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avformat/mov: Fix potential integer overflow in entry check in mov_read_trun()

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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2019-03-17 11:14:26 +01:00
parent d92034a06a
commit ff13a92a6f
1 changed files with 1 additions and 1 deletions
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2
libavformat/mov.c
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@ -4778,7 +4778,7 @@ static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
av_log(c->fc, AV_LOG_TRACE, "first sample flags 0x%x\n", first_sample_flags);
// realloc space for new index entries
if((unsigned)st->nb_index_entries + entries >= UINT_MAX / sizeof(AVIndexEntry)) {
if((uint64_t)st->nb_index_entries + entries >= UINT_MAX / sizeof(AVIndexEntry)) {
entries = UINT_MAX / sizeof(AVIndexEntry) - st->nb_index_entries;
av_log(c->fc, AV_LOG_ERROR, "Failed to add index entry\n");
}