CVE-2026-43047

Summary

In the Linux kernel, the following vulnerability has been resolved:

HID: multitouch: Check to ensure report responses match the request

It is possible for a malicious (or clumsy) device to respond to a specific report's feature request using a completely different report ID. This can cause confusion in the HID core resulting in nasty side-effects such as OOB writes.

Add a check to ensure that the report ID in the response, matches the one that was requested. If it doesn't, omit reporting the raw event and return early.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095 < 516da3f25cfe18643835af1cf09b0e9ffc36c383affected
LinuxLinux6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095 < a61163daf8a90b4a7ef154d5fc9c525f665734e3affected
LinuxLinux6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095 < 74c6015375d8b9bc1b1eb79f20636c8e894bcad7affected
LinuxLinux6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095 < c7a27bb4d0f6573ca0f9c7ef0b63291486239190affected
LinuxLinux6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095 < 6a4acd3e86fe5584050c213d95147eba33856033affected
LinuxLinux6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095 < 7f66fdbc077faed3b52519228d21d81979e92249affected
LinuxLinux6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095 < 2edc92f89eee328b5be5706b5d431bf90669e9c0affected
LinuxLinux6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095 < e716edafedad4952fe3a4a273d2e039a84e8681aaffected
LinuxLinuxfee906f035f0bd18ff12d84d58766c44a2ab0918affected
LinuxLinux4.3.6 < 4.4affected
LinuxLinux4.4affected
LinuxLinux0 < 4.4unaffected
LinuxLinux5.10.253 <= 5.10.*unaffected
LinuxLinux5.15.203 <= 5.15.*unaffected
LinuxLinux6.1.168 <= 6.1.*unaffected
LinuxLinux6.6.134 <= 6.6.*unaffected
LinuxLinux6.12.81 <= 6.12.*unaffected
LinuxLinux6.18.22 <= 6.18.*unaffected
LinuxLinux6.19.12 <= 6.19.*unaffected
LinuxLinux7.0 <= *unaffected

Weaknesses

References