diff options
| author | Michael Niedermayer <[email protected]> | 2021-01-17 22:14:03 +0100 |
|---|---|---|
| committer | Michael Niedermayer <[email protected]> | 2021-02-02 14:18:22 +0100 |
| commit | bbb54948012ee244ddd4aca082ba9b1892d13ecb (patch) | |
| tree | 0a74bffe6728fac49c74a81a324c35530bea2194 | |
| parent | 32c6304cf01d87e3ef76606e5eb8723b2d61e26f (diff) | |
avformat/smacker: Check for too small pts_inc
Fixes: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself
Fixes: 26910/clusterfuzz-testcase-minimized-ffmpeg_dem_SMACKER_fuzzer-6705429132476416
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <[email protected]>
(cherry picked from commit f54aab94a363489edcda492637d6e7409cc5446b)
Signed-off-by: Michael Niedermayer <[email protected]>
| -rw-r--r-- | libavformat/smacker.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavformat/smacker.c b/libavformat/smacker.c index 8b1e185817..14c5e3c1c7 100644 --- a/libavformat/smacker.c +++ b/libavformat/smacker.c @@ -104,8 +104,8 @@ static int smacker_read_header(AVFormatContext *s) height = avio_rl32(pb); smk->frames = avio_rl32(pb); pts_inc = avio_rl32(pb); - if (pts_inc > INT_MAX / 100) { - av_log(s, AV_LOG_ERROR, "pts_inc %d is too large\n", pts_inc); + if (pts_inc > INT_MAX / 100 || pts_inc == INT_MIN) { + av_log(s, AV_LOG_ERROR, "pts_inc %d is invalid\n", pts_inc); return AVERROR_INVALIDDATA; } |