ioctl$SNAPSHOT_PLATFORM_SUPPORT(0xffffffffffffffff, 0x330f, 0x0)
r0 = syz_open_dev$tty20(0xc, 0x4, 0x0)
r1 = dup(r0)
ioctl$TIOCVHANGUP(r1, 0x5437, 0x0)
read$snapshot(r1, 0x0, 0x0)