Bug 2420284 (CVE-2023-53787)

Summary: CVE-2023-53787 kernel: regulator: da9063: fix null pointer deref with partial DT config
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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OS: Linux   
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Description OSIDB Bzimport 2025-12-09 01:05:47 UTC 
In the Linux kernel, the following vulnerability has been resolved:

regulator: da9063: fix null pointer deref with partial DT config

When some of the da9063 regulators do not have corresponding DT nodes
a null pointer dereference occurs on boot because such regulators have
no init_data causing the pointers calculated in
da9063_check_xvp_constraints() to be invalid.

Do not dereference them in this case.
Comment 1 Alexander B 2025-12-10 04:27:24 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025120940-CVE-2023-53787-2074@gregkh/T