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authorTakashi Iwai <tiwai@suse.de>2018-07-17 17:26:43 +0200
committerTakashi Iwai <tiwai@suse.de>2018-07-17 17:33:17 +0200
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ALSA: rawmidi: Change resized buffers atomically
The SNDRV_RAWMIDI_IOCTL_PARAMS ioctl may resize the buffers and the current code is racy. For example, the sequencer client may write to buffer while it being resized. As a simple workaround, let's switch to the resized buffer inside the stream runtime lock. Reported-by: syzbot+52f83f0ea8df16932f7f@syzkaller.appspotmail.com Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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