diff options
| author | Michael Niedermayer <[email protected]> | 2020-11-10 23:01:12 +0100 |
|---|---|---|
| committer | Michael Niedermayer <[email protected]> | 2021-09-09 13:53:29 +0200 |
| commit | 67dff50ad857c8b888e311cc6ca7f1e95a350be3 (patch) | |
| tree | 704ef0e37eb0f883aa83770707040e2053b11d34 | |
| parent | 4db70e21390abadc6087ebad7b1ff80a06209af8 (diff) | |
avformat/aiffdec: Check size before subtraction in get_aiff_header()
Fixes: Infinite loop
Fixes: 27235/clusterfuzz-testcase-minimized-ffmpeg_dem_AIFF_fuzzer-5761398380167168
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <[email protected]>
(cherry picked from commit 8af299acde9601e64740b75430960503615873b4)
Signed-off-by: Michael Niedermayer <[email protected]>
| -rw-r--r-- | libavformat/aiffdec.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavformat/aiffdec.c b/libavformat/aiffdec.c index 413ae54748..82cfa22881 100644 --- a/libavformat/aiffdec.c +++ b/libavformat/aiffdec.c @@ -119,6 +119,8 @@ static int get_aiff_header(AVFormatContext *s, int size, else sample_rate = (val + (1ULL<<(-exp-1))) >> -exp; par->sample_rate = sample_rate; + if (size < 18) + return AVERROR_INVALIDDATA; size -= 18; /* get codec id for AIFF-C */ |