| Message ID | 20190303001134.20043-1-michael@niedermayer.cc |
|---|---|
| State | Accepted |
| Commit | 6e0b5d3a20e107860a34e90139b860d6b8219a1d |
| Headers | show |
On Sun, Mar 03, 2019 at 01:11:34AM +0100, Michael Niedermayer wrote: > Fixes: 13099/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DXV_fuzzer-5665598896340992 > Fixes: signed integer overflow: 2147483647 + 7 cannot be represented in type 'int' > > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> > --- > libavcodec/dxv.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) will apply [...]
diff --git a/libavcodec/dxv.c b/libavcodec/dxv.c index bf53d7d706..aef5ec19dd 100644 --- a/libavcodec/dxv.c +++ b/libavcodec/dxv.c @@ -426,7 +426,8 @@ static int fill_optable(unsigned *table0, OpcodeTable *table1, int nb_elements) static int get_opcodes(GetByteContext *gb, uint32_t *table, uint8_t *dst, int op_size, int nb_elements) { OpcodeTable optable[1024]; - int sum, x, val, lshift, rshift, ret, size_in_bits, i, idx; + int sum, x, val, lshift, rshift, ret, i, idx; + int64_t size_in_bits; unsigned endoffset, newoffset, offset; unsigned next; uint8_t *src = (uint8_t *)gb->buffer;
Fixes: 13099/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DXV_fuzzer-5665598896340992 Fixes: signed integer overflow: 2147483647 + 7 cannot be represented in type 'int' Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/dxv.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)