New subject: [Bug 59671] Inconsistent FILE_ATTRIBUTE_REPARSE_POINT on container bind-mounts

April 18, 2026

      http://bugs.winehq.org/show_bug.cgi?id=59671

            Bug ID: 59671
           Summary: Inconsistent FILE_ATTRIBUTE_REPARSE_POINT on container
                    bind-mounts
           Product: Wine
           Version: 11.0
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: wine-bugs@list.winehq.org
          Reporter: me@a2va.dev
      Distribution: ---

Created attachment 80762
  --> http://bugs.winehq.org/attachment.cgi?id=80762
Rust executable

When running Wine inside a container where the working directory is a Linux
mount point (bind-mounted), Wine identifies the directory as a symlink/reparse
point, but fails to satisfy a DeviceIoControl request for
FSCTL_GET_REPARSE_POINT.
This causes Rust's std::fs::read_link to fail with ERROR_NOT_A_REPARSE_POINT
(4390).

```
use std::env;
use std::path::PathBuf;

fn main() {
    let target = env::args().nth(1).unwrap_or_else(|| ".".to_string());
    let path = PathBuf::from(&target);

    if path.is_symlink() {
        println!("Is symlink: {}", path.display());
        path.read_link().unwrap();
    }
}
```

Output of the program:
```
Z:\home\a2va\Documents\temp\wine-readlink>wine-readlink.exe
Is symlink: .

thread 'main' (104) panicked at src\main.rs:10:26:
called `Result::unwrap()` on an `Err` value: Os { code: 4390, kind:
Uncategorized, message: "OS Error 4390 (FormatMess
ageW() returned error 317)" }
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
```

Here is the Dockerfile, with the command to reproduce for both podman and
docker.
```FROM fedora:43
RUN dnf install -y \
    wine \
    wine-core \
    wine-common

ENV WINEPREFIX=/opt/wineprefix
RUN mkdir -p "$WINEPREFIX"
RUN wineboot --init
RUN wineserver -w

# ENV WINEDEBUG=+relay,+file,+ioctl

CMD ["wine", "cmd"]
# podman build -f Dockerfile -t wine-repro:latest
# podman run -it -w "$(pwd)" -v "$(pwd):$(pwd):rbind,z" wine-repro:latest
# podman run -it -w "$(pwd)" -v "$(pwd):$(pwd):rbind,z" wine-repro:latest  wine
read-link.exe > wine.log 2>&1

# docker build -f Dockerfile -t wine-repro:latest .
# docker run -it -w "$(pwd)" -v "$(pwd):$(pwd)" wine-repro:latest
# docker run -it -w "$(pwd)" -v "$(pwd):$(pwd)" wine-repro:latest wine
read-link.exe > wine.log 2>&1
```
It's also reproducible in C, with CreateFile and DeviceIoControl.

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[Bug 59671] New: Inconsistent FILE_ATTRIBUTE_REPARSE_POINT on container bind-mounts

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