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/lz4tools-1.3.1.1/src/lz4.c
Examining data/lz4tools-1.3.1.1/src/lz4.h
Examining data/lz4tools-1.3.1.1/src/lz4frame.c
Examining data/lz4tools-1.3.1.1/src/lz4frame.h
Examining data/lz4tools-1.3.1.1/src/lz4frame_static.h
Examining data/lz4tools-1.3.1.1/src/lz4hc.c
Examining data/lz4tools-1.3.1.1/src/lz4hc.h
Examining data/lz4tools-1.3.1.1/src/python-lz4f.h
Examining data/lz4tools-1.3.1.1/src/xxhash.c
Examining data/lz4tools-1.3.1.1/src/xxhash.h
Examining data/lz4tools-1.3.1.1/src/python-lz4f.c
FINAL RESULTS:
data/lz4tools-1.3.1.1/src/lz4.c:148:5: [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(&val16, memPtr, 2);
data/lz4tools-1.3.1.1/src/lz4.c:169:9: [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(memPtr, &value, 2);
data/lz4tools-1.3.1.1/src/lz4.c:182:5: [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(&val32, memPtr, 4);
data/lz4tools-1.3.1.1/src/lz4.c:189:5: [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(&val64, memPtr, 8);
data/lz4tools-1.3.1.1/src/lz4.c:202:59: [2] (buffer) memcpy:
Does not check for buffer overflows when copying to destination (CWE-120).
Make sure destination can always hold the source data.
static void LZ4_copy4(void* dstPtr, const void* srcPtr) { memcpy(dstPtr, srcPtr, 4); }
data/lz4tools-1.3.1.1/src/lz4.c:204:59: [2] (buffer) memcpy:
Does not check for buffer overflows when copying to destination (CWE-120).
Make sure destination can always hold the source data.
static void LZ4_copy8(void* dstPtr, const void* srcPtr) { memcpy(dstPtr, srcPtr, 8); }
data/lz4tools-1.3.1.1/src/lz4.c:648:9: [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(op, anchor, lastRun);
data/lz4tools-1.3.1.1/src/lz4.c:884:9: [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(op, anchor, lastRunSize);
data/lz4tools-1.3.1.1/src/lz4.c:1186:13: [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(op, ip, length);
data/lz4tools-1.3.1.1/src/lz4.c:1228:17: [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(op, dictEnd - copySize, copySize);
data/lz4tools-1.3.1.1/src/lz4.c:1239:21: [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(op, lowPrefix, copySize);
data/lz4tools-1.3.1.1/src/lz4frame.c:509:9: [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(cSizePtr+4, src, srcSize);
data/lz4tools-1.3.1.1/src/lz4frame.c:590:13: [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(cctxPtr->tmpIn + cctxPtr->tmpInSize, srcBuffer, srcSize);
data/lz4tools-1.3.1.1/src/lz4frame.c:599:13: [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(cctxPtr->tmpIn + cctxPtr->tmpInSize, srcBuffer, sizeToCopy);
data/lz4tools-1.3.1.1/src/lz4frame.c:653:9: [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(cctxPtr->tmpIn, srcPtr, sizeToCopy);
data/lz4tools-1.3.1.1/src/lz4frame.c:859:13: [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(dctxPtr->header, srcPtr, srcSize);
data/lz4tools-1.3.1.1/src/lz4frame.c:994:9: [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(dctxPtr->tmpOutBuffer + preserveSize - copySize, oldDictEnd - copySize, copySize);
data/lz4tools-1.3.1.1/src/lz4frame.c:1006:13: [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(dctxPtr->tmpOutBuffer, dctxPtr->dict + dctxPtr->dictSize - preserveSize, preserveSize);
data/lz4tools-1.3.1.1/src/lz4frame.c:1009:9: [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(dctxPtr->tmpOutBuffer + dctxPtr->dictSize, dstPtr, dstSize);
data/lz4tools-1.3.1.1/src/lz4frame.c:1018:9: [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(dctxPtr->tmpOutBuffer, dctxPtr->dict + dctxPtr->dictSize - preserveSize, preserveSize);
data/lz4tools-1.3.1.1/src/lz4frame.c:1019:9: [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(dctxPtr->tmpOutBuffer + preserveSize, dstPtr, dstSize);
data/lz4tools-1.3.1.1/src/lz4frame.c:1099:17: [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(dctxPtr->header + dctxPtr->tmpInSize, srcPtr, sizeToCopy);
data/lz4tools-1.3.1.1/src/lz4frame.c:1135:17: [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(dctxPtr->tmpIn + dctxPtr->tmpInSize, srcPtr, sizeToCopy);
data/lz4tools-1.3.1.1/src/lz4frame.c:1176:17: [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(dstPtr, srcPtr, sizeToCopy);
data/lz4tools-1.3.1.1/src/lz4frame.c:1215:17: [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(dctxPtr->tmpIn + dctxPtr->tmpInSize, srcPtr, sizeToCopy);
data/lz4tools-1.3.1.1/src/lz4frame.c:1280:29: [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(dctxPtr->tmpOutBuffer, dctxPtr->dict + dctxPtr->dictSize - 64 KB, 64 KB);
data/lz4tools-1.3.1.1/src/lz4frame.c:1308:17: [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(dstPtr, dctxPtr->tmpOut + dctxPtr->tmpOutStart, sizeToCopy);
data/lz4tools-1.3.1.1/src/lz4frame.c:1356:17: [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(dctxPtr->tmpIn + dctxPtr->tmpInSize, srcPtr, sizeToCopy);
data/lz4tools-1.3.1.1/src/lz4frame.c:1400:17: [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(dctxPtr->header + dctxPtr->tmpInSize, srcPtr, sizeToCopy);
data/lz4tools-1.3.1.1/src/lz4frame.c:1451:13: [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(dctxPtr->tmpOutBuffer + preserveSize - copySize, oldDictEnd - copySize, copySize);
data/lz4tools-1.3.1.1/src/lz4frame.c:1462:13: [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(dctxPtr->tmpOutBuffer, oldDictEnd - newDictSize, newDictSize);
data/lz4tools-1.3.1.1/src/lz4hc.c:529:9: [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(op, anchor, iend - anchor);
data/lz4tools-1.3.1.1/src/xxhash.c:95:76: [2] (buffer) memcpy:
Does not check for buffer overflows when copying to destination (CWE-120).
Make sure destination can always hold the source data.
static void* XXH_memcpy(void* dest, const void* src, size_t size) { return memcpy(dest,src,size); }
data/lz4tools-1.3.1.1/src/xxhash.c:119:5: [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(&val32, memPtr, 4);
data/lz4tools-1.3.1.1/src/xxhash.c:126:5: [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(&val64, memPtr, 8);
ANALYSIS SUMMARY:
Hits = 35
Lines analyzed = 6283 in approximately 0.20 seconds (31351 lines/second)
Physical Source Lines of Code (SLOC) = 3988
Hits@level = [0] 2 [1] 0 [2] 35 [3] 0 [4] 0 [5] 0
Hits@level+ = [0+] 37 [1+] 35 [2+] 35 [3+] 0 [4+] 0 [5+] 0
Hits/KSLOC@level+ = [0+] 9.27783 [1+] 8.77633 [2+] 8.77633 [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.