Bug 2395292 (CVE-2022-50276)

Summary: CVE-2022-50276 kernel: power: supply: fix null pointer dereferencing in power_supply_get_battery_info
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedKeywords: Security
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OS: Linux   
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Description OSIDB Bzimport 2025-09-15 15:05:48 UTC 
In the Linux kernel, the following vulnerability has been resolved:

power: supply: fix null pointer dereferencing in power_supply_get_battery_info

when kmalloc() fail to allocate memory in kasprintf(), propname
will be NULL, strcmp() called by of_get_property() will cause
null pointer dereference.

So return ENOMEM if kasprintf() return NULL pointer.
Comment 1 Jon Moroney 2025-09-15 23:44:29 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025091506-CVE-2022-50276-e9a6@gregkh/T