CVE-2026-43140

Summary

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.

Impact & exploitability

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: https://git.kernel.org/stable/c/165912d4321c692321c02793068d30700b4e0f1a ↗

Additional information

• NVD record
• 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