CVE-2022-49962

In the Linux kernel, the following vulnerability has been resolved: xhci: Fix null pointer dereference in remove if xHC has only one roothub The remove path in xhci platform driver tries to remove and put both main and shared hcds even if only a main hcd exists (one roothub) This causes a null pointer dereference in reboot for those controllers. Check that the shared_hcd exists before trying to remove it.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/4a593a62a9e3a25ab4bc37f612e4edec144f7f43	Patch
https://git.kernel.org/stable/c/7081b2f34ff291ada012bd6abacaf7d51c4cf73f	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.0:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.0:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.0:rc3::::::

History

14 Nov 2025, 18:08

Type	Values Removed	Values Added
CWE		CWE-476
First Time		Linux linux Kernel Linux
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.5
CPE		cpe:2.3:o:linux:linux_kernel:6.0:rc1:::::: cpe:2.3:o:linux:linux_kernel:::::::: cpe:2.3:o:linux:linux_kernel:6.0:rc2:::::: cpe:2.3:o:linux:linux_kernel:6.0:rc3::::::
References	~~() https://git.kernel.org/stable/c/4a593a62a9e3a25ab4bc37f612e4edec144f7f43 -~~	() https://git.kernel.org/stable/c/4a593a62a9e3a25ab4bc37f612e4edec144f7f43 - Patch
References	~~() https://git.kernel.org/stable/c/7081b2f34ff291ada012bd6abacaf7d51c4cf73f -~~	() https://git.kernel.org/stable/c/7081b2f34ff291ada012bd6abacaf7d51c4cf73f - Patch

Information

Published : 2025-06-18 11:15

Updated : 2025-11-14 18:08

NVD link : CVE-2022-49962

Mitre link : CVE-2022-49962

CVE.ORG link : CVE-2022-49962

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

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