r0 = syz_io_uring_setup(0x6757, &(0x7f00000000c0), &(0x7f0000ffb000/0x1000)=nil, &(0x7f0000ffa000/0x4000)=nil, &(0x7f00000003c0), &(0x7f00000001c0))
io_uring_register$IORING_UNREGISTER_BUFFERS(r0, 0x300, 0x0, 0x0)