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| author | Andreas Rheinhardt <andreas.rheinhardt@gmail.com> | 2020-06-14 20:54:46 +0200 |
|---|---|---|
| committer | Andreas Rheinhardt <andreas.rheinhardt@gmail.com> | 2020-07-03 16:16:48 +0200 |
| commit | 6ae79b3b138be4c9b20a743b4cd7a44ad2cca790 (patch) | |
| tree | 38798f7b1cb6a71e461ca1dabfb96add4446b0fd | |
| parent | bfa07a9633ffa494d398ea81600ffe56d04acf16 (diff) | |
| download | ffmpeg-6ae79b3b138be4c9b20a743b4cd7a44ad2cca790.tar.gz | |
avformat/mov: Fix reel_name size check
Only read str_size bytes from offset 30 of extradata if the extradata is
indeed at least 30 + str_size bytes long.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
(cherry picked from commit ff3fad6b0edb13dd664403b01bc00309f035b110)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
| -rw-r--r-- | libavformat/mov.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/mov.c b/libavformat/mov.c index eaa7a4d26d..7748446573 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -2107,7 +2107,7 @@ FF_ENABLE_DEPRECATION_WARNINGS uint32_t format = AV_RB32(st->codecpar->extradata + 22); if (format == AV_RB32("name") && (int64_t)size >= (int64_t)len + 18) { uint16_t str_size = AV_RB16(st->codecpar->extradata + 26); /* string length */ - if (str_size > 0 && size >= (int)str_size + 26) { + if (str_size > 0 && size >= (int)str_size + 30) { char *reel_name = av_malloc(str_size + 1); if (!reel_name) return AVERROR(ENOMEM); |