CVE-2026-98855
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.
Affected versions
Linux kernel versions
4.19.49,
5.0
and later are affected. Fixed in
6.12.113,
6.18.56,
7.2.10,
7.3
and their respective stable series.
References
4 totalFrequently asked questions
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What is CVE-2026-98855?
CVE-2026-98855 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.19.49 onward and has been patched in 6.12.113, 6.18.56, 7.2.10 and others. CVE-2026-98855 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-98855?
Yes. CVE-2026-98855 has been patched. Fixed versions include 6.12.113, 6.18.56, 7.2.10 and others. If you are running Linux kernel 4.19.49 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-98855 actively exploited?
No. CVE-2026-98855 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.