Harvey Huang

I attach the missing file. Here is my clang version. afl-cc++4.05c by Michal Zalewski, Laszlo Szekeres, Marc Heuse - mode: LLVM-PCGUARD clang version 11.0.0 Target: x86_64-unknown-linux-gnu Thread model: posix InstalledDir: /usr/local/bin I think the official AFL in PPA is correct and the problem is caused by the AFLplusplus. You can try the source code at Github with following version, 4.05a, d1e1bbc713b22d620956. I also contact the developer of AFL++ and they confirm the probelm in this issue.

I attach the missing file. I think the official AFL in PPA is correct and the problem is caused by the AFLplusplus. You can try the source code at Github with following version, 4.05a, d1e1bbc713b22d620956. I also contact the developer of AFL++ and they confirm the probelm in this issue.

Hi, I think the issue may relate to compiler I used since I try to fuzz the program. Even though I modify a bit, it can be triggered using the original AFL++'s compiler. I am working on ubuntu 20.04. Here is the compiling command: CC=compiler CFLAGS="-fsanitize=address -g " ../configure --disable-shared I attach the compiler and the pngimage binary that can reproduce the crash at the end of this reply.

Hi, I think the issue may related to compiler I used since I try to fuzz the program. Even though I modify a bit, it can be triggered using the original AFL++'s compiler. I am working on ubuntu 20.04. Here is the compiling command: CC=compiler CFLAGS="-fsanitize=address -g " ../configure --disable-shared I attach the compiler and the pngimage binary that can reproduce the crash at the end of this reply.

Segmentation fault caused by npd in pngimage, png_setup_paeth_row, pngwutil.c:2496

I think the reason of this segementation fault relating to not handling the null pointer returned from libxml library either in svg.c:4109 or svg.c:4118. Here is the information of my environment: libxml2 version 20903 Ubuntu 18.04 LTS

I think the reason of this segementation fault relates to not handle the null pointer returned from libxml library either in svg.c:4109 or svg.c:4118. Here is the information of my environment: libxml2 version 20903 Ubuntu 18.04 LTS

Segmentation fault caused by null pointer dereference