/c/7b6df050c45a1ea158fd50bc32a8e1447dd1e951 https://git.kernel.org/stable/c/801c8b8ec5bfb3519566dff16a5ecd48302fca82 https://git.kernel.org/stable/c/8917e7385346bd6584890ed362985c219fe6ae84 https://git.kernel.org/stable/c/ae6d76e4f06c37a623e357e79d49b17411db6f5c

Frequently Asked Questions

What is CVE-2024-35879? +
In the Linux kernel, the following vulnerability has been resolved: of: dynamic: Synchronize of_changeset_destroy() with the devlink removals In the following sequence: 1) of_platform_depopulate() 2) of_overlay_remove() During the step 1, devices are destroyed and devlinks are removed. During the step 2, OF nodes are destroyed but __of_changeset_entry_destroy() can raise warnings related to missing of_node_put(): ERROR: memory leak, expected refcount 1 instead of 2 ... Indeed, during the devlink removals performed at step 1, the removal itself releasing the device (and the attached of_node) is done by a job queued in a workqueue and so, it is done asynchronously with respect to function calls. When the warning is present, of_node_put() will be called but wrongly too late from the workqueue job. In order to be sure that any ongoing devlink removals are done before the of_node destruction, synchronize the of_changeset_destroy() with the devlink removals. It has a CVSS v3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2024-35879? +
CVE-2024-35879 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-2024-35879? +
CVE-2024-35879 affects products from debian, linux, specifically: debian_linux, linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-35879? +
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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