Result of fuzzing tests

[mymedia2]

Result of fuzzing tests

[mymedia2]

Fuzz testing is being in progress, and I found three new JSONs that broke rLottie.

Cases 7, 8

Assertion failures in ft_stroke_border_export and model::Trim::(no)?loop and then stack buffer overflow if the NDEBUG macro is defined.

014f.json {"v":"0","op":5,"h":3,"layers":[{"ty":4,"ks":{},"shapes":[{"ty":"sr","pt":{"k":[{"i":{},"e":[10000]}]},"or":{"k":[{"i":{},"s":[1]},{"t":4}]},"os":{"k":[{"i":{},"s":[5]},{"t":4}]}},{"ty":"st","w":{"k":2}}],"op":5}]}
016f.json {"v":"0","op":9,"layers":[{"ty":4,"ks":{},"shapes":[{"ty":"tm","s":{"k":[{"i":{},"o":{"y":[9]},"s":[1]},{"t":9}]},"o":{"k":5}}],"op":9}]}

Click to see output (lottie2gif ...)

mymedia@barberry:~/rlottie$ build/example/lottie2gif fuzz/collect/014f.json
lottie2gif: /home/mymedia/rlottie/src/vector/freetype/v_ft_stroker.cpp:666: void ft_stroke_border_export(SW_FT_StrokeBorder, SW_FT_Outline*): Assertion `SW_FT_Outline_Check(outline) == 0' failed.
Aborted
mymedia@barberry:~/rlottie$ build/example/lottie2gif fuzz/collect/016f.json
lottie2gif: /home/mymedia/rlottie/src/lottie/lottiemodel.h:1058: rlottie::internal::model::Trim::Segment rlottie::internal::model::Trim::noloop(float, float) const: Assertion `start >= 0' failed.
Aborted

Case 9

Deadlock due to an unset guard flag in SharedRle.

017f.json {"v":"5.1.17","fr":30,"op":30,"w":300,"h":300,"layers":[{"op":30,"ty":4,"ks":{},"shapes":[{"ty":"rc","s":{"k":[{"i":{},"s":[1,1],"e":[111111]},{"t":3}]}},{"ty":"st","w":{"k":1},"d":[{"v":{"k":1}},{"v":{}}]}]}]}