r0 = openat$zero(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
mmap$IORING_OFF_CQ_RING(&(0x7f0000ffe000/0x2000)=nil, 0x2000, 0x0, 0x12, r0, 0x8000000)