r0 = mmap$IORING_OFF_SQ_RING(&(0x7f0000ffe000/0x1000)=nil, 0x1000, 0x4, 0x871, 0xffffffffffffffff, 0x0) syz_io_uring_submit(r0, 0x0, 0xfffffffffffffffe, 0x0) r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000080)='smaps\x00') lseek(r1, 0x1000000, 0x0)