CVE-2022-49756

CVSS 3.1 Score 5.5 of 10 (medium)

Details

Published Mar 27, 2025
Updated: Apr 14, 2025
CWE ID 476

Summary

CVE-2022-49756 is a null-pointer dereference vulnerability affecting the Linux kernel's USB driver for Sunplus devices. The issue lies within the function sp_usb_phy_probe(), which calls platform_get_resource_byname() to retrieve a memory resource. If this call fails and returns NULL, devm_ioremap() uses the supposed memory start address, leading to a null-pointer dereference. By checking the return value of platform_get_resource_byname(), this vulnerability can be mitigated.

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