CVE-2023-53787: regulator: da9063: fix null pointer deref with partial DT config

Severity: unknown
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-12-09 · updated 2026-06-17

Description

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.

Affected products

Linux kernel: 6.4 — fixed in 6.5

How to fix

Upgrade to a fixed version: Linux kernel 6.5. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/04a025b17d83d07924e5e32508c72536ab8f42d9
https://git.kernel.org/stable/c/98e2dd5f7a8be5cb2501a897e96910393a49f0ff

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