Merging upstream version 1.69.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 8 insertions, 1 deletions

diff --git a/library/std/src/sys/windows/fs.rs b/library/std/src/sys/windows/fs.rs
index 378098038..d2c597664 100644
--- a/library/std/src/sys/windows/fs.rs
+++ b/library/std/src/sys/windows/fs.rs
@@ -1266,7 +1266,12 @@ fn metadata(path: &Path, reparse: ReparsePoint) -> io::Result<FileAttr> {
     // If the fallback fails for any reason we return the original error.
     match File::open(path, &opts) {
         Ok(file) => file.file_attr(),
-        Err(e) if e.raw_os_error() == Some(c::ERROR_SHARING_VIOLATION as _) => {
+        Err(e)
+            if [Some(c::ERROR_SHARING_VIOLATION as _), Some(c::ERROR_ACCESS_DENIED as _)]
+                .contains(&e.raw_os_error()) =>
+        {
+            // `ERROR_ACCESS_DENIED` is returned when the user doesn't have permission for the resource.
+            // One such example is `System Volume Information` as default but can be created as well
             // `ERROR_SHARING_VIOLATION` will almost never be returned.
             // Usually if a file is locked you can still read some metadata.
             // However, there are special system files, such as
@@ -1393,6 +1398,8 @@ fn symlink_junction_inner(original: &Path, junction: &Path) -> io::Result<()> {
         let mut data = Align8([MaybeUninit::<u8>::uninit(); c::MAXIMUM_REPARSE_DATA_BUFFER_SIZE]);
         let data_ptr = data.0.as_mut_ptr();
         let db = data_ptr.cast::<c::REPARSE_MOUNTPOINT_DATA_BUFFER>();
+        // Zero the header to ensure it's fully initialized, including reserved parameters.
+        *db = mem::zeroed();
         let buf = ptr::addr_of_mut!((*db).ReparseTarget).cast::<c::WCHAR>();
         let mut i = 0;
         // FIXME: this conversion is very hacky