CVE-2022-49756

phy: usb: sunplus: Fix potential null-ptr-deref in sp_usb_phy_probe()

State: Published
Severity: 5.5 Medium
Published: Mar 27, 2025
Updated: May 11, 2026
Reserved: Mar 27, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

phy: usb: sunplus: Fix potential null-ptr-deref in sp_usb_phy_probe()

sp_usb_phy_probe() will call platform_get_resource_byname() that may fail and return NULL. devm_ioremap() will use usbphy->moon4_res_mem->start as input, which may causes null-ptr-deref. Check the ret value of platform_get_resource_byname() to avoid the null-ptr-deref.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-476 NULL Pointer Dereference

Affected Products

Product	Versions
LinuxLinux	99d9ccd97385208b78b3d88e756451f4b70119fc to before d838b5c99bcecd593b4710a93fce8fdbf122395bAffected 99d9ccd97385208b78b3d88e756451f4b70119fc to before 17eee264ef386ef30a69dd70e36f29893b85c170Affected
LinuxLinux	6.1Affected before 6.1Not affected 6.1.9 through 6.1.*Not affected 6.2 and laterNot affected

References

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