Vulnerabilidad · Publicado 08/06/2026 · Actualizado 01/08/2026
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 t…
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.
Score: 8.4/10 — Severidad: HIGH — Estado NIST: Analyzed
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Linux kernel — Linux
CWE-416
Publicado en NIST NVD.