kernel/linux.git/sound/core/oss/linear.c, branch v6.6.134

ALSA: pcm: oss: Avoid potential buffer overflows

2019-12-04T14:51:30+00:00

syzkaller reported an invalid access in PCM OSS read, and this seems to be an overflow of the internal buffer allocated for a plugin. Since the rate plugin adjusts its transfer size dynamically, the calculation for the chained plugin might be bigger than the given buffer size in some extreme cases, which lead to such an buffer overflow as caught by KASAN. Fix it by limiting the max transfer size properly by checking against the destination size in each plugin transfer callback. Reported-by: syzbot+f153bde47a62e0b05f83@syzkaller.appspotmail.com Cc: Link: https://lore.kernel.org/r/20191204144824.17801-1-tiwai@suse.de Signed-off-by: Takashi Iwai

ALSA: core: remove unused variables.

2011-05-26T06:19:04+00:00

Drop a few variables that are never read. Signed-off-by: Luca Tettamanti Signed-off-by: Takashi Iwai

ALSA: core: sparse cleanups

2011-02-14T16:10:11+00:00

Change the core code where sparse complains. In most cases, this means just adding annotations to confirm that we indeed want to do the dirty things we're doing. Signed-off-by: Clemens Ladisch Signed-off-by: Takashi Iwai

ALSA: Kill snd_assert() in sound/core/*

2008-08-13T09:46:35+00:00

Kill snd_assert() in sound/core/*, either removed or replaced with if () with snd_BUG_ON(). Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela

[ALSA] Remove sound/driver.h

2008-01-31T16:29:48+00:00

This header file exists only for some hacks to adapt alsa-driver tree. It's useless for building in the kernel. Let's move a few lines in it to sound/core.h and remove it. With this patch, sound/driver.h isn't removed but has just a single compile warning to include it. This should be really killed in future. Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela

[ALSA] Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.cz

2007-10-16T14:51:18+00:00

Signed-off-by: Jaroslav Kysela

[ALSA] Simplify the format conversion in PCM OSS emulation

2007-10-16T13:58:31+00:00

Simplify the format conversion code in PCM OSS emulation. This patch also adds the support of 3bytes 24bit formats with linear and mulaw, but they are not enabled in pcm_plugin.c yet. Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela

[ALSA] Remove ifdefs from OSS PCM emulation codes

2007-10-16T13:58:30+00:00

Fix Makefile to compile files conditionally to CONFIG_SND_PCM_OSS_PLUGINS, and remove unneeded ifdefs in these files. Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela

[ALSA] Clean up pcm-oss plugins

2006-03-22T09:23:20+00:00

Modules: ALSA<-OSS emulation Clean up pcm-oss plugin codes. Removed dead codes, and simplified route/rate plugins. Signed-off-by: Takashi Iwai

[ALSA] PCM midlevel & PCM OSS - make procfs & OSS plugin code optional

2006-03-22T09:23:12+00:00

Modules: ALSA Core,PCM Midlevel,ALSA<-OSS emulation,USB generic driver 1) The verbose procfs code for the PCM midlevel and usb audio can be removed now (more patches will follow). CONFIG_SND_VERBOSE_PROCFS 2) The PCM OSS plugin system can be also compiled optionaly. CONFIG_SND_PCM_OSS_PLUGINS Signed-off-by: Jaroslav Kysela