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| author | Michael Niedermayer <michael@niedermayer.cc> | 2022-11-17 23:18:01 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2022-11-28 21:20:56 +0100 |
| commit | ff2d1bbe737539b9f564e53f84b7309bc2a38243 (patch) | |
| tree | 017a125620cb2e3d45f4d8a6e3ecc3712872a222 /libavcodec/tiff.c | |
| parent | b2c1a0fc2b196d4cdbaae5b120229138857b559f (diff) | |
| download | ffmpeg-ff2d1bbe737539b9f564e53f84b7309bc2a38243.tar.gz | |
avcodec/tiff: Avoid 0.0/0.0 in camera_xyz_coeff()
Fixes: division by zero
Fixes: 52230/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TIFF_fuzzer-5922608915021824
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/tiff.c')
| -rw-r--r-- | libavcodec/tiff.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/tiff.c b/libavcodec/tiff.c index 5b56892071..cde318d5e5 100644 --- a/libavcodec/tiff.c +++ b/libavcodec/tiff.c @@ -1896,6 +1896,8 @@ static void camera_xyz_coeff(TiffContext *s, for (i = 0; i < 3; i++) { for (num = j = 0; j < 3; j++) num += cam2rgb[i][j]; + if (!num) + num = 1; for (j = 0; j < 3; j++) cam2rgb[i][j] /= num; s->premultiply[i] = 1.f / num; |