CVE-2024-26716

In the Linux kernel, the following vulnerability has been resolved: usb: core: Prevent null pointer dereference in update_port_device_state Currently, the function update_port_device_state gets the usb_hub from udev->parent by calling usb_hub_to_struct_hub. However, in case the actconfig or the maxchild is 0, the usb_hub would be NULL and upon further accessing to get port_dev would result in null pointer dereference. Fix this by introducing an if check after the usb_hub is populated.

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/12783c0b9e2c7915a50d5ec829630ff2da50472c	Patch
https://git.kernel.org/stable/c/465b545d1d7ef282192ddd4439b08279bdb13f6f	Patch
https://git.kernel.org/stable/c/ed85777c640cf9e6920bb1b60ed8cd48e1f4d873	Patch
https://git.kernel.org/stable/c/12783c0b9e2c7915a50d5ec829630ff2da50472c	Patch
https://git.kernel.org/stable/c/465b545d1d7ef282192ddd4439b08279bdb13f6f	Patch
https://git.kernel.org/stable/c/ed85777c640cf9e6920bb1b60ed8cd48e1f4d873	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.8:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.8:rc2::::::

History

No history.

Information

Published : 2024-04-03 15:15

Updated : 2025-01-07 20:24

NVD link : CVE-2024-26716

Mitre link : CVE-2024-26716

CVE.ORG link : CVE-2024-26716

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

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