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authorMounir IDRASSI <mounir.idrassi@idrix.fr>2017-06-11 12:38:30 (GMT)
committerMounir IDRASSI <mounir.idrassi@idrix.fr>2017-06-11 15:28:21 (GMT)
commit70d083bfb2c5dfb5537c5803aef5c8627c8cb551 (patch)
treead6111c01d1583bedcc69b5d6a08c9d259f20583 /src/Common
parent1662abb707ea1f7e3e8d165a49faf32d4d2d2e39 (diff)
downloadVeraCrypt-70d083bfb2c5dfb5537c5803aef5c8627c8cb551.zip
VeraCrypt-70d083bfb2c5dfb5537c5803aef5c8627c8cb551.tar.gz
Windows: Add checks on IOCTL_DISK_GET_DRIVE_LAYOUT_EX response to make Coverity happy.
Diffstat (limited to 'src/Common')
-rw-r--r--src/Common/Dlgcode.c92
1 files changed, 48 insertions, 44 deletions
diff --git a/src/Common/Dlgcode.c b/src/Common/Dlgcode.c
index fbeb567..af3bec0 100644
--- a/src/Common/Dlgcode.c
+++ b/src/Common/Dlgcode.c
@@ -11995,62 +11995,66 @@ void UpdateMountableHostDeviceList ()
(LPVOID) buffer.data(),
(DWORD) buffer.size(),
(LPDWORD) &bytesReturned,
- NULL))
+ NULL) && (bytesReturned >= sizeof (DRIVE_LAYOUT_INFORMATION_EX)))
{
PDRIVE_LAYOUT_INFORMATION_EX layout = (PDRIVE_LAYOUT_INFORMATION_EX) buffer.data();
- for (DWORD i = 0; i < layout->PartitionCount; i++)
+ // sanity checks
+ if (layout->PartitionCount <= 256)
{
- if (layout->PartitionEntry[i].PartitionStyle == PARTITION_STYLE_MBR)
+ for (DWORD i = 0; i < layout->PartitionCount; i++)
{
- if (layout->PartitionEntry[i].Mbr.PartitionType == 0)
- continue;
+ if (layout->PartitionEntry[i].PartitionStyle == PARTITION_STYLE_MBR)
+ {
+ if (layout->PartitionEntry[i].Mbr.PartitionType == 0)
+ continue;
- bHasPartition = true;
+ bHasPartition = true;
- /* skip dynamic volume */
- if (layout->PartitionEntry[i].Mbr.PartitionType == PARTITION_LDM)
- {
- bIsDynamic = true;
- /* remove any partition that may have been added */
- while (!mountableDevices.empty() && (mountableDevices.back().SystemNumber == It->SystemNumber))
- mountableDevices.pop_back ();
- break;
+ /* skip dynamic volume */
+ if (layout->PartitionEntry[i].Mbr.PartitionType == PARTITION_LDM)
+ {
+ bIsDynamic = true;
+ /* remove any partition that may have been added */
+ while (!mountableDevices.empty() && (mountableDevices.back().SystemNumber == It->SystemNumber))
+ mountableDevices.pop_back ();
+ break;
+ }
}
- }
- if (layout->PartitionEntry[i].PartitionStyle == PARTITION_STYLE_GPT)
- {
- if (IsEqualGUID(layout->PartitionEntry[i].Gpt.PartitionType, PARTITION_ENTRY_UNUSED_GUID))
- continue;
+ if (layout->PartitionEntry[i].PartitionStyle == PARTITION_STYLE_GPT)
+ {
+ if (IsEqualGUID(layout->PartitionEntry[i].Gpt.PartitionType, PARTITION_ENTRY_UNUSED_GUID))
+ continue;
- bHasPartition = true;
+ bHasPartition = true;
- /* skip dynamic volume */
- if ( IsEqualGUID(layout->PartitionEntry[i].Gpt.PartitionType, PARTITION_LDM_METADATA_GUID)
- || IsEqualGUID(layout->PartitionEntry[i].Gpt.PartitionType, PARTITION_LDM_DATA_GUID)
- )
- {
- bIsDynamic = true;
- /* remove any partition that may have been added */
- while (!mountableDevices.empty() && (mountableDevices.back().SystemNumber == It->SystemNumber))
- mountableDevices.pop_back ();
- break;
+ /* skip dynamic volume */
+ if ( IsEqualGUID(layout->PartitionEntry[i].Gpt.PartitionType, PARTITION_LDM_METADATA_GUID)
+ || IsEqualGUID(layout->PartitionEntry[i].Gpt.PartitionType, PARTITION_LDM_DATA_GUID)
+ )
+ {
+ bIsDynamic = true;
+ /* remove any partition that may have been added */
+ while (!mountableDevices.empty() && (mountableDevices.back().SystemNumber == It->SystemNumber))
+ mountableDevices.pop_back ();
+ break;
+ }
}
- }
- WCHAR path[MAX_PATH];
- StringCbPrintfW (path, sizeof(path), L"\\\\?\\GLOBALROOT\\Device\\Harddisk%d\\Partition%d", It->SystemNumber, layout->PartitionEntry[i].PartitionNumber);
- HANDLE handle = CreateFile( path,
- 0,
- FILE_SHARE_READ | FILE_SHARE_WRITE,
- NULL,
- OPEN_EXISTING,
- 0,
- NULL );
- if (handle != INVALID_HANDLE_VALUE)
- {
- AddDeviceToList (mountableDevices, It->SystemNumber, layout->PartitionEntry[i].PartitionNumber);
- CloseHandle (handle);
+ WCHAR path[MAX_PATH];
+ StringCbPrintfW (path, sizeof(path), L"\\\\?\\GLOBALROOT\\Device\\Harddisk%d\\Partition%d", It->SystemNumber, layout->PartitionEntry[i].PartitionNumber);
+ HANDLE handle = CreateFile( path,
+ 0,
+ FILE_SHARE_READ | FILE_SHARE_WRITE,
+ NULL,
+ OPEN_EXISTING,
+ 0,
+ NULL );
+ if (handle != INVALID_HANDLE_VALUE)
+ {
+ AddDeviceToList (mountableDevices, It->SystemNumber, layout->PartitionEntry[i].PartitionNumber);
+ CloseHandle (handle);
+ }
}
}
}