diff options
| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-06-16 12:52:30 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-06-26 21:25:50 +0200 |
| commit | d57f6606ebe166a428d939228d0d6490e3255ae1 (patch) | |
| tree | 7a9391aa57e0d05dc68bca7905eaaf1296dac3b2 /libavcodec/rv10.c | |
| parent | bfb58bdd7015a6df2d130c92cf284d6a2362f3df (diff) | |
avcodec/rv10: Avoid calculating undefined value that is unused
Fixes: shift exponent 64 is too large for 32-bit type 'int'
Fixes: 15253/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RV10_fuzzer-5671114300194816
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/rv10.c')
| -rw-r--r-- | libavcodec/rv10.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/rv10.c b/libavcodec/rv10.c index 595e217519..8f4497b9e0 100644 --- a/libavcodec/rv10.c +++ b/libavcodec/rv10.c @@ -646,7 +646,7 @@ static int rv10_decode_packet(AVCodecContext *avctx, const uint8_t *buf, // Repeat the slice end check from ff_h263_decode_mb with our active // bitstream size - if (ret != SLICE_ERROR) { + if (ret != SLICE_ERROR && active_bits_size >= get_bits_count(&s->gb)) { int v = show_bits(&s->gb, 16); if (get_bits_count(&s->gb) + 16 > active_bits_size) |