r0 = syz_io_uring_setup(0x1081, &(0x7f0000000280)={0x0, 0x0, 0x40}, &(0x7f0000ffe000/0x1000)=nil, &(0x7f0000800000/0x800000)=nil, &(0x7f0000000180), &(0x7f00000003c0))
io_uring_register$IORING_UNREGISTER_BUFFERS(r0, 0xb, 0x20000300, 0x3d)