CVE-2026-89627

HID: roccat: free buffered reports when destroying device

N/A
Published: September 11, 2026 at 07:45 PM UTC
Updated: October 19, 2026 at 09:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.6.35206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378
Vendor states this is fixed in 4cb3ff31d237ad1f515455c497ef07d7172d912b (fixed)
Vendor states this is fixed in 690da9177e64bcfda2f4c0b5b8465178e4a236d8 (fixed)
Vendor states this is fixed in 943b8dc2c6044c01e36395f51bb809a4b6bdfd22 (fixed)
Vendor states this is fixed in b3cc411daa50b39ba5706492a80a5a0804d9c85f (fixed)
Vendor states this is fixed in bbff0ccbff360a5498075525005f6a913239a3d7 (fixed)
Vendor states this is fixed in cebb20b9a29cfc90bf56e54337333084f85a69dd (fixed)
Vendor states this is fixed in da00eac19feef209c9591e48c860afc2014603be (fixed)
Vendor states this is fixed in fbb5a60f5c31b5625f0d89a79912fbcb2559289b (fixed)
Vendor states this is fixed in 2.6.35 (unaffected)
Vendor states this is fixed in 5.10.270 (unaffected)
Vendor states this is fixed in 5.15.221 (unaffected)
Vendor states this is fixed in 6.1.188 (unaffected)
Vendor states this is fixed in 6.12.109 (unaffected)
Vendor states this is fixed in 6.18.50 (unaffected)
Vendor states this is fixed in 6.6.157 (unaffected)
Vendor states this is fixed in 7.2.4 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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