Geert Uytterhoeven 5b984e538b ALSA: firewire-tascam: Fix integer overflow in midi_port_work() ... commit 9f65df9c589f249435255da37a5dd11f1bc86f4d upstream. As snd_fw_async_midi_port.consume_bytes is unsigned int, and NSEC_PER_SEC is 1000000000L, the second multiplication in port->consume_bytes * 8 * NSEC_PER_SEC / 31250 always overflows on 32-bit platforms, truncating the result. Fix this by precalculating "NSEC_PER_SEC / 31250", which is an integer constant. Note that this assumes port->consume_bytes <= 16777. Fixes: 531f471834 ("ALSA: firewire-lib/firewire-tascam: localize async midi port") Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20210111130251.361335-3-geert+renesas@glider.be Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-01-19 18:27:33 +01:00
..
amdtp-tascam.c
Makefile
tascam-hwdep.c
tascam-midi.c
tascam-pcm.c
tascam-proc.c
tascam-stream.c
tascam-transaction.c	ALSA: firewire-tascam: Fix integer overflow in midi_port_work()	2021-01-19 18:27:33 +01:00
tascam.c	ALSA; firewire-tascam: exclude Tascam FE-8 from detection	2020-08-23 10:00:34 +02:00
tascam.h