What’s Vulnerable › Vulnerabilities

CVE-2022-50276: power: supply: fix null pointer dereferencing in power_supply_get_battery_info

• Severity: medium (CVSS 5.5 v3.1)
• 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: 2025-09-15 · updated 2026-06-17
• Weakness: CWE-476

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.

Affected products

• Linux kernel: from 5.0 before 5.4.229; from 5.5 before 5.10.163; from 5.11 before 5.15.86; from 5.16 before 6.0.16; from 6.1 before 6.1.2 — fixed in 5.10.163, 5.15.86, 5.4.229, 6.0.16, 6.1.2

How to fix

Upgrade to a fixed version: Linux kernel 5.10.163, 5.15.86, 5.4.229, 6.0.16. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/104bb8a663451404a26331263ce5b96c34504049
• https://git.kernel.org/stable/c/279af90e65cbdb3e5c4519b0043324d7876bc5ec
• https://git.kernel.org/stable/c/5beadb55f4e36fafe5d6df5dcd5f85d803f3f134
• https://git.kernel.org/stable/c/8ea68b4e3fa9392ef9dae303abc8735a033c280f
• https://git.kernel.org/stable/c/b8131efb89d9f837c9244f900f0fc2699fd1181d
• https://git.kernel.org/stable/c/d21534ab4fd7883e1c8037a76671d4e8b6ea14cb

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