| 6665bb30 | 01-Dec-2021 |
Takashi Iwai <tiwai@suse.de> |
ALSA: pcm: oss: Handle missing errors in snd_pcm_oss_change_params*()
A couple of calls in snd_pcm_oss_change_params_locked() ignore the
possible errors. Catch those errors and abort the operation
ALSA: pcm: oss: Handle missing errors in snd_pcm_oss_change_params*()
A couple of calls in snd_pcm_oss_change_params_locked() ignore the
possible errors. Catch those errors and abort the operation for
avoiding further problems.
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211201073606.11660-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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| 8839c8c0 | 01-Dec-2021 |
Takashi Iwai <tiwai@suse.de> |
ALSA: pcm: oss: Limit the period size to 16MB
Set the practical limit to the period size (the fragment shift in OSS)
instead of a full 31bit; a too large value could lead to the exhaust
of memory as
ALSA: pcm: oss: Limit the period size to 16MB
Set the practical limit to the period size (the fragment shift in OSS)
instead of a full 31bit; a too large value could lead to the exhaust
of memory as we allocate temporary buffers of the period size, too.
As of this patch, we set to 16MB limit, which should cover all use
cases.
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/20211201073606.11660-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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| 3ab79920 | 24-Oct-2021 |
Pavel Skripkin <paskripkin@gmail.com> |
ALSA: mixer: fix deadlock in snd_mixer_oss_set_volume
In commit 411cef6adfb3 ("ALSA: mixer: oss: Fix racy access to slots")
added mutex protection in snd_mixer_oss_set_volume(). Second
mutex_lock()
ALSA: mixer: fix deadlock in snd_mixer_oss_set_volume
In commit 411cef6adfb3 ("ALSA: mixer: oss: Fix racy access to slots")
added mutex protection in snd_mixer_oss_set_volume(). Second
mutex_lock() in same function looks like typo, fix it.
Reported-by: syzbot+ace149a75a9a0a399ac7@syzkaller.appspotmail.com
Fixes: 411cef6adfb3 ("ALSA: mixer: oss: Fix racy access to slots")
Cc: <stable@vger.kernel.org>
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Link: https://lore.kernel.org/r/20211024140315.16704-1-paskripkin@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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