r0 = syz_open_procfs(0x0, &(0x7f0000000040)='task\x00') r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000140)='ns\x00') renameat(r1, &(0x7f0000000080)='./mnt\x00', r0, &(0x7f00000001c0)='./mnt\x00')