r0 = syz_open_procfs(0x0, &(0x7f00000000c0)='pagemap\x00')
readv(r0, &(0x7f0000002a80)=[{0x0, 0x7f4a19b80000}, {&(0x7f0000000840)=""/4096, 0x1000}], 0x2)