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| author | Michael Niedermayer <michael@niedermayer.cc> | 2023-09-30 21:28:55 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2023-10-08 21:36:04 +0200 |
| commit | 5f0d00464a50994de0993e045e09313ca8d7cc8f (patch) | |
| tree | cdd0a19c2c1558759b77cad641ad25527fe6efd2 | |
| parent | b3c973acbecb879d4949fecdadd2fdfc08dea42b (diff) | |
avformat/tta: Better totalframes check
Fixes: signed integer overflow: 4 * 740491135 cannot be represented in type 'int'
Fixes: 51896/clusterfuzz-testcase-minimized-ffmpeg_dem_TTA_fuzzer-6298893367508992
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/tta.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/tta.c b/libavformat/tta.c index 2183045940..5477654014 100644 --- a/libavformat/tta.c +++ b/libavformat/tta.c @@ -91,7 +91,7 @@ static int tta_read_header(AVFormatContext *s) c->totalframes = nb_samples / c->frame_size + (c->last_frame_size < c->frame_size); c->currentframe = 0; - if(c->totalframes >= UINT_MAX/sizeof(uint32_t) || c->totalframes <= 0){ + if(c->totalframes >= (INT_MAX - 4)/sizeof(uint32_t) || c->totalframes <= 0){ av_log(s, AV_LOG_ERROR, "totalframes %d invalid\n", c->totalframes); return AVERROR_INVALIDDATA; } |