mirror of
https://github.com/Fishwaldo/Star64_linux.git
synced 2025-03-16 04:04:06 +00:00
ALSA: pcm: fix divide error in snd_pcm_lib_ioctl
commitf3eef46f05
upstream. Syzkaller reported a divide error in snd_pcm_lib_ioctl. fifo_size is of type snd_pcm_uframes_t(unsigned long). If frame_size is 0x100000000, the error occurs. Fixes:a9960e6a29
("ALSA: pcm: fix fifo_size frame calculation") Signed-off-by: Zubin Mithra <zsm@chromium.org> Reviewed-by: Guenter Roeck <groeck@chromium.org> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210827153735.789452-1-zsm@chromium.org Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
5f9aadda1d
commit
d789944b05
1 changed files with 1 additions and 1 deletions
|
@ -1746,7 +1746,7 @@ static int snd_pcm_lib_ioctl_fifo_size(struct snd_pcm_substream *substream,
|
|||
channels = params_channels(params);
|
||||
frame_size = snd_pcm_format_size(format, channels);
|
||||
if (frame_size > 0)
|
||||
params->fifo_size /= (unsigned)frame_size;
|
||||
params->fifo_size /= frame_size;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
|
Loading…
Add table
Reference in a new issue