r0 = mmap$IORING_OFF_CQ_RING(&(0x7f0000ffe000/0x2000)=nil, 0x2000, 0x1000002, 0x80071, 0xffffffffffffffff, 0x8000000) syz_io_uring_complete(r0) madvise(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x3)