Medium [CVE-2026-68358] (nzxt-kraken3) Stop device IO before calling hid_hw_stop
This medium-severity Red Hat Linux advisory covers CVE-2026-68358 affecting Red Hat Enterprise Linux for NVIDIA 26, Red Hat package: kernel.
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Summary
In the Linux kernel, the following vulnerability has been resolved: hwmon: (nzxt-kraken3) Stop device IO before calling hid_hw_stop Calling hid_hw_stop() does not stop the device IO. This results in a race condition between hid_input_report() and the point immediately following the execution of hid_device_io_start() within the driver probe function.
If the probe operation fails after "io start" has been initiated, this race condition will result in a UAF vulnerability. Fix the problem by calling hid_device_io_stop() before calling hid_hw_stop().
A race condition exists where the `hid_hw_stop()` function does not stop device input/output (IO). This can lead to a use-after-free (UAF) vulnerability if a device probe operation fails after IO has been initiated.
This vulnerability could allow a local attacker to potentially cause a denial of service or escalate privileges. This issue affects NZXT Kraken3 AIO coolers (nzxt-kraken3 hwmon).
HID I/O not stopped before hid_hw_stop on probe failure can UAF. Systems without this hardware are not affected.
Red Hat severity: Moderate — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-825.
Affected Red Hat products: Red Hat Enterprise Linux for NVIDIA 26.
Affected products named by the advisory: Red Hat package: kernel.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 2 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 2 days ago·verify at source
Mitigation checklist
- To mitigate this issue, prevent the nzxt_kraken3 module from loading. See https://access.redhat.com/solutions/41278 for instructions.
Official advisory · high-confidence parse· fetched 2 days ago·verify at source
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