diff options
| author | Michael Niedermayer <michael@niedermayer.cc> | 2025-05-10 01:55:27 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2025-05-15 03:03:54 +0200 |
| commit | 6a47046981d05c59f6ac766d5fbf6586261a216f (patch) | |
| tree | 2d2f5d98880d9df479c8be111e321eb13ee58d3d | |
| parent | 1a5ed492e577707bc7eb48e25c27a14906adb6d8 (diff) | |
| download | ffmpeg-6a47046981d05c59f6ac766d5fbf6586261a216f.tar.gz | |
avformat/avidec: Ignore duplicate GAB2
Fixes: memleak
Fixes: 398401912/clusterfuzz-testcase-minimized-ffmpeg_dem_AVI_fuzzer-4669849976766464
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/avidec.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavformat/avidec.c b/libavformat/avidec.c index 1ae09efc15..81a0ae31ba 100644 --- a/libavformat/avidec.c +++ b/libavformat/avidec.c @@ -1122,6 +1122,10 @@ static int read_gab2_sub(AVFormatContext *s, AVStream *st, AVPacket *pkt) int size; AVProbeData pd; unsigned int desc_len; + + if (ast->sub_ctx) + return 0; + AVIOContext *pb = avio_alloc_context(pkt->data + 7, pkt->size - 7, 0, NULL, NULL, NULL, NULL); |