CVEvulnerability
CVE-2026-97967
- Status
- Received
- Published
- 2026-09-25
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
hwmon: (corsair-cpro) Remove debugfs entries when probe fails
ccp_debugfs_init() registers debugfs files whose private data is the devm
allocated ccp. If hwmon_device_register_with_info() fails right after it,
ccp_probe() returns without removing them: the HID core then frees ccp,
and ccp_remove() is not called for a failed probe, so the files stay
behind. Reading one of them dereferences the freed pointer.
Remove the debugfs entries on that error path. debugfs_remove_recursive()
waits for readers already inside the show callbacks, so ccp is no longer
reachable through debugfs by the time probe returns.
References
- https://git.kernel.org/stable/c/4ee875c423c66c45d7ef7bbff403cd0e3971e0a2 git.kernel.org
- https://git.kernel.org/stable/c/a5de53b08cc319dadce6fb68d33749ea37962952 git.kernel.org
- https://git.kernel.org/stable/c/ae01aafd8214e48cb7eff11e92dfbf3778d52d9d git.kernel.org
- https://git.kernel.org/stable/c/fdc1bc23ff59ee308042342cefcb918d6efba409 git.kernel.org