diff options
| -rw-r--r-- | OvmfPkg/VirtioFsDxe/Helpers.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/OvmfPkg/VirtioFsDxe/Helpers.c b/OvmfPkg/VirtioFsDxe/Helpers.c index 443bbdc..b81c04e 100644 --- a/OvmfPkg/VirtioFsDxe/Helpers.c +++ b/OvmfPkg/VirtioFsDxe/Helpers.c @@ -2244,12 +2244,19 @@ VirtioFsGetFuseSizeUpdate ( since the Epoch). Otherwise, Mtime is not written
to.
- @retval EFI_SUCCESS Output parameters have been set successfully.
-
- @retval EFI_ACCESS_DENIED NewInfo requests changing both CreateTime and
- ModificationTime, but to values that differ from
- each other. The Virtio Filesystem device does not
- support this.
+ @retval EFI_SUCCESS Output parameters have been set successfully.
+
+ @retval EFI_INVALID_PARAMETER At least one of the CreateTime, LastAccessTime
+ and ModificationTime fields in NewInfo
+ represents an actual update relative to the
+ current state of the file (expressed in Info),
+ but does not satisfy the UEFI spec
+ requirements on EFI_TIME.
+
+ @retval EFI_ACCESS_DENIED NewInfo requests changing both CreateTime and
+ ModificationTime, but to values that differ
+ from each other. The Virtio Filesystem device
+ does not support this.
**/
EFI_STATUS
VirtioFsGetFuseTimeUpdates (
@@ -2285,6 +2292,9 @@ VirtioFsGetFuseTimeUpdates ( CompareMem (NewTime[Idx], Time[Idx], sizeof (EFI_TIME)) == 0) {
Change[Idx] = FALSE;
} else {
+ if (!IsTimeValid (NewTime[Idx])) {
+ return EFI_INVALID_PARAMETER;
+ }
Change[Idx] = TRUE;
Seconds[Idx] = EfiTimeToEpoch (NewTime[Idx]);
}
|