| Message ID | 20170727214927.22553-2-michael@niedermayer.cc |
|---|---|
| State | Accepted |
| Commit | c0220c768c7fc933a76c863ebbb0abdf68a88533 |
| Headers | show |
diff --git a/libavcodec/diracdec.c b/libavcodec/diracdec.c index d2262ebbf5..d2aaeab011 100644 --- a/libavcodec/diracdec.c +++ b/libavcodec/diracdec.c @@ -249,7 +249,7 @@ enum dirac_subband { /* magic number division by 3 from schroedinger */ static inline int divide3(int x) { - return ((x+1)*21845 + 10922) >> 16; + return (int)((x+1U)*21845 + 10922) >> 16; } static DiracFrame *remove_frame(DiracFrame *framelist[], int picnum)
Fixes: runtime error: signed integer overflow: -1073746548 * 21845 cannot be represented in type 'int' Fixes: 2729/clusterfuzz-testcase-minimized-5902915464069120 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/diracdec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)