CVE-2026-89627
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.
Affected versions
Linux kernel versions
2.6.35
and later are affected. Fixed in
5.10.270,
5.15.221,
6.1.188,
6.6.157,
6.12.109,
6.18.50,
7.2.4,
7.3-rc1
and their respective stable series.
References
8 totalFrequently asked questions
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What is CVE-2026-89627?
CVE-2026-89627 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 2.6.35 onward and has been patched in 5.10.270, 5.15.221, 6.1.188 and others. CVE-2026-89627 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-89627?
Yes. CVE-2026-89627 has been patched. Fixed versions include 5.10.270, 5.15.221, 6.1.188 and others. If you are running Linux kernel 2.6.35 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-89627 actively exploited?
No. CVE-2026-89627 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.