r0 = openat$binderfs(0xffffffffffffff9c, &(0x7f0000000000)='./binderfs2/custom0\x00', 0x0, 0x0)
mmap$binder(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x11, r0, 0x20)
msgsnd(0x0, &(0x7f0000000cc0)={0x3}, 0x8, 0x0)