SB20260912151 - Memory leak in Linux kernel hid driver

Description

This security bulletin contains information about 1 vulnerability.

1) Memory leak (CVE-ID: CVE-2026-89627)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper memory release in the ROCcat HID device destruction paths when destroying a device with buffered reports stored in its circular buffer. A local user can trigger the affected device destruction path while buffered reports remain stored to cause a denial of service.

Up to ROCCAT_CBUF_SIZE report buffers per device can become unreachable.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/943b8dc2c6044c01e36395f51bb809a4b6bdfd22
• https://git.kernel.org/stable/c/bbff0ccbff360a5498075525005f6a913239a3d7
• https://git.kernel.org/stable/c/da00eac19feef209c9591e48c860afc2014603be
• https://git.kernel.org/stable/c/fbb5a60f5c31b5625f0d89a79912fbcb2559289b