CVE 8.1 HIGH

HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq_CVE-2026-43051

8.1 / 10
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Description

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

HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq

The wacom_intuos_bt_irq() function processes Bluetooth HID reports
without sufficient bounds checking. A maliciously crafted short report
can trigger an out-of-bounds read when copying data into the wacom
structure.

Specifically, report 0x03 requires at least 22 bytes to safely read
the processed data and battery status, while report 0x04 (which
falls through to 0x03) requires 32 bytes.

Add explicit length checks for these report IDs and log a warning if
a short report is received.

Basic Information

ID CVE-2026-43051
Source Linux
Published May 1, 2026 at 14:15
Modified May 3, 2026 at 05:46

Affected Product

Vendor Linux
Product Linux
Version 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a
Affected Versions Linux Linux 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a
Linux Linux 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a
Linux Linux 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a
Linux Linux 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a
Linux Linux 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a
Linux Linux 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a
Linux Linux 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a
Linux Linux 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a
Linux Linux 3.3

References

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