diff options
| -rw-r--r-- | src/script.h | 2 | ||||
| -rw-r--r-- | src/serialize.h | 9 |
2 files changed, 7 insertions, 4 deletions
diff --git a/src/script.h b/src/script.h index d490cd1824..e2b83bd6ee 100644 --- a/src/script.h +++ b/src/script.h @@ -452,7 +452,7 @@ public: memcpy(&nSize, &pc[0], 4); pc += 4; } - if (end() - pc < nSize) + if (end() - pc < 0 || (unsigned int)(end() - pc) < nSize) return false; if (pvchRet) pvchRet->assign(pc, pc + nSize); diff --git a/src/serialize.h b/src/serialize.h index 349a40bfe8..abc4f04a0d 100644 --- a/src/serialize.h +++ b/src/serialize.h @@ -809,7 +809,8 @@ public: void insert(iterator it, const_iterator first, const_iterator last) { - if (it == vch.begin() + nReadPos && last - first <= nReadPos) + assert(last - first >= 0); + if (it == vch.begin() + nReadPos && (unsigned int)(last - first) <= nReadPos) { // special case for inserting at the front when there's room nReadPos -= (last - first); @@ -821,7 +822,8 @@ public: void insert(iterator it, std::vector<char>::const_iterator first, std::vector<char>::const_iterator last) { - if (it == vch.begin() + nReadPos && last - first <= nReadPos) + assert(last - first >= 0); + if (it == vch.begin() + nReadPos && (unsigned int)(last - first) <= nReadPos) { // special case for inserting at the front when there's room nReadPos -= (last - first); @@ -834,7 +836,8 @@ public: #if !defined(_MSC_VER) || _MSC_VER >= 1300 void insert(iterator it, const char* first, const char* last) { - if (it == vch.begin() + nReadPos && last - first <= nReadPos) + assert(last - first >= 0); + if (it == vch.begin() + nReadPos && (unsigned int)(last - first) <= nReadPos) { // special case for inserting at the front when there's room nReadPos -= (last - first); |