CVE-2026-43140

medium

Description

In the Linux kernel, the following vulnerability has been resolved: HID: magicmouse: Do not crash on missing msc->input Fake USB devices can send their own report descriptors for which the input_mapping() hook does not get called. In this case, msc->input stays NULL, leading to a crash at a later time. Detect this condition in the input_configured() hook and reject the device. This is not supposed to happen with actual magic mouse devices, but can be provoked by imposing as a magic mouse USB device.

References

https://git.kernel.org/stable/c/f6a3860241fbb556fd72332fa31c5e787004413b

https://git.kernel.org/stable/c/db5ba06e7af9325519a03e52fccf4a9e7c1fd9b2

https://git.kernel.org/stable/c/922bd3e498a4b8e445def6e6ffea2ad3682ad516

https://git.kernel.org/stable/c/5bbe266272d86c0657e8253600f3d5b74fb7b2ae

https://git.kernel.org/stable/c/36c83c1329dd881f290f7df2feadfb9a21775108

https://git.kernel.org/stable/c/243e1165eb03aca97d87aafa9c3130593837a1c2

https://git.kernel.org/stable/c/17abd396548035fbd6179ee1a431bd75d49676a7

https://git.kernel.org/stable/c/165912d4321c692321c02793068d30700b4e0f1a

Details

Source: Mitre, NVD

Published: 2026-05-06

Updated: 2026-05-06

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium