[Bug 57027] New: GetFinalPathNameByHandleW does not handle paths exceeding MAX_PATH (260 chars)

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=57027

Bug ID: 57027
           Summary: GetFinalPathNameByHandleW does not handle paths
                    exceeding MAX_PATH (260 chars)
           Product: Wine
           Version: 9.0
          Hardware: aarch64
                OS: MacOS
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: kernel32
          Assignee: [e-mail]
          Reporter: [e-mail]

Hello,

I am writing a Rust program that calls canonicalize() on a path that is over
260 characters long. The Windows implementation of this function calls
GetFinalPathNameByHandleW.

On Windows, this works just fine and returns a valid path. With Wine on macOS, 
the call returns a win32 error code ERROR_MORE_DATA (234, 0xEA). I re-ran the
binary with WINEDEBUG=+relay and there is an NtStatus code
STATUS_BUFFER_OVERFLOW (0x80000005) coming from NtQueryObject.

I believe this is because the buffer allocated in Wine's implementation of
GetFinalPathNameByHandleW is not large enough for the ObjectInformation
NtQueryObject is trying to return. Should GetFinalPathNameByHandleW fall back
to a dynamically allocated buffer in this situation?

Thank you!

[Bug 57027] GetFinalPathNameByHandleW does not handle paths exceeding MAX_PATH (260 chars)

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=57027

--- Comment #1 from Sameer Puri  ---
Created attachment 76877
  --> https://bugs.winehq.org/attachment.cgi?id=76877
Relevant calls made when run with WINEDEBUG=+relay

[Bug 57027] GetFinalPathNameByHandleW does not handle paths exceeding MAX_PATH (260 chars)

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=57027

Fabian Maurer  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[e-mail]

[Bug 57027] GetFinalPathNameByHandleW does not handle paths exceeding MAX_PATH (260 chars)

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=57027

Bernhard Übelacker  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[e-mail]

--- Comment #2 from Bernhard Übelacker  ---
Submitted merge request:
https://gitlab.winehq.org/wine/wine/-/merge_requests/8240

[Bug 57027] GetFinalPathNameByHandleW does not handle paths exceeding MAX_PATH (260 chars)

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=57027

Bernhard Übelacker  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |FIXED
      Fixed by SHA1|                            |e76a49ae4e056123eaf42febac9
                   |                            |8f3be298e51fb

--- Comment #3 from Bernhard Übelacker  ---
The merge request got accepted, so this bug should no longer appear
with current git or the next release wine-10.14.
Resolving fixed.

[Bug 57027] GetFinalPathNameByHandleW does not handle paths exceeding MAX_PATH (260 chars)

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=57027

Alexandre Julliard  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

--- Comment #4 from Alexandre Julliard  ---
Closing bugs fixed in 10.14.