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.
History

Fri, 22 Nov 2024 12:00:00 +0000

Type Values Removed Values Added
References

Tue, 05 Nov 2024 10:45:00 +0000

Type Values Removed Values Added
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-05-19T08:34:36.450Z

Updated: 2025-05-04T12:55:59.140Z

Reserved: 2024-05-17T13:50:33.111Z

Link: CVE-2024-35879

cve-icon Vulnrichment

Updated: 2024-05-23T19:01:24.955Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-05-19T09:15:09.173

Modified: 2024-11-21T09:21:06.877

Link: CVE-2024-35879

cve-icon Redhat

Severity : Low

Publid Date: 2024-05-19T00:00:00Z

Links: CVE-2024-35879 - Bugzilla