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Takashi Iwai 00a8606780 ALSA: pcm: oss: Fix negative period/buffer sizes 
commit 9d2479c960875ca1239bcb899f386970c13d9cfe upstream.

The period size calculation in OSS layer may receive a negative value
as an error, but the code there assumes only the positive values and
handle them with size_t.  Due to that, a too big value may be passed
to the lower layers.

This patch changes the code to handle with ssize_t and adds the proper
error checks appropriately.

Reported-by: syzbot+bb348e9f9a954d42746f@syzkaller.appspotmail.com
Reported-by: Bixuan Cui <cuibixuan@linux.alibaba.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/1638270978-42412-1-git-send-email-cuibixuan@linux.alibaba.com
Link: https://lore.kernel.org/r/20211201073606.11660-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-12-14 10:57:12 +01:00
..
ac97
bus: Make remove callback return void
2021-07-21 11:53:42 +02:00
aoa
Kbuild updates for v5.15
2021-09-03 15:33:47 -07:00
arm
ALSA: pxa2xx: Use managed PCM buffer allocation
2021-08-04 08:08:21 +02:00
atmel
…
core
ALSA: pcm: oss: Fix negative period/buffer sizes
2021-12-14 10:57:12 +01:00
drivers
ALSA: pcsp: Make hrtimer forwarding more robust
2021-09-28 10:58:08 +02:00
firewire
ALSA: oxfw: fix functional regression for Mackie Onyx 1640i in v5.14 or later
2021-11-18 19:16:57 +01:00
hda
ALSA: intel-dsp-config: add quirk for CML devices based on ES8336 codec
2021-12-08 09:04:49 +01:00
i2c
ALSA: i2c: tea6330t: Remove redundant initialization of variable err
2021-06-12 09:32:14 +02:00
isa
ALSA: gus: fix null pointer dereference on pointer block
2021-11-25 09:48:30 +01:00
mips
ALSA: n64: check return value after calling platform_get_resource()
2021-06-12 09:31:13 +02:00
oss
sound/oss/dmasound: Remove superfluous "break"
2021-05-27 08:24:23 +02:00
parisc
parisc architecture updates for kernel 5.15:
2021-09-02 13:16:00 -07:00
pci
ALSA: hda/realtek: Fix quirk for TongFang PHxTxX1
2021-12-14 10:57:12 +01:00
pcmcia
ALSA: vx: Manage vx_core object with devres
2021-07-19 16:17:09 +02:00
ppc
ALSA: ppc: fix error return code in snd_pmac_probe()
2021-06-16 08:52:29 +02:00
sh
module: remove never implemented MODULE_SUPPORTED_DEVICE
2021-03-17 13:16:18 -07:00
soc
ASoC: rk817: Add module alias for rk817-codec
2021-12-08 09:04:52 +01:00
sparc
ALSA: sparc: Fix assignment in if condition
2021-06-09 17:30:29 +02:00
spi
…
synth
ALSA: synth: missing check for possible NULL after the call to kstrdup
2021-11-18 19:15:55 +01:00
usb
ALSA: usb-audio: Don't start stream for capture at prepare
2021-12-08 09:04:37 +01:00
virtio
ALSA: virtio: fix kernel-doc
2021-04-27 08:39:39 +02:00
x86
ALSA: memalloc: Correctly name as WC
2021-08-04 08:07:58 +02:00
xen
module: remove never implemented MODULE_SUPPORTED_DEVICE
2021-03-17 13:16:18 -07:00
ac97_bus.c
…
Kconfig
ALSA: virtio: add virtio sound driver
2021-03-07 09:07:16 +01:00
last.c
…
Makefile
ALSA: virtio: add virtio sound driver
2021-03-07 09:07:16 +01:00
sound_core.c
…