Package png version 0.1-8 Package built using 86189/R 4.4.0; x86_64-pc-linux-gnu; 2024-03-25 22:20:26 UTC; unix Checked with rchk version fdc068715daa3a256062cc20e0d4a5157dacc9a4 LLVM version 14.0.6 More information at https://github.com/kalibera/cran-checks/blob/master/rchk/PROTECT.md For rchk in docker image see https://github.com/kalibera/rchk/blob/master/doc/DOCKER.md Function write_png [PB] has possible protection stack imbalance png/src/write.c:310