CVE-2026-43047 PUBLISHED

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

Assigner: Linux
Reserved: 01.05.2026 Published: 01.05.2026 Updated: 02.05.2026

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.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095 to 516da3f25cfe18643835af1cf09b0e9ffc36c383 (excl.)
  • affected from 6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095 to a61163daf8a90b4a7ef154d5fc9c525f665734e3 (excl.)
  • affected from 6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095 to 74c6015375d8b9bc1b1eb79f20636c8e894bcad7 (excl.)
  • affected from 6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095 to c7a27bb4d0f6573ca0f9c7ef0b63291486239190 (excl.)
  • affected from 6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095 to 6a4acd3e86fe5584050c213d95147eba33856033 (excl.)
  • affected from 6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095 to 7f66fdbc077faed3b52519228d21d81979e92249 (excl.)
  • affected from 6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095 to 2edc92f89eee328b5be5706b5d431bf90669e9c0 (excl.)
  • affected from 6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095 to e716edafedad4952fe3a4a273d2e039a84e8681a (excl.)
  • Version fee906f035f0bd18ff12d84d58766c44a2ab0918 is affected
Vendor Linux
Product Linux
Versions Default: affected
  • Version 4.4 is affected
  • unaffected from 0 to 4.4 (excl.)
  • unaffected from 5.10.253 to 5.10.* (incl.)
  • unaffected from 5.15.203 to 5.15.* (incl.)
  • unaffected from 6.1.168 to 6.1.* (incl.)
  • unaffected from 6.6.134 to 6.6.* (incl.)
  • unaffected from 6.12.81 to 6.12.* (incl.)
  • unaffected from 6.18.22 to 6.18.* (incl.)
  • unaffected from 6.19.12 to 6.19.* (incl.)
  • unaffected from 7.0 to * (incl.)

References