usb: gadget: f_midi: prefer strscpy() over strcpy()

The function strcpy() is depreciated and potentially unsafe. It performs
no bounds checking on the destination buffer. This could result in
linear overflows beyond the end of the buffer, leading to all kinds of
misbehaviors. The safe replacement is strscpy() [1].

this fixes checkpatch warning:
    WARNING: Prefer strscpy over strcpy

Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strcpy [1]
Signed-off-by: Abdul Rahim <abdul.rahim@myyahoo.com>
Reviewed-by: Kees Cook <kees@kernel.org>
Link: https://lore.kernel.org/r/20240914231756.503521-1-abdul.rahim@myyahoo.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Abdul Rahim 2024-09-15 04:47:49 +05:30 committed by Greg Kroah-Hartman
parent 8237546975
commit 86ebc1fe90

View File

@ -819,9 +819,9 @@ static int f_midi_register_card(struct f_midi *midi)
goto fail;
}
strcpy(card->driver, f_midi_longname);
strcpy(card->longname, f_midi_longname);
strcpy(card->shortname, f_midi_shortname);
strscpy(card->driver, f_midi_longname);
strscpy(card->longname, f_midi_longname);
strscpy(card->shortname, f_midi_shortname);
/* Set up rawmidi */
snd_component_add(card, "MIDI");
@ -833,7 +833,7 @@ static int f_midi_register_card(struct f_midi *midi)
}
midi->rmidi = rmidi;
midi->in_last_port = 0;
strcpy(rmidi->name, card->shortname);
strscpy(rmidi->name, card->shortname);
rmidi->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT |
SNDRV_RAWMIDI_INFO_INPUT |
SNDRV_RAWMIDI_INFO_DUPLEX;