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…
Does this matter?
Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.24% probability · 15th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-401
- Affected
- linux/linux kernel · debian/debian linux
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/3127b2ee50c424a96eb3559fbb7b43cf0b111c7aPatch
- https://git.kernel.org/stable/c/3ee2424107546d882e1ddd75333ca9c32879908cPatch
- https://git.kernel.org/stable/c/7b6df050c45a1ea158fd50bc32a8e1447dd1e951Patch
- https://git.kernel.org/stable/c/801c8b8ec5bfb3519566dff16a5ecd48302fca82Patch
- https://git.kernel.org/stable/c/8917e7385346bd6584890ed362985c219fe6ae84Patch
- https://git.kernel.org/stable/c/ae6d76e4f06c37a623e357e79d49b17411db6f5cPatch
- https://git.kernel.org/stable/c/3127b2ee50c424a96eb3559fbb7b43cf0b111c7aPatch
- https://git.kernel.org/stable/c/3ee2424107546d882e1ddd75333ca9c32879908cPatch
- https://git.kernel.org/stable/c/7b6df050c45a1ea158fd50bc32a8e1447dd1e951Patch
- https://git.kernel.org/stable/c/801c8b8ec5bfb3519566dff16a5ecd48302fca82Patch
- https://git.kernel.org/stable/c/8917e7385346bd6584890ed362985c219fe6ae84Patch
- https://git.kernel.org/stable/c/ae6d76e4f06c37a623e357e79d49b17411db6f5cPatch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.