CVEvulnerability
CVE-2026-98502
- Status
- Received
- Published
- 2026-10-18
- Last modified
- 2026-10-21
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
HID: alps: unregister DualPoint Stick input device on remove
alps_input_configured() allocates a second input device ("DualPoint
Stick") with input_allocate_device() and registers it, but the
alps_driver struct has no .remove handler and input2 is not tracked in
hdev->inputs. The default remove path (hid_hw_stop -> hidinput_disconnect)
only iterates hdev->inputs, so input2 is never unregistered and leaks
on every device removal.
Add a .remove handler that stops the device first (preventing URB
callbacks from touching input2 during teardown) and then unregisters
input2.
References
- https://git.kernel.org/stable/c/1170ebfba562b3938ff7749b2e42e4420f19436d git.kernel.org
- https://git.kernel.org/stable/c/978e801750c7b0859e87eae619f7d88fcd88333e git.kernel.org
- https://git.kernel.org/stable/c/aa4845a710ae9fee6a3831f5c338904cea77c3aa git.kernel.org
- https://git.kernel.org/stable/c/aa9dde93e05a837645fdfd577eea71f0733f0694 git.kernel.org
- https://git.kernel.org/stable/c/bd9571812d02242b6bba2637fba924a78a5c6fa8 git.kernel.org