Clipping is done as it was preferred in review
See: [FFmpeg-devel] [PATCH 1/5] avcodec/atrac9dec: Check precision_fine/coarse
Fixes: out of array access
Fixes:
18330/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ATRAC9_fuzzer-5641113058148352
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
libavcodec/atrac9dec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/atrac9dec.c b/libavcodec/atrac9dec.c
index b0f659d118..e3e4f2f14e 100644
--- a/libavcodec/atrac9dec.c
+++ b/libavcodec/atrac9dec.c
@@ -187,7 +187,7 @@ static inline void calc_precision(ATRAC9Context *s,
ATRAC9BlockData *b,
for (int i = 0; i < b->q_unit_cnt; i++) {
c->precision_fine[i] = 0;
if (c->precision_coarse[i] > 15) {
- c->precision_fine[i] = c->precision_coarse[i] - 15;
+ c->precision_fine[i] = FFMIN(c->precision_coarse[i], 30) - 15;
c->precision_coarse[i] = 15;
}
}
--
2.23.0
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