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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2019-05-06 15:51:19 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2019-05-06 15:08:08 +0200 |
| commit | 2854cd34fbab5f28a356d3667c26b7856a7b73e2 (patch) | |
| tree | 3b195fc5c6918e3f621973a8dce8a74aa9bf5066 /sound/synth | |
| parent | 17b89c80319c2a66d33142112e06bf15893e6ecb (diff) | |
| download | linux-2854cd34fbab5f28a356d3667c26b7856a7b73e2.tar.bz2 | |
ALSA: synth: emux: soundfont.c: divide by zero in calc_gus_envelope_time()
This function is called from load_guspatch() and the rate is specified
by the user. If they accidentally selected zero then it would crash the
kernel. I've just changed the zero to a one.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/synth')
| -rw-r--r-- | sound/synth/emux/soundfont.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/synth/emux/soundfont.c b/sound/synth/emux/soundfont.c index 31a4ea94830e..9b5d70104489 100644 --- a/sound/synth/emux/soundfont.c +++ b/sound/synth/emux/soundfont.c @@ -856,6 +856,8 @@ calc_gus_envelope_time(int rate, int start, int end) int r, p, t; r = (3 - ((rate >> 6) & 3)) * 3; p = rate & 0x3f; + if (!p) + p = 1; t = end - start; if (t < 0) t = -t; if (13 > r) |