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| author | Michael Niedermayer <michael@niedermayer.cc> | 2022-02-08 00:30:59 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2022-02-09 10:50:35 +0100 |
| commit | bf33a384995ac21aa41422c6246ebdc5d9632452 (patch) | |
| tree | d541677c799c2ae242541aa0ebf002541a7f458e | |
| parent | 6ee283d7d001cfcfec94a023e172bca731e96514 (diff) | |
| download | ffmpeg-bf33a384995ac21aa41422c6246ebdc5d9632452.tar.gz | |
avformat/hls: Use unsigned for iv computation
Fixes: signed integer overflow: 9223372036854775748 + 60 cannot be represented in type 'long'
Fixes: 44417/clusterfuzz-testcase-minimized-ffmpeg_dem_HLS_fuzzer-5802443881971712
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Steven Liu <lingjiujianke@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/hls.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/hls.c b/libavformat/hls.c index 44afdaab42..06bc46c23f 100644 --- a/libavformat/hls.c +++ b/libavformat/hls.c @@ -914,7 +914,7 @@ static int parse_playlist(HLSContext *c, const char *url, if (has_iv) { memcpy(seg->iv, iv, sizeof(iv)); } else { - int64_t seq = pls->start_seq_no + pls->n_segments; + uint64_t seq = pls->start_seq_no + (uint64_t)pls->n_segments; memset(seg->iv, 0, sizeof(seg->iv)); AV_WB64(seg->iv + 8, seq); } |