Flawfinder version 2.0.10, (C) 2001-2019 David A. Wheeler. Number of rules (primarily dangerous function names) in C/C++ ruleset: 223 Examining data/haskell-hashable-1.3.0.0/benchmarks/cbits/inthash.c Examining data/haskell-hashable-1.3.0.0/benchmarks/cbits/siphash-sse2.c Examining data/haskell-hashable-1.3.0.0/benchmarks/cbits/siphash-sse41.c Examining data/haskell-hashable-1.3.0.0/benchmarks/cbits/siphash.c Examining data/haskell-hashable-1.3.0.0/benchmarks/cbits/wang.c Examining data/haskell-hashable-1.3.0.0/cbits/fnv.c Examining data/haskell-hashable-1.3.0.0/cbits/getRandomBytes.c Examining data/haskell-hashable-1.3.0.0/cbits/mmap.c FINAL RESULTS: data/haskell-hashable-1.3.0.0/benchmarks/cbits/siphash-sse41.c:27:11: [2] (buffer) char: Statically-sized arrays can be improperly restricted, leading to potential overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use functions that limit length, or ensure that the size is larger than the maximum possible length. unsigned char key[16]; data/haskell-hashable-1.3.0.0/cbits/getRandomBytes.c:74:8: [2] (misc) open: Check when opening files - can an attacker redirect it (via symlinks), force the opening of special file type (e.g., device files), move things around to create a race condition, control its ancestors, or change its contents? (CWE-362). fd = open("/dev/urandom", O_RDONLY); data/haskell-hashable-1.3.0.0/cbits/getRandomBytes.c:79:13: [1] (buffer) read: Check buffer boundaries if used in a loop including recursive loops (CWE-120, CWE-20). nread = read(fd, dest + off, nbytes); ANALYSIS SUMMARY: Hits = 3 Lines analyzed = 721 in approximately 0.05 seconds (13178 lines/second) Physical Source Lines of Code (SLOC) = 463 Hits@level = [0] 0 [1] 1 [2] 2 [3] 0 [4] 0 [5] 0 Hits@level+ = [0+] 3 [1+] 3 [2+] 2 [3+] 0 [4+] 0 [5+] 0 Hits/KSLOC@level+ = [0+] 6.47948 [1+] 6.47948 [2+] 4.31965 [3+] 0 [4+] 0 [5+] 0 Dot directories skipped = 1 (--followdotdir overrides) Minimum risk level = 1 Not every hit is necessarily a security vulnerability. There may be other security vulnerabilities; review your code! See 'Secure Programming HOWTO' (https://dwheeler.com/secure-programs) for more information.