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new 32eb07bb83 avcodec/misc4: reject invalid sample rate
32eb07bb83 is described below
commit 32eb07bb83cac19d0258b52b843becd4cee8d3d9
Author: Michael Niedermayer <[email protected]>
AuthorDate: Sun May 31 00:13:59 2026 +0200
Commit: michaelni <[email protected]>
CommitDate: Fri Jun 5 01:16:31 2026 +0000
avcodec/misc4: reject invalid sample rate
Fixes: AVERROR_BUG
Fixes:
493055111/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MISC4_fuzzer-5752676962074624
Found-by: continuous fuzzing process
https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <[email protected]>
---
libavcodec/misc4.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/libavcodec/misc4.c b/libavcodec/misc4.c
index d92c671d1d..af075882f5 100644
--- a/libavcodec/misc4.c
+++ b/libavcodec/misc4.c
@@ -57,6 +57,9 @@ static av_cold int misc4_init(AVCodecContext *avctx)
{
MISC4Context *s = avctx->priv_data;
+ if (avctx->sample_rate <= 0)
+ return AVERROR_INVALIDDATA;
+
avctx->sample_fmt = AV_SAMPLE_FMT_S16;
switch (avctx->sample_rate) {
case 8000:
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