HID: roccat: bound device-supplied profile index

Summary

In the Linux kernel, the following vulnerability has been resolved: HID: roccat: bound device-supplied profile index kone_keep_values_up_to_date() and kone_profile_activated() use an 8-bit, device-supplied profile value as an index into the 5-element kone->profiles[] array without a range check. A malicious USB device claiming the Roccat Kone id can send a switch-profile event (or a startup_profile read at probe) with an out-of-range value and make the driver read out of bounds; the result is exposed via the actual_dpi sysfs attribute. Reject out-of-range indices in both paths. This was found with static analysis and confirmed with the KUnit test added in the following patch (KASAN: slab-out-of-bounds).

Timeline

1. Sep 17, 2026, 4:12 PM UTCCVE published
2. Oct 19, 2026, 9:07 AM UTCRecord last updated

Affected versions

• Linux Linux

  From 14bf62cde79423a02a590e02664ed29a36facec1 · fixed in 686e5c3bd378933b4e795fcc7d40c5aad358eaaa; From 14bf62cde79423a02a590e02664ed29a36facec1 · fixed in 0a139188a7ce4baab7acc5d60e0d1c8657f9b4d4; From 14bf62cde79423a02a590e02664ed29a36facec1 · fixed in 67d7851f113fd0205dd27416d3c47ab32b176097; From 14bf62cde79423a02a590e02664ed29a36facec1 · fixed in 4b29be4b23bc28f59def1485702887e395256e11; From 14bf62cde79423a02a590e02664ed29a36facec1 · fixed in 579c78c8c317ecff8b6b820c227c93e6ec4e565d; From 14bf62cde79423a02a590e02664ed29a36facec1 · fixed in 635914c60da26a9892f27ffb5edcc922a10effab; From 14bf62cde79423a02a590e02664ed29a36facec1 · fixed in 99330b12376c3373ab555c24bc797630f03b81a2; From 14bf62cde79423a02a590e02664ed29a36facec1 · fixed in 43fae42628a8c10fa8981773d7ec9f1a367821a7

• Linux Linux

  2.6.35

• KernelLinux

  From 2.6.35 · fixed in 5.10.270; From 5.11.0 · fixed in 5.15.221; From 5.16.0 · fixed in 6.1.188; From 6.2.0 · fixed in 6.6.157; From 6.7.0 · fixed in 6.12.110; From 6.13.0 · fixed in 6.18.52; From 6.19.0 · fixed in 7.2.6

References 8