linux-stable/sound
Geert Uytterhoeven 548e4168e6 ALSA: firewire-tascam: Fix integer overflow in midi_port_work()
commit 9f65df9c58 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 18:26:19 +01:00
..
ac97 ALSA: ac97: Fix double free of ac97_codec_device 2019-07-23 14:16:11 +02:00
aoa ALSA: aoa: onyx: always initialize register read value 2019-07-29 09:21:39 +02:00
arm treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
atmel treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
core ALSA: pcm: Clear the full allocated memory at hw_params 2021-01-06 14:48:40 +01:00
drivers ALSA: opl3: fix infoleak in opl3 2020-07-16 08:16:42 +02:00
firewire ALSA: firewire-tascam: Fix integer overflow in midi_port_work() 2021-01-19 18:26:19 +01:00
hda ALSA: hda: prevent undefined shift in snd_hdac_ext_bus_get_link() 2020-11-18 19:20:18 +01:00
i2c ALSA: i2c: ak4xxx-adda: Fix a possible null pointer dereference in build_adc_controls() 2019-07-26 14:25:37 +02:00
isa ALSA: isa/wavefront: prevent out of bounds write in ioctl 2020-06-24 17:50:11 +02:00
mips
oss sound: dmasound_atari: Mark expected switch fall-through 2019-07-30 09:36:13 +02:00
parisc
pci ALSA: hda/realtek: Add two "Intel Reference board" SSID in the ALC256. 2021-01-12 20:16:23 +01:00
pcmcia
ppc ALSA: ps3: Remove Unneeded variable: "ret" 2019-07-10 11:53:31 +02:00
sh ALSA: sh: Fix compile warning wrt const 2020-02-24 08:36:42 +01:00
soc ASoC: Intel: fix error code cnl_set_dsp_D0() 2021-01-19 18:26:17 +01:00
sparc ALSA: sparc: Mark expected switch fall-throughs 2019-07-30 09:37:01 +02:00
spi treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
synth
usb ALSA: usb-audio: Fix UBSAN warnings for MIDI jacks 2021-01-12 20:16:20 +01:00
x86
xen ASoC: Updates for v5.3 2019-07-08 14:45:34 +02:00
ac97_bus.c
Kconfig
last.c
Makefile
sound_core.c sound: fix a memory leak bug 2019-08-08 08:18:32 +02:00