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| author | Michael Niedermayer <michael@niedermayer.cc> | 2022-09-17 21:54:31 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2022-09-24 22:58:20 +0200 |
| commit | 48acb06c7830a44a641e545b8eb079b47987ac62 (patch) | |
| tree | 9e09b957698511db1fa86fa54c352b3bf28dd276 | |
| parent | ef0a5051262e8fc237601a3def4bbdc9aa4195ac (diff) | |
| download | ffmpeg-48acb06c7830a44a641e545b8eb079b47987ac62.tar.gz | |
avformat/dhav: Use 64bit seek_back
Fixes: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself
Fixes: 50993/clusterfuzz-testcase-minimized-ffmpeg_dem_DHAV_fuzzer-6604736532447232
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 10453f5192869b63b071aee3962ae2c712f9bfd3)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/dhav.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/dhav.c b/libavformat/dhav.c index 9d26efe8fc..4e720f2a26 100644 --- a/libavformat/dhav.c +++ b/libavformat/dhav.c @@ -242,7 +242,7 @@ static int64_t get_duration(AVFormatContext *s) avio_seek(s->pb, avio_size(s->pb) - 8, SEEK_SET); while (avio_tell(s->pb) > 12 && max_interations--) { if (avio_rl32(s->pb) == MKTAG('d','h','a','v')) { - int seek_back = avio_rl32(s->pb); + int64_t seek_back = avio_rl32(s->pb); avio_seek(s->pb, -seek_back, SEEK_CUR); read_chunk(s); |