CVE-2026-89627

HID: roccat: free buffered reports when destroying device

State: Published
Severity: Not scored
Published: Sep 11, 2026
Updated: Oct 19, 2026
Reserved: Sep 11, 2026

Description

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

HID: roccat: free buffered reports when destroying device

roccat_report_event() duplicates each report with kmemdup() and stores the allocation in a circular-buffer slot. The allocation is released only when that slot is reused.

The device destruction paths free struct roccat_device without releasing reports still stored in cbuf[]. This makes those allocations unreachable and leaks up to ROCCAT_CBUF_SIZE report buffers per device.

Add a small destructor that frees every buffered report before freeing the device, and use it in both paths that can destroy a registered device.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 to before cebb20b9a29cfc90bf56e54337333084f85a69ddAffected 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 to before 690da9177e64bcfda2f4c0b5b8465178e4a236d8Affected 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 to before b3cc411daa50b39ba5706492a80a5a0804d9c85fAffected 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 to before 4cb3ff31d237ad1f515455c497ef07d7172d912bAffected 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 to before 943b8dc2c6044c01e36395f51bb809a4b6bdfd22Affected 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 to before da00eac19feef209c9591e48c860afc2014603beAffected 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 to before fbb5a60f5c31b5625f0d89a79912fbcb2559289bAffected 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 to before bbff0ccbff360a5498075525005f6a913239a3d7Affected
LinuxLinux	2.6.35Affected before 2.6.35Not affected 5.10.270 through 5.10.Not affected 5.15.221 through 5.15.Not affected 6.1.188 through 6.1.Not affected 6.6.157 through 6.6.Not affected 6.12.109 through 6.12.Not affected 6.18.50 through 6.18.Not affected 7.2.4 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 to before cebb20b9a29cfc90bf56e54337333084f85a69ddAffected
206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 to before 690da9177e64bcfda2f4c0b5b8465178e4a236d8Affected
206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 to before b3cc411daa50b39ba5706492a80a5a0804d9c85fAffected
206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 to before 4cb3ff31d237ad1f515455c497ef07d7172d912bAffected
206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 to before 943b8dc2c6044c01e36395f51bb809a4b6bdfd22Affected
206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 to before da00eac19feef209c9591e48c860afc2014603beAffected
206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 to before fbb5a60f5c31b5625f0d89a79912fbcb2559289bAffected
206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 to before bbff0ccbff360a5498075525005f6a913239a3d7Affected

LinuxLinux

2.6.35Affected
before 2.6.35Not affected
5.10.270 through 5.10.*Not affected
5.15.221 through 5.15.*Not affected
6.1.188 through 6.1.*Not affected
6.6.157 through 6.6.*Not affected
6.12.109 through 6.12.*Not affected
6.18.50 through 6.18.*Not affected
7.2.4 through 7.2.*Not affected
7.3 and laterNot affected

References

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