[FFmpeg-devel] [PATCH 1/2] avcodec/siren: Fix integer overflow in get_dw()
Michael Niedermayer
michael at niedermayer.cc
Wed Mar 18 21:20:43 EET 2020
Fixes: signed integer overflow: 685813396 + 1803454769 cannot be represented in type 'int'
Fixes: 21073/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SIREN_fuzzer-5744900508483584
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
libavcodec/siren.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/siren.c b/libavcodec/siren.c
index 76dfe62843..1c17d4505d 100644
--- a/libavcodec/siren.c
+++ b/libavcodec/siren.c
@@ -363,7 +363,7 @@ typedef struct SirenContext {
int sample_rate_bits;
int region_size;
- int dw1, dw2, dw3, dw4;
+ unsigned dw1, dw2, dw3, dw4;
int absolute_region_power_index[32];
float decoder_standard_deviation[32];
--
2.17.1
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