r0 = syz_io_uring_setup(0x21, &(0x7f0000000080)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, &(0x7f0000ffb000/0x3000)=nil, &(0x7f00000b0000)=nil, &(0x7f0000000180)=<r1=>0x0, &(0x7f0000002a40)=<r2=>0x0)
r3 = eventfd(0x0)
io_uring_register$IORING_REGISTER_EVENTFD(r0, 0x4, &(0x7f0000000140)=r3, 0x1)
syz_io_uring_submit(r1, r2, &(0x7f0000000100)=@IORING_OP_READ_FIXED={0x4, 0x0, 0x0, @fd_index, 0x0, 0x0, 0x0, 0x30}, 0x0)
syz_io_uring_setup(0x0, 0x0, &(0x7f0000ffe000/0x2000)=nil, &(0x7f0000ffc000/0x3000)=nil, 0x0, 0x0)
io_uring_enter(r0, 0x76d3, 0x0, 0x0, 0x0, 0x0)