CVE-2026-98855
Received
Received - Intake
Linux Kernel Property Handling Use-After-Free
Vulnerability report for CVE-2026-98855, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-18
Last updated on: 2026-10-18
Assigner: kernel.org
Description
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.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Linux | Linux | f96278810150fc39085d1872e5b39ea06366d03e |
| Linux | Linux | f96278810150fc39085d1872e5b39ea06366d03e |
| Linux | Linux | f96278810150fc39085d1872e5b39ea06366d03e |
| Linux | Linux | f96278810150fc39085d1872e5b39ea06366d03e |
| Linux | Linux | b52ca352489be8beb7de3a8181509a0deaf72e21 |
| Linux | Linux | 4.19.49 |
| Linux | Linux | 5.0 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
