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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedMay 6, 2026
First seenMay 6, 2026
Weakness typeCWE-476NULL pointer dereference
How to fix
Update
- linux linux_kernel5.10.252, 5.15.202, 6.1.165, 6.6.128, 6.12.75, 6.18.16, 6.19.6 or later
Patches
- git.kernel.org/stable/c/165912d4321c692321c02793068d30700b4e0f1a
- git.kernel.org/stable/c/17abd396548035fbd6179ee1a431bd75d49676a7
- git.kernel.org/stable/c/243e1165eb03aca97d87aafa9c3130593837a1c2
- git.kernel.org/stable/c/36c83c1329dd881f290f7df2feadfb9a21775108
- git.kernel.org/stable/c/5bbe266272d86c0657e8253600f3d5b74fb7b2ae
- git.kernel.org/stable/c/922bd3e498a4b8e445def6e6ffea2ad3682ad516
- git.kernel.org/stable/c/db5ba06e7af9325519a03e52fccf4a9e7c1fd9b2
- git.kernel.org/stable/c/f6a3860241fbb556fd72332fa31c5e787004413b
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 2.6.37 ≤ v < 5.10.252, 5.11 ≤ v < 5.15.202, 5.16 ≤ v < 6.1.165, 6.2 ≤ v < 6.6.128, 6.7 ≤ v < 6.12.75, 6.13 ≤ v < 6.18.16, 6.19 ≤ v < 6.19.6 | 5.10.252, 5.15.202, 6.1.165, 6.6.128, 6.12.75, 6.18.16, 6.19.6 |
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