ioctl$FIONREAD(r0, 0x4b32, 0x0)
syz_open_dev$tty20(0xc, 0x4, 0x1)
ioctl$FIONREAD(0xffffffffffffffff, 0x4b32, 0x0)
recvmmsg(0xffffffffffffffff, 0x0, 0x0, 0x2, 0x0)
mmap(&(0x7f0000000000/0xc00000)=nil, 0xc00000, 0x2000003, 0x1f012, 0xffffffffffffffff, 0x0)
BUG: leak checking failed