Bug 2524479 (CVE-2026-80573) - CVE-2026-80573 kernel: Input: iforce - validate input packet lengths
Summary: CVE-2026-80573 kernel: Input: iforce - validate input packet lengths
Keywords:
Status: NEW
Alias: CVE-2026-80573
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-26 14:58 UTC by OSIDB Bzimport
Modified: 2026-08-27 11:16 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


Attachments (Terms of Use)

Description OSIDB Bzimport 2026-08-26 14:58:29 UTC
In the Linux kernel, the following vulnerability has been resolved:

Input: iforce - validate input packet lengths

iforce_process_packet() reads fixed fields from joystick, wheel and
status packets without first checking their lengths. In particular, the
shared hats-and-buttons helper unconditionally reads data[6]. The status
tail is a sequence of 16-bit effect addresses, but an incomplete final
address is also consumed. A successful zero-length USB URB additionally
reads the packet ID before the common parser is called.

Reject the zero-length USB transfer, require the seven-byte joystick and
wheel prefixes and the two-byte status prefix, and consume only complete
status-tail addresses.


Note You need to log in before you can comment on or make changes to this bug.