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/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/storage.cpp
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/common.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/storage.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/dense/dense.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/dense/dense.cpp
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/common.cpp
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/list/list.cpp
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/list/list.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/yale/class.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/yale/math/transpose.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/yale/yale.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/yale/yale.cpp
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/yale/iterators/stored_diagonal.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/yale/iterators/row_stored_nd.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/yale/iterators/base.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/yale/iterators/row_stored.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/yale/iterators/iterator.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/yale/iterators/row.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/math/long_dtype.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/math/trsm.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/math/inc.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/math/math.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/math/getri.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/math/gesdd.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/math/potrs.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/math/getrs.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/math/gemv.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/math/asum.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/math/nrm2.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/math/scal.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/math/getf2.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/math/laswp.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/math/getrf.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/math/geev.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/math/ger.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/math/rotg.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/math/idamax.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/math/gemm.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/math/rot.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/math/gesvd.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/math/swap.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/ruby_nmatrix.c
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/nmatrix.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/data/rational.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/data/meta.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/data/data.cpp
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/data/complex.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/data/ruby_object.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/data/data.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/nmatrix.cpp
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/types.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/util/sl_list.cpp
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/util/io.cpp
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/util/sl_list.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/util/io.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/util/util.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/ruby_constants.h
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/math.cpp
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/ruby_constants.cpp
Examining data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/nm_memory.h
FINAL RESULTS:
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/math.cpp:1638:7: [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(reinterpret_cast<char*>(B) + (i*ldb+j)*element_size,
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/ruby_nmatrix.c:3057:5: [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(shape_copy, shape, sizeof(size_t)*nm_dim);
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/ruby_nmatrix.c:3062:3: [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(elements_copy, elements, DTYPE_SIZES[dtype]*length);
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/dense/dense.cpp:261:9: [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((char*)(s->elements)+i*DTYPE_SIZES[dtype], (char*)(elements)+(i % elements_length)*DTYPE_SIZES[dtype], copy_length*DTYPE_SIZES[dtype]);
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/dense/dense.cpp:379:3: [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(shape_copy, s->shape, sizeof(size_t) * s->dim);
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/dense/dense.cpp:431:3: [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(shape_copy, s->shape, sizeof(size_t) * s->dim);
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/dense/dense.cpp:481:3: [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(shape_copy, s->shape, sizeof(size_t) * s->dim);
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/dense/dense.cpp:531:3: [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(shape_copy, s->shape, sizeof(size_t) * s->dim);
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/dense/dense.cpp:804:7: [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(lhs->elements, rhs->elements, DTYPE_SIZES[rhs->dtype] * count);
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/dense/dense.cpp:938:3: [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(shape, rhs->shape, sizeof(size_t) * rhs->dim);
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/list/list.cpp:110:5: [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(new_shape, shape_, sizeof(size_t)*ref->dim);
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/list/list.cpp:980:3: [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(init_val, &init, sizeof(VALUE));
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/list/list.cpp:1049:3: [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(init_val, &init, sizeof(VALUE));
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/list/list.cpp:1136:5: [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(init_val, s->default_val, DTYPE_SIZES[s->dtype]);
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/list/list.cpp:1141:5: [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(shape, slice->lengths, sizeof(size_t) * s->dim);
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/list/list.cpp:1421:3: [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(shape, rhs->shape, sizeof(size_t) * rhs->dim);
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/list/list.cpp:1424:3: [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(init_val, rhs->default_val, DTYPE_SIZES[rhs->dtype]);
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/list/list.cpp:1475:3: [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(shape, rhs->shape, rhs->dim * sizeof(size_t));
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/storage.cpp:93:3: [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(shape, rhs->shape, rhs->dim * sizeof(size_t));
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/storage.cpp:280:3: [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(shape, rhs->shape, rhs->dim * sizeof(size_t));
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/yale/yale.cpp:468:3: [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(new_ija, old_ija, s->capacity * sizeof(IType));
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/storage/yale/yale.cpp:469:3: [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(new_a, old_a, s->capacity * DTYPE_SIZES[s->dtype]);
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/util/io.cpp:257:5: [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(merge + merge_pos, real + i, len);
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/util/io.cpp:261:5: [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(merge + merge_pos, imag + i, len);
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/util/sl_list.cpp:146:3: [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(val_copy, val, val_size);
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/util/sl_list.cpp:249:15: [2] (buffer) memcpy:
Does not check for buffer overflows when copying to destination (CWE-120).
