diff options
| author | Michael Niedermayer <[email protected]> | 2019-06-13 16:08:03 +0200 |
|---|---|---|
| committer | Michael Niedermayer <[email protected]> | 2019-06-27 17:50:47 +0200 |
| commit | c0e3f54ec061629d79549ee4855c8b4f844d3ad1 (patch) | |
| tree | 17c698d8b8e567f5d399704cd783cf3c69c539b0 | |
| parent | 26605408f1aaf212d966277ece9dc6ce73ce5a1d (diff) | |
avcodec/fitsdec: Fix division by 0 in size check
Fixes: division by zero
Fixes: 15210/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FITS_fuzzer-5746033243455488
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 07ffe94c172041cfb03109b9bb6b8bf577332bda)
Signed-off-by: Michael Niedermayer <[email protected]>
| -rw-r--r-- | libavcodec/fitsdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/fitsdec.c b/libavcodec/fitsdec.c index b0753813c9..67a8bd71f4 100644 --- a/libavcodec/fitsdec.c +++ b/libavcodec/fitsdec.c @@ -143,7 +143,7 @@ static int fits_read_header(AVCodecContext *avctx, const uint8_t **ptr, FITSHead size = abs(header->bitpix) >> 3; for (i = 0; i < header->naxis; i++) { - if (header->naxisn[i] > SIZE_MAX / size) { + if (size && header->naxisn[i] > SIZE_MAX / size) { av_log(avctx, AV_LOG_ERROR, "unsupported size of FITS image"); return AVERROR_INVALIDDATA; } |