CVE-2026-98855

/// Technical description

In the Linux kernel, the following vulnerability has been resolved:

of/overlay: put property on deadprops only after changeset add succeeds

add_changeset_property() links a new property of a not-yet-live

target node into the node's deadprops list before handing it to

of_changeset_add_property(). If that fails, the error path frees the

property but leaves the freed pointer linked in deadprops, and

of_node_release() frees it a second time when the aborted overlay's

node is released.

Record the changeset entry first and link the property into deadprops

only on success. of_changeset_add_property() never looks at the

node's property lists, so the order of the two steps is otherwise

immaterial, and the error path frees a property that nothing

references.

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References