Commit 9b3a8f36418e8b6a601aa683506bb875f6dd9f12
2023-01-27T13:38:48
jcapimin.c: Revert changes made in fc01f467 Those changes worked around an innocuous UBSan warning that was exposed by the new TurboJPEG 3 transform fuzz target, due to the fact that tj3Transform() no longer rejects images with unknown subsampling configurations. That UBSan warning was a false positive, and attempting to fix it introduced a buffer overrun triggered by a malformed input image that causes jpeg_write_marker() to be called with datalen == 0. I suspect that the UBSan false positive was only reproducible on my local machine, but I guess we'll see. Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=55413