Message ID | 20190817232841.14709-2-michael@niedermayer.cc |
---|---|
State | Accepted |
Commit | 4778407ab3b545c40def7e95a8f9dd4ae92a4e8e |
Headers | show |
On Sun, Aug 18, 2019 at 01:28:37AM +0200, Michael Niedermayer wrote: > Fixes: left shift of negative value -3 > Fixes: 16147/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RALF_fuzzer-5658392722407424 > > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> > --- > libavcodec/ralf.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) will apply [...]
diff --git a/libavcodec/ralf.c b/libavcodec/ralf.c index d2d803b0d4..75c9371b95 100644 --- a/libavcodec/ralf.c +++ b/libavcodec/ralf.c @@ -220,7 +220,7 @@ static inline int extend_code(GetBitContext *gb, int val, int range, int bits) val -= range; } if (bits) - val = (val << bits) | get_bits(gb, bits); + val = ((unsigned)val << bits) | get_bits(gb, bits); return val; }
Fixes: left shift of negative value -3 Fixes: 16147/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RALF_fuzzer-5658392722407424 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/ralf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)