HID: roccat: free buffered reports when destroying device (CVE-2026-89627) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-89627

HID: roccat: free buffered reports when destroying device

Answer in brief

CVE-2026-89627 records a Unknown severity vulnerability in HID: roccat: free buffered reports when destroying device. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 11, 2026Updated Sep 11, 2026Source checked Sep 11, 2026First seen by HOL Sep 11, 2026Material review Sep 11, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 <943b8dc2c6044c01e36395f51bb809a4b6bdfd22 \|\| >=206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 <da00eac19feef209c9591e48c860afc2014603be \|\| >=206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 <fbb5a60f5c31b5625f0d89a79912fbcb2559289b \|\| >=206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378 <bbff0ccbff360a5498075525005f6a913239a3d7	943b8dc2c6044c01e36395f51bb809a4b6bdfd22, da00eac19feef209c9591e48c860afc2014603be, fbb5a60f5c31b5625f0d89a79912fbcb2559289b, bbff0ccbff360a5498075525005f6a913239a3d7
Linux/Linuxgeneric	2.6.35	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 943b8dc2c6044c01e36395f51bb809a4b6bdfd22 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 11, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.