fix: 解决安全漏洞 (#62)

guonafu · web-flow · commit 43a8e55c0a32 · 2022-09-28T09:27:35.000+08:00
Description: 解决有符号整型溢出漏洞 Log: 解决有符号整型溢出漏洞 Task: https://pms.uniontech.com/task-view-197237.html
diff --git a/service/diskoperation/partition.cpp b/service/diskoperation/partition.cpp
@@ -222,7 +222,7 @@ Byte_Value Partition::getByteLength() const
 
 Sector Partition::getSectorLength() const
 {
-    if (m_sectorStart >= 0 && m_sectorEnd >= 0) {
+    if (m_sectorStart >= 0 && m_sectorEnd >= 0 && m_sectorEnd < ULLONG_MAX) {
         return m_sectorEnd - m_sectorStart + 1;
     } else {
         return -1;

Original file line number	Diff line number	Diff line change
`@@ -222,7 +222,7 @@ Byte_Value Partition::getByteLength() const`
`222`	`222`
`223`	`223`	`Sector Partition::getSectorLength() const`
`224`	`224`	`{`
`225`		`- if (m_sectorStart >= 0 && m_sectorEnd >= 0) {`
	`225`	`+ if (m_sectorStart >= 0 && m_sectorEnd >= 0 && m_sectorEnd < ULLONG_MAX) {`
`226`	`226`	`return m_sectorEnd - m_sectorStart + 1;`
`227`	`227`	`} else {`
`228`	`228`	`return -1;`