socket$inet6_udp(0xa, 0x2, 0x0)
r0 = syz_io_uring_setup(0x5, &(0x7f00000002c0)={0x0, 0x0, 0x1}, &(0x7f0000ffa000/0x4000)=nil, &(0x7f00000b0000)=nil, &(0x7f0000000280)=<r1=>0x0, &(0x7f0000000540)=<r2=>0x0)
syz_io_uring_submit(r1, r2, &(0x7f00000000c0)=@IORING_OP_FALLOCATE={0x11, 0x0, 0x0, @fd_index}, 0x0)
io_uring_enter(r0, 0x5c33, 0x0, 0x0, 0x0, 0x0)