Bug 2464446 (CVE-2026-43047) - CVE-2026-43047 kernel: HID: multitouch: Check to ensure report responses match the request
Summary: CVE-2026-43047 kernel: HID: multitouch: Check to ensure report responses matc...
Keywords:
Status: NEW
Alias: CVE-2026-43047
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-01 15:07 UTC by OSIDB Bzimport
Modified: 2026-05-01 18:30 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-05-01 15:07:16 UTC
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.


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