CVE-2026-89627

CVE-2026-89627: vulnerability in Linux

HID: roccat: free buffered reports when destroying device

Published · Updated

3Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackepss 0.2%
exploitation probability
0.2%top 90% of all CVEs
observed exploitation
nono source reports it
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 products
Linux · Linux
Related CVEs — Linux

In the same product, most dangerous first.

CVE-2024-53197HIGHALSA: usb-audio: Fix potential out-of-bound accesses for Extigy and Mbox devicesEPSS 4.1%KEVCVE-2026-31431HIGHcrypto: algif_aead - Revert to operating out-of-placeEPSS 3.4%KEVCVE-2024-53104HIGHmedia: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_formatEPSS 3.4%KEVCVE-2025-39682CRITICALtls: fix handling of zero-length records on the rx_listEPSS 2.9%KEVCVE-2024-36971HIGHnet: fix __dst_negative_advice() raceEPSS 2.7%KEVCVE-2024-53150HIGHALSA: usb-audio: Fix out of bounds reads when finding clock sourcesEPSS 1.4%KEV
References
https://git.kernel.org/stable/c/4cb3ff31d237ad1f515455c497ef07d7172d912bhttps://git.kernel.org/stable/c/690da9177e64bcfda2f4c0b5b8465178e4a236d8https://git.kernel.org/stable/c/943b8dc2c6044c01e36395f51bb809a4b6bdfd22https://git.kernel.org/stable/c/b3cc411daa50b39ba5706492a80a5a0804d9c85fhttps://git.kernel.org/stable/c/bbff0ccbff360a5498075525005f6a913239a3d7https://git.kernel.org/stable/c/cebb20b9a29cfc90bf56e54337333084f85a69ddhttps://git.kernel.org/stable/c/da00eac19feef209c9591e48c860afc2014603behttps://git.kernel.org/stable/c/fbb5a60f5c31b5625f0d89a79912fbcb2559289b