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/r-cran-matching-4.9-7/src/cblas_dgemm.c
Examining data/r-cran-matching-4.9-7/src/cblas_dasum.c
Examining data/r-cran-matching-4.9-7/src/matching.h
Examining data/r-cran-matching-4.9-7/src/init.c
Examining data/r-cran-matching-4.9-7/src/cblas_dscal.c
Examining data/r-cran-matching-4.9-7/src/cblas.h
Examining data/r-cran-matching-4.9-7/src/scythematrix.cc
Examining data/r-cran-matching-4.9-7/src/scythematrix.h
Examining data/r-cran-matching-4.9-7/src/matching.cc
Examining data/r-cran-matching-4.9-7/inst/extras/cblas_dgemm.c
Examining data/r-cran-matching-4.9-7/inst/extras/cblas_dasum.c
Examining data/r-cran-matching-4.9-7/inst/extras/cblas_dscal.c
Examining data/r-cran-matching-4.9-7/inst/extras/cblas_dtrmm.c
Examining data/r-cran-matching-4.9-7/inst/extras/cblas.h
Examining data/r-cran-matching-4.9-7/inst/extras/malloc.c
Examining data/r-cran-matching-4.9-7/inst/extras/cblas_dsymm.c

FINAL RESULTS:

data/r-cran-matching-4.9-7/inst/extras/malloc.c:1308:27:  [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).
           (dev_zero_fd = open("/dev/zero", O_RDWR), \
data/r-cran-matching-4.9-7/inst/extras/malloc.c:2432:16:  [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 buf[sizeof(size_t)];
data/r-cran-matching-4.9-7/inst/extras/malloc.c:2434:17:  [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).
      if ((fd = open("/dev/urandom", O_RDONLY)) >= 0 &&
data/r-cran-matching-4.9-7/inst/extras/malloc.c:3794:9:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
        memcpy(newmem, oldmem, (oc < bytes)? oc : bytes);
data/r-cran-matching-4.9-7/src/matching.cc:565:6:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
	    memcpy(tI_tmp.data, I.data, OldMatchCount*sizeof(double));
data/r-cran-matching-4.9-7/src/matching.cc:566:6:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
	    memcpy(tIM_tmp.data, IM.data, OldMatchCount*sizeof(double));
data/r-cran-matching-4.9-7/src/matching.cc:567:6:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
	    memcpy(tW_tmp.data, W.data, OldMatchCount*sizeof(double));
data/r-cran-matching-4.9-7/src/matching.cc:2100:3:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
		memcpy(tI_tmp.data, I.data, OldMatchCount*sizeof(double));
data/r-cran-matching-4.9-7/src/matching.cc:2101:3:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
		memcpy(tIM_tmp.data, IM.data, OldMatchCount*sizeof(double));
data/r-cran-matching-4.9-7/src/matching.cc:2102:3:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
		memcpy(tW_tmp.data, W.data, OldMatchCount*sizeof(double));
data/r-cran-matching-4.9-7/src/matching.cc:2117:3:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
		memcpy(IM.data+MCindx, IMt.data, IMt.size*sizeof(double));
data/r-cran-matching-4.9-7/src/scythematrix.cc:117:2:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
	memcpy(data, inputarray, size*sizeof(double));
data/r-cran-matching-4.9-7/src/scythematrix.cc:138:2:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
	memcpy(data, old_Matrix.data, size*sizeof(double));
data/r-cran-matching-4.9-7/src/scythematrix.cc:159:2:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
	memcpy(data, B.data, size * sizeof(double));
data/r-cran-matching-4.9-7/src/scythematrix.cc:192:2:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
	memcpy(newdata.data, data+i*colsize, newcolsize*sizeof(double));
data/r-cran-matching-4.9-7/src/scythematrix.cc:263:2:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
	memcpy(newdata.data, data+i*colsize, newcolsize*sizeof(double));
data/r-cran-matching-4.9-7/inst/extras/malloc.c:645:32:  [1] (free) memalign:
  On some systems (though not Linux-based systems) an attempt to free()
  results from memalign() may fail. This may, on a few systems, be
  exploitable. Also note that memalign() may not check that the boundary
  parameter is correct (CWE-676). Use posix_memalign instead (defined in
  POSIX's 1003.1d). Don't switch to valloc(); it is marked as obsolete in BSD
  4.3, as legacy in SUSv2, and is no longer defined in SUSv3. In some cases,
  malloc()'s alignment may be sufficient.
#define dlmemalign             memalign
data/r-cran-matching-4.9-7/inst/extras/malloc.c:2435:11:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
          read(fd, buf, sizeof(buf)) == sizeof(buf)) {

ANALYSIS SUMMARY:

Hits = 18
Lines analyzed = 12663 in approximately 0.36 seconds (34981 lines/second)
Physical Source Lines of Code (SLOC) = 7112
Hits@level = [0]   3 [1]   2 [2]  16 [3]   0 [4]   0 [5]   0
Hits@level+ = [0+]  21 [1+]  18 [2+]  16 [3+]   0 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 2.95276 [1+] 2.53093 [2+] 2.24972 [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.