CVE-2022-50276
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-15

Last updated on: 2025-12-03

Assigner: kernel.org

Description
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.
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Meta Information
Published
2025-09-15
Last Modified
2025-12-03
Generated
2026-06-16
AI Q&A
2025-09-15
EPSS Evaluated
2026-06-14
NVD
CVE-2022-50276
Affected Vendors & Products
Showing 5 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 5.0 (inc) to 5.4.229 (exc)
linux linux_kernel From 5.5 (inc) to 5.10.163 (exc)
linux linux_kernel From 5.11 (inc) to 5.15.86 (exc)
linux linux_kernel From 5.16 (inc) to 6.0.16 (exc)
linux linux_kernel From 6.1 (inc) to 6.1.2 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-476 The product dereferences a pointer that it expects to be valid but is NULL.
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Executive Summary

This vulnerability occurs in the Linux kernel's power supply subsystem. When the function kmalloc() fails to allocate memory in kasprintf(), the variable propname becomes NULL. Subsequently, strcmp() is called by of_get_property() with this NULL pointer, causing a null pointer dereference, which can lead to a kernel crash or instability. The fix involves returning an error (ENOMEM) if kasprintf() returns a NULL pointer to prevent this issue.

Impact Analysis

This vulnerability can cause the Linux kernel to crash or become unstable due to a null pointer dereference. This may lead to denial of service or system instability, affecting the availability and reliability of systems running vulnerable kernel versions.

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