Make sure destination can always hold the source data.
if (copy) memcpy(node->next->val, val, copy_size);
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/util/sl_list.cpp:261:7: [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(val_copy, val, copy_size);
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/util/sl_list.cpp:277:3: [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(copy_val, val, size);
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/nmatrix.cpp:160:9: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
f.read(reinterpret_cast<char*>(storage->elements), length * sizeof(DType) );
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/nmatrix.cpp:171:11: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
f.read( reinterpret_cast<char*>(&(elements[i * length])), (i + 1) * sizeof(DType) );
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/nmatrix.cpp:185:11: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
f.read( reinterpret_cast<char*>(&(elements[i * (length + 1)])), (length - i) * sizeof(DType) );
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/nmatrix.cpp:246:7: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
f.read(reinterpret_cast<char*>(storage->a), bytes_read);
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/nmatrix.cpp:249:7: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
f.read(reinterpret_cast<char*>(&padding), bytes_read % 8);
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/nmatrix.cpp:252:7: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
f.read(reinterpret_cast<char*>(storage->ija), bytes_read);
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/nmatrix.cpp:254:7: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
f.read(reinterpret_cast<char*>(&padding), bytes_read % 8);
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/ruby_nmatrix.c:1599:7: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
f.read(reinterpret_cast<char*>(&s), sizeof(size_t));
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/ruby_nmatrix.c:1810:5: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
f.read(reinterpret_cast<char*>(&fmajor), sizeof(uint16_t));
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/ruby_nmatrix.c:1811:5: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
f.read(reinterpret_cast<char*>(&fminor), sizeof(uint16_t));
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/ruby_nmatrix.c:1812:5: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
f.read(reinterpret_cast<char*>(&frelease), sizeof(uint16_t));
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/ruby_nmatrix.c:1813:5: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
f.read(reinterpret_cast<char*>(&null16), sizeof(uint16_t));
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/ruby_nmatrix.c:1828:5: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
f.read(reinterpret_cast<char*>(&dt), sizeof(uint8_t));
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/ruby_nmatrix.c:1829:5: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
f.read(reinterpret_cast<char*>(&st), sizeof(uint8_t));
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/ruby_nmatrix.c:1830:5: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
f.read(reinterpret_cast<char*>(&it), sizeof(uint8_t)); // FIXME: should tell how few bytes indices are stored as
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/ruby_nmatrix.c:1831:5: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
f.read(reinterpret_cast<char*>(&sm), sizeof(uint8_t));
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/ruby_nmatrix.c:1832:5: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
f.read(reinterpret_cast<char*>(&null16), sizeof(uint16_t));
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/ruby_nmatrix.c:1833:5: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
f.read(reinterpret_cast<char*>(&dim), sizeof(uint16_t));
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/ruby_nmatrix.c:1856:7: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
f.read(reinterpret_cast<char*>(&ndnz), sizeof(uint32_t));
data/ruby-nmatrix-0.1.0~rc3/ext/nmatrix/ruby_nmatrix.c:1857:7: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
f.read(reinterpret_cast<char*>(&length), sizeof(uint32_t));
ANALYSIS SUMMARY:
Hits = 48
Lines analyzed = 22280 in approximately 0.62 seconds (36044 lines/second)
Physical Source Lines of Code (SLOC) = 12226
Hits@level = [0] 4 [1] 20 [2] 28 [3] 0 [4] 0 [5] 0
Hits@level+ = [0+] 52 [1+] 48 [2+] 28 [3+] 0 [4+] 0 [5+] 0
Hits/KSLOC@level+ = [0+] 4.25323 [1+] 3.92606 [2+] 2.2902 [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.