diff options
| author | Michael Niedermayer <[email protected]> | 2019-05-02 20:45:14 +0200 |
|---|---|---|
| committer | Michael Niedermayer <[email protected]> | 2019-11-14 23:30:37 +0100 |
| commit | abb7d3f1d00aad2f2c7923b59f847064f7017e06 (patch) | |
| tree | 9b07282c27ebd2729f97093c7a3456f5f0be01f9 | |
| parent | 0ecde06ee746ca3b785cd200e0af0485b03cf922 (diff) | |
avformat/webm_chunk: Check header filename length
Signed-off-by: Michael Niedermayer <[email protected]>
(cherry picked from commit 3b5b977c9f96e2c3803317ad75253801bc571791)
Signed-off-by: Michael Niedermayer <[email protected]>
| -rw-r--r-- | libavformat/webm_chunk.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/libavformat/webm_chunk.c b/libavformat/webm_chunk.c index 3f91162da7..dd49afdb9e 100644 --- a/libavformat/webm_chunk.c +++ b/libavformat/webm_chunk.c @@ -92,11 +92,16 @@ static int get_chunk_filename(AVFormatContext *s, int is_header, char *filename) return AVERROR(EINVAL); } if (is_header) { + int len; if (!wc->header_filename) { av_log(oc, AV_LOG_ERROR, "No header filename provided\n"); return AVERROR(EINVAL); } - av_strlcpy(filename, wc->header_filename, MAX_FILENAME_SIZE); + len = av_strlcpy(filename, wc->header_filename, MAX_FILENAME_SIZE); + if (len >= MAX_FILENAME_SIZE) { + av_log(oc, AV_LOG_ERROR, "Header filename too long\n"); + return AVERROR(EINVAL); + } } else { if (av_get_frame_filename(filename, MAX_FILENAME_SIZE, s->filename, wc->chunk_index - 1) < 0) { |