CVE-2026-46288
8.4 HIGHIn the Linux kernel, the following vulnerability has been resolved: of: unittest: fix use-after-free in of_unittest_changeset() The var...
Published: 2026-06-08 · Last updated: 2026-06-14
Severity and scoring
- CVSS
- 8.4 HIGH
- Vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
In the Linux kernel, the following vulnerability has been resolved: of: unittest: fix use-after-free in of_unittest_changeset() The variable 'parent' is assigned the value of 'nchangeset' earlier in the function, meaning both point to the same struct device_node. The call to of_node_put(nchangeset) can decrement the reference count to zero and free the node if there are no other holders. After that, the code still uses 'parent' to check for the presence of a property and to read a string property, leading to a use-after-free. Fix this by moving the of_node_put() call after the last access to 'parent', avoiding the UAF.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-46288
- [Other]https://git.kernel.org/stable/c/37318d1a27c9cc5a70d3cd7e49e30ec86f2b8ca1
- [Other]https://git.kernel.org/stable/c/6fdad20b7975bdc32e85b45f8f7c640f6687b81f
- [Other]https://git.kernel.org/stable/c/7f0f0926f3010b10cff5e93446258f971e42f2fd
- [Other]https://git.kernel.org/stable/c/faecdd423c27f0d6090156a435ba9dbbac0eaddb