r0 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='loginuid\x00')
pwritev(r0, &(0x7f0000000000)=[{&(0x7f0000000080)='5', 0x1}, {&(0x7f00000000c0)='C', 0x1}], 0x2, 0x0, 0x0)