In the Linux kernel, the following vulnerability has been resolved: HID: roccat: free buffered reports when destroying device roccat_report_event()… (CVE-2026-89627)
A memory leak vulnerability in the Linux kernel's HID roccat driver was resolved by ensuring buffered reports are freed when a device is destroyed. The flaw caused allocations of duplicated reports to remain unreleased, leaking memory up to the size of the circular buffer per device.
AI Analysis
Technical Summary
The Linux kernel's HID roccat driver used roccat_report_event() to duplicate each report with kmemdup() and store it in a circular buffer. However, when a device was destroyed, the buffered reports stored in the circular buffer were not freed, causing a memory leak. The fix added a destructor to free all buffered reports before freeing the device structure, preventing memory from becoming unreachable and leaking.
Potential Impact
This vulnerability causes a memory leak in the kernel when roccat HID devices are destroyed. The leak can accumulate up to the size of the circular buffer per device, potentially impacting system stability or resource availability over time. There is no indication of direct code execution or privilege escalation from this issue.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to free buffered reports upon device destruction. Users should update to the kernel version that includes this fix. No additional mitigation steps are indicated.
In the Linux kernel, the following vulnerability has been resolved: HID: roccat: free buffered reports when destroying device roccat_report_event()… (CVE-2026-89627)
Description
A memory leak vulnerability in the Linux kernel's HID roccat driver was resolved by ensuring buffered reports are freed when a device is destroyed. The flaw caused allocations of duplicated reports to remain unreleased, leaking memory up to the size of the circular buffer per device.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel's HID roccat driver used roccat_report_event() to duplicate each report with kmemdup() and store it in a circular buffer. However, when a device was destroyed, the buffered reports stored in the circular buffer were not freed, causing a memory leak. The fix added a destructor to free all buffered reports before freeing the device structure, preventing memory from becoming unreachable and leaking.
Potential Impact
This vulnerability causes a memory leak in the kernel when roccat HID devices are destroyed. The leak can accumulate up to the size of the circular buffer per device, potentially impacting system stability or resource availability over time. There is no indication of direct code execution or privilege escalation from this issue.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to free buffered reports upon device destruction. Users should update to the kernel version that includes this fix. No additional mitigation steps are indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-v9hj-cvcm-4mj3
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-89627"]
Threat ID: 6aa4a00655bf5e2cf5a86649
Added to database: 09/12/2026, 00:42:46 UTC
Last enriched: 09/12/2026, 00:59:59 UTC
Last updated: 09/12/2026, 01:44:53 UTC
Views: 4
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