GHSA-X58G-PGF5-4JP7
Vulnerability from github – Published: 2024-05-19 09:34 – Updated: 2025-12-23 21:30In 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": [],
"aliases": [
"CVE-2024-35879"
],
"database_specific": {
"cwe_ids": [
"CWE-401"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-19T09:15:09Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nof: dynamic: Synchronize of_changeset_destroy() with the devlink removals\n\nIn the following sequence:\n 1) of_platform_depopulate()\n 2) of_overlay_remove()\n\nDuring the step 1, devices are destroyed and devlinks are removed.\nDuring the step 2, OF nodes are destroyed but\n__of_changeset_entry_destroy() can raise warnings related to missing\nof_node_put():\n ERROR: memory leak, expected refcount 1 instead of 2 ...\n\nIndeed, during the devlink removals performed at step 1, the removal\nitself releasing the device (and the attached of_node) is done by a job\nqueued in a workqueue and so, it is done asynchronously with respect to\nfunction calls.\nWhen the warning is present, of_node_put() will be called but wrongly\ntoo late from the workqueue job.\n\nIn order to be sure that any ongoing devlink removals are done before\nthe of_node destruction, synchronize the of_changeset_destroy() with the\ndevlink removals.",
"id": "GHSA-x58g-pgf5-4jp7",
"modified": "2025-12-23T21:30:18Z",
"published": "2024-05-19T09:34:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35879"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3127b2ee50c424a96eb3559fbb7b43cf0b111c7a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3ee2424107546d882e1ddd75333ca9c32879908c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7b6df050c45a1ea158fd50bc32a8e1447dd1e951"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/801c8b8ec5bfb3519566dff16a5ecd48302fca82"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8917e7385346bd6584890ed362985c219fe6ae84"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ae6d76e4f06c37a623e357e79d49b17411db6f5c"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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