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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
d007150b4e15bfcb8d36cfd88a5645d42e44d383 to < 3127b2ee50c424a96eb3559fbb7b43cf0b111c7aaffected80dd33cf72d1ab4f0af303f1fa242c6d6c8d328f to < 3ee2424107546d882e1ddd75333ca9c32879908caffected80dd33cf72d1ab4f0af303f1fa242c6d6c8d328f to < 7b6df050c45a1ea158fd50bc32a8e1447dd1e951affected80dd33cf72d1ab4f0af303f1fa242c6d6c8d328f to < 801c8b8ec5bfb3519566dff16a5ecd48302fca82affected80dd33cf72d1ab4f0af303f1fa242c6d6c8d328f to < ae6d76e4f06c37a623e357e79d49b17411db6f5caffected80dd33cf72d1ab4f0af303f1fa242c6d6c8d328f to < 8917e7385346bd6584890ed362985c219fe6ae84affected252c23915546863685ecc68cb3a39e7e80c6c9d4affected5.10.42 to < 5.10.215affected5.12.9 to < 5.13affected
Linux Linux
Default version status: affected
5.13affected0 to < 5.13unaffected5.10.215 to ≤ 5.10.*unaffected5.15.154 to ≤ 5.15.*unaffected6.1.85 to ≤ 6.1.*unaffected6.6.26 to ≤ 6.6.*unaffected6.8.5 to ≤ 6.8.*unaffected6.9 to ≤ *unaffected
References
- 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/ae6d76e4f06c37a623e357e79d49b17411db6f5c ↗
- https://git.kernel.org/stable/c/8917e7385346bd6584890ed362985c219fe6ae84 ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html ↗