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Fix ReadCompressedIndexDataValuesFromBlob().

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This commit is contained in:
wolfbeast 2017-10-06 13:23:44 +02:00 • committed by Roy Tam
commit 2c29b5a5c1
1 changed files with 10 additions and 2 deletions
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12
dom/indexedDB/ActorsParent.cpp
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@ -7,6 +7,7 @@
#include "ActorsParent.h"
#include <algorithm>
#include <stdint.h> // UINTPTR_MAX, uintptr_t
#include "FileInfo.h"
#include "FileManager.h"
#include "IDBObjectStore.h"
@ -859,6 +860,11 @@ ReadCompressedIndexDataValuesFromBlob(const uint8_t* aBlobData,
"ReadCompressedIndexDataValuesFromBlob",
js::ProfileEntry::Category::STORAGE);
if (uintptr_t(aBlobData) > UINTPTR_MAX - aBlobDataLength) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_FILE_CORRUPTED;
}
const uint8_t* blobDataIter = aBlobData;
const uint8_t* blobDataEnd = aBlobData + aBlobDataLength;
@ -878,7 +884,8 @@ ReadCompressedIndexDataValuesFromBlob(const uint8_t* aBlobData,
if (NS_WARN_IF(blobDataIter == blobDataEnd) ||
NS_WARN_IF(keyBufferLength > uint64_t(UINT32_MAX)) ||
NS_WARN_IF(blobDataIter + keyBufferLength > blobDataEnd)) {
NS_WARN_IF(keyBufferLength > uintptr_t(blobDataEnd)) ||
NS_WARN_IF(blobDataIter > blobDataEnd - keyBufferLength)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_FILE_CORRUPTED;
}
@ -896,7 +903,8 @@ ReadCompressedIndexDataValuesFromBlob(const uint8_t* aBlobData,
if (sortKeyBufferLength > 0) {
if (NS_WARN_IF(blobDataIter == blobDataEnd) ||
NS_WARN_IF(sortKeyBufferLength > uint64_t(UINT32_MAX)) ||
NS_WARN_IF(blobDataIter + sortKeyBufferLength > blobDataEnd)) {
NS_WARN_IF(sortKeyBufferLength > uintptr_t(blobDataEnd)) ||
NS_WARN_IF(blobDataIter > blobDataEnd - sortKeyBufferLength)) {
IDB_REPORT_INTERNAL_ERR();
return NS_ERROR_FILE_CORRUPTED;
}