Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: hwmon: (corsair-cpro) Create debugfs entries after hwmon registration ccp_debugfs_init() registers debugfs files whose private data is the devm allocated ccp. It runs before hwmon_device_register_with_info(), so when that registration fails, ccp_probe() returns with the files still in place. The HID core then frees ccp, and ccp_remove() is not called for a failed probe, so nothing removes them later either. Reading one of the files dereferences the freed pointer. Create the debugfs entries only after the hwmon device has been registered, so no failing path can leave them behind. The two version queries stay where they are. They send USB commands without holding ccp->mutex, which is only safe as long as nothing else can call send_usb_cmd(); once the hwmon device is registered its callbacks can do so concurrently. Only the debugfs creation moves, and it is told which queries succeeded.
References
- https://git.kernel.org/stable/c/508baf1713f32f287bfb4f85d759403ec8ba35a3
- https://git.kernel.org/stable/c/6c5d333216a937044acd3336e9ec7e30ff2eaee4
- https://git.kernel.org/stable/c/a58a966a440071bb877ef62535d1016952f83101
- https://git.kernel.org/stable/c/fdfe17cb865715aad30328678344eb79889207ab
FAQ
What is CVE-2026-97968?
CVE-2026-97968 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: hwmon: (corsair-cpro) Create debugfs entries after hwmon registration ccp_debugfs_init() registers debugfs files whose private dat...
How severe is CVE-2026-97968?
CVSS scoring is not yet available for CVE-2026-97968. Check NVD for updates.
Is there a patch for CVE-2026-97968?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.