CVE-2026-80770

In the Linux kernel, the following vulnerability has been resolved:

HID: nintendo: stop device IO before hidhwstop on probe failure

nintendohidprobe() calls hiddeviceiostart() before joyconinit() and joyconledscreate(). If either fails, the error path jumps to errclose which calls hidhwclose()/hidhwstop() without first calling hiddeviceiostop().

hidhwstop() does not stop device IO, so hidinputreport() may still run and access driver data that is being torn down, resulting in a use-after-free.

Add an erriostop label that calls hiddeviceiostop() before hidhwclose(), and point the two post-iostart error paths at it.