=== DF-2273 fixed: strnlen bounds the scan ===
vt at (nulpos=0): ioctl=0 errno=0 (SUCCESS)
vt at (nulpos=32): ioctl=0 errno=0 (SUCCESS)
vt none (nulpos=-1): ioctl=0 errno=0 (SUCCESS)
vt far (nulpos=-2): ioctl=0 errno=0 (SUCCESS)
boundary: ioctl=0 errno=0 (Undefined error: 0)
STATS[cmd]: move_ccbs=528646 move_trips=0 cnt_race=0 res_calls=986844 strlen_calls=0 strlen_over33=0 strlen_max=0 strnlen_calls=5 strnlen_max=33 svt_calls=5 svt_vitf_nonspace=32 svt_vitf=41414141...
=== dmesg capture ===