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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-09-09 20:05:09 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-11-15 12:25:46 +0100 |
| commit | 8ca3bf37abde85786dc21b154743eb21ab01bd5a (patch) | |
| tree | 789a57527b55f4bc26acf737496391c59ac4421b /libavcodec/utvideodec.c | |
| parent | 38800ac4dd0069aeda52e6b6dfb76bdc765a38d6 (diff) | |
| download | ffmpeg-8ca3bf37abde85786dc21b154743eb21ab01bd5a.tar.gz | |
avcodec/g2meet: Check if adjusted pixel was on the stack
This basically checks if a pixel that was coded with prediction
and residual could have been stored using a previous case.
This avoids basically a string of 0 symbols stored in less than
50 bytes to hit a O(n²) codepath.
Fixes: Timeout (too slow to wait -> immediately)
Fixes: 8668/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_G2M_fuzzer-4895946310680576
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 9c84c162e9f9f000ef47d4fcd07354805f38d455)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/utvideodec.c')
0 files changed, 0 insertions, 0 deletions