r0 = syz_open_procfs(0x0, &(0x7f0000000040)='pagemap\x00')
r1 = signalfd(0xffffffffffffffff, &(0x7f0000000300), 0x8)
poll(&(0x7f0000000100)=[{r1}], 0x1, 0x7f)
dup2(r0, r1)