On 12/18/2022 2:08 PM, Michael Niedermayer wrote:
Fixes: left shift of 1208485947 by 1 places cannot be represented in type 'int'
Fixes:
54058/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WAVPACK_fuzzer-5827521084260352
Found-by: continuous fuzzing process
https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
libavcodec/wavpack.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c
index 3cb4077550..42859ab0a1 100644
--- a/libavcodec/wavpack.c
+++ b/libavcodec/wavpack.c
@@ -129,7 +129,7 @@ static av_always_inline unsigned get_tail(GetBitContext
*gb, unsigned k)
e = (1LL << (p + 1)) - k - 1;
res = get_bits_long(gb, p);
if (res >= e)
- res = (res << 1) - e + get_bits1(gb);
+ res = ((unsigned)res << 1) - e + get_bits1(gb);
Don't we usually do << 1U for this?
return res;
}
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
To unsubscribe, visit link above, or email
ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
