Hi, I am new to afl++. I was trying to build a pdf corpus for fuzzing but I warning like "[!] WARNING: Test case '/corpus/queries/file_20250410_220608_bbc643.pdf' is too big (11.1 MB, limit is 1.00 MB), partial reading
" what is the best practice to deal with this? Is there a way just change the size limit?
Here is part of output:
jim-afl-mupdf | [] Running AFL fuzzing...
jim-afl-mupdf | [+] Enabled environment variable AFL_SKIP_CPUFREQ with value 1
jim-afl-mupdf | [+] Enabled environment variable AFL_I_DONT_CARE_ABOUT_MISSING_CRASHES with value 1
jim-afl-mupdf | [+] Enabled environment variable AFL_TRY_AFFINITY with value 1
jim-afl-mupdf | [!] WARNING: Mistyped AFL environment variable: AFL_FILESZ=3145728
jim-afl-mupdf | Did you mean AFL_UNTRACER_FILE?
jim-afl-mupdf | Did you mean AFL_PERFORMANCE_FILE?
jim-afl-mupdf | Did you mean AFL_TOKEN_FILE?
jim-afl-mupdf | afl-fuzz++4.31a based on afl by Michal Zalewski and a large online community
jim-afl-mupdf | [+] AFL++ is maintained by Marc "van Hauser" Heuse, Dominik Maier, Andrea Fioraldi and Heiko "hexcoder" Eißfeldt
jim-afl-mupdf | [+] AFL++ is open source, get it at https://github.com/AFLplusplus/AFLplusplus
jim-afl-mupdf | [+] NOTE: AFL++ >= v3 has changed defaults and behaviours - see README.md
jim-afl-mupdf | [] Getting to work...
jim-afl-mupdf | [+] Using exploration-based constant power schedule (EXPLORE)
jim-afl-mupdf | [+] Enabled testcache with 50 MB
jim-afl-mupdf | [+] Generating fuzz data with a length of min=1 max=1048576
jim-afl-mupdf | [] Checking core_pattern...
jim-afl-mupdf | [+] You have 104 CPU cores and 13 runnable tasks (utilization: 12%).
jim-afl-mupdf | [+] Try parallel jobs - see /usr/local/share/doc/afl/fuzzing_in_depth.md#c-using-multiple-cores
jim-afl-mupdf | [] Setting up output directories...
jim-afl-mupdf | [+] Output directory exists but deemed OK to reuse.
jim-afl-mupdf | [] Deleting old session data...
jim-afl-mupdf | [+] Output dir cleanup successful.
jim-afl-mupdf | [] Checking CPU core loadout...
jim-afl-mupdf | [+] Found a free CPU core, try binding to #0.
jim-afl-mupdf | [] Validating target binary...
jim-afl-mupdf | [] Scanning '/corpus'...
jim-afl-mupdf | [*] Scanning '/corpus/queries'...
jim-afl-mupdf | [!] WARNING: Test case '/corpus/queries/file_20250410_220608_bbc643.pdf' is too big (11.1 MB, limit is 1.00 MB), partial reading
jim-afl-mupdf | [!] WARNING: Test case '/corpus/queries/file_20250410_220609_fe6922.pdf' is too big (1.15 MB, limit is 1.00 MB), partial reading
jim-afl-mupdf | [!] WARNING: Test case '/corpus/queries/file_20250410_220613_aea38f.pdf' is too big (1.39 MB, limit is 1.00 MB), partial reading
jim-afl-mupdf | [!] WARNING: Test case '/corpus/queries/file_20250410_220643_e04c21.pdf' is too big (3.35 MB, limit is 1.00 MB), partial reading
jim-afl-mupdf | [!] WARNING: Test case '/corpus/queries/file_20250410_220701_c373c3.pdf' is too big (1.10 MB, limit is 1.00 MB), partial reading