CVE-2024-35879
Linux Kernel of:devlink Memory Leak
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.
INFO
Published Date :
May 19, 2024, 9:15 a.m.
Last Modified :
Nov. 21, 2024, 9:21 a.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-35879.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2024-35879 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-35879 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/3127b2ee50c424a96eb3559fbb7b43cf0b111c7a Added Reference https://git.kernel.org/stable/c/3ee2424107546d882e1ddd75333ca9c32879908c Added Reference https://git.kernel.org/stable/c/7b6df050c45a1ea158fd50bc32a8e1447dd1e951 Added Reference https://git.kernel.org/stable/c/801c8b8ec5bfb3519566dff16a5ecd48302fca82 Added Reference https://git.kernel.org/stable/c/8917e7385346bd6584890ed362985c219fe6ae84 Added Reference https://git.kernel.org/stable/c/ae6d76e4f06c37a623e357e79d49b17411db6f5c Added Reference https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Nov. 05, 2024
Action Type Old Value New Value Removed Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 25, 2024
Action Type Old Value New Value Added Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html [No types assigned] -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 29, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 19, 2024
Action Type Old Value New Value Added 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. Added Reference kernel.org https://git.kernel.org/stable/c/3127b2ee50c424a96eb3559fbb7b43cf0b111c7a [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/3ee2424107546d882e1ddd75333ca9c32879908c [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/7b6df050c45a1ea158fd50bc32a8e1447dd1e951 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/801c8b8ec5bfb3519566dff16a5ecd48302fca82 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/ae6d76e4f06c37a623e357e79d49b17411db6f5c [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/8917e7385346bd6584890ed362985c219fe6ae84 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-35879 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-35879
weaknesses.