CVE-2026-97968hwmon: (corsair-cpro) Create debugfs entries after hwmon registration
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 25, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 5997eb60f896830126bc1783465b678b110e2fdd builds before 6c5d333216a937044acd3336e9ec7e30ff2eaee4; from 5997eb60f896830126bc1783465b678b110e2fdd before a58a966a440071bb877ef62535d1016952f83101; from 5997eb60f896830126bc1783465b678b110e2fdd before fdfe17cb865715aad30328678344eb79889207ab; 5997eb60f896830126bc1783465b678b110e2fdd builds before 508baf1713f32f287bfb4f85d759403ec8ba35a3 | CNA record |
References
- https://git.kernel.org/stable/c/6c5d333216a937044acd3336e9ec7e30ff2eaee4
- https://git.kernel.org/stable/c/a58a966a440071bb877ef62535d1016952f83101
- https://git.kernel.org/stable/c/fdfe17cb865715aad30328678344eb79889207ab
- https://git.kernel.org/stable/c/508baf1713f32f287bfb4f85d759403ec8ba35a3
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.