r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
r1 = fcntl$dupfd(r0, 0x0, r0)
mmap$IORING_OFF_SQ_RING(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x0, 0x13, r1, 0x0)
msync(&(0x7f0000ffc000/0x3000)=nil, 0x3000, 0x4)