CVE-2026-43140
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.
Does this matter?
Lower severity and a low EPSS score (0.13%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.13% probability · 3th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/165912d4321c692321c02793068d30700b4e0f1aPatch
- https://git.kernel.org/stable/c/17abd396548035fbd6179ee1a431bd75d49676a7Patch
- https://git.kernel.org/stable/c/243e1165eb03aca97d87aafa9c3130593837a1c2Patch
- https://git.kernel.org/stable/c/36c83c1329dd881f290f7df2feadfb9a21775108Patch
- https://git.kernel.org/stable/c/5bbe266272d86c0657e8253600f3d5b74fb7b2aePatch
- https://git.kernel.org/stable/c/922bd3e498a4b8e445def6e6ffea2ad3682ad516Patch
- https://git.kernel.org/stable/c/db5ba06e7af9325519a03e52fccf4a9e7c1fd9b2Patch
- https://git.kernel.org/stable/c/f6a3860241fbb556fd72332fa31c5e787004413bPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.