recvmmsg(0xffffffffffffffff, &(0x7f0000004580)=[{{0x0, 0x0, &(0x7f0000003140)=[{0x0}], 0x1}}], 0x1, 0x0, 0x0) r0 = syz_open_dev$loop(&(0x7f0000002f80), 0x0, 0x0) ioctl$BLKGETSIZE64(r0, 0x80081272, &(0x7f0000003040))