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WIndows driver: add check for failed memory allocation

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This commit is contained in:
Mounir IDRASSI
2018-08-14 23:24:30 +02:00
parent 17af27bc7f
commit 6cdcbac305
1 changed files with 11 additions and 8 deletions
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19
src/Driver/Ntdriver.c
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@@ -3734,16 +3734,19 @@ NTSTATUS MountDevice (PDEVICE_OBJECT DeviceObject, MOUNT_STRUCT *mount)
IO_STATUS_BLOCK ioblock; IO_STATUS_BLOCK ioblock;
ULONG labelInfoSize = sizeof(FILE_FS_LABEL_INFORMATION) + (labelEffectiveLen * sizeof(WCHAR)); ULONG labelInfoSize = sizeof(FILE_FS_LABEL_INFORMATION) + (labelEffectiveLen * sizeof(WCHAR));
FILE_FS_LABEL_INFORMATION* labelInfo = (FILE_FS_LABEL_INFORMATION*) TCalloc (labelInfoSize); FILE_FS_LABEL_INFORMATION* labelInfo = (FILE_FS_LABEL_INFORMATION*) TCalloc (labelInfoSize);
labelInfo->VolumeLabelLength = labelEffectiveLen * sizeof(WCHAR); if (labelInfo)
memcpy (labelInfo->VolumeLabel, mount->wszLabel, labelInfo->VolumeLabelLength);
if (STATUS_SUCCESS == ZwSetVolumeInformationFile (volumeHandle, &ioblock, labelInfo, labelInfoSize, FileFsLabelInformation))
{ {
mount->bDriverSetLabel = TRUE; labelInfo->VolumeLabelLength = labelEffectiveLen * sizeof(WCHAR);
NewExtension->bDriverSetLabel = TRUE; memcpy (labelInfo->VolumeLabel, mount->wszLabel, labelInfo->VolumeLabelLength);
}
TCfree(labelInfo); if (STATUS_SUCCESS == ZwSetVolumeInformationFile (volumeHandle, &ioblock, labelInfo, labelInfoSize, FileFsLabelInformation))
{
mount->bDriverSetLabel = TRUE;
NewExtension->bDriverSetLabel = TRUE;
}
TCfree(labelInfo);
}
} }
__except (EXCEPTION_EXECUTE_HANDLER) __except (EXCEPTION_EXECUTE_HANDLER)
{ {