CVE-2023-53856

In the Linux kernel, the following vulnerability has been resolved: of: overlay: Call of_changeset_init() early When of_overlay_fdt_apply() fails, the changeset may be partially applied, and the caller is still expected to call of_overlay_remove() to clean up this partial state. However, of_overlay_apply() calls of_resolve_phandles() before init_overlay_changeset(). Hence if the overlay fails to apply due to an unresolved symbol, the overlay_changeset.cset.entries list is still uninitialized, and cleanup will crash with a NULL-pointer dereference in overlay_removal_is_ok(). Fix this by moving the call to of_changeset_init() from init_overlay_changeset() to of_overlay_fdt_apply(), where all other early initialization is done.

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/01bb96ad38089f5cc6de7746dac13437d35eb1dc
https://git.kernel.org/stable/c/3fb210cd521c9efcb211e9f5ce40fc907200bf13
https://git.kernel.org/stable/c/a9515ff4fb142b690a0d2b58782b15903b990dba
https://git.kernel.org/stable/c/be86241bf5d1efd16d8a7231c13b33459c5d755d
https://git.kernel.org/stable/c/c403c81b577a67fe9ec6a2e89d143256487be50f

Configurations

No configuration.

History

No history.

Information

Published : 2025-12-09 16:17

Updated : 2026-06-17 06:46

NVD link : CVE-2023-53856

Mitre link : CVE-2023-53856

CVE.ORG link : CVE-2023-53856

JSON object : View

Products Affected

No product.

CWE

No CWE.

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