OSV-2020-2128 Heap-use-after-free in pixChangeRefcount

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26967 Crash type: Heap-use-after-free READ 4 Crash state: pixChangeRefcount pixFree pixDestroy...

leptonica:adaptmap_fuzzer: Heap-use-after-free in pixChangeRefcount

Project: https://github.com/DanBloomberg/leptonica.git Detailed Report: https://oss-fuzz.com/testcase?key=4941737753313280 Project: leptonica Fuzzing Engine: libFuzzer Fuzz Target: adaptmapfuzzer Job Type: libfuzzerasanleptonica Platform Id: linux Crash Type: Heap-use-after-free READ 4 Crash...