Bug #12778: Segmentation Fault in win32ole on Ruby 2.3.1p112 [x64-mingw32] when creating Windows Share

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: ruby 2.3.1p112 (2016-04-26 revision 54768) [x64-mingw32]
• Backport: 2.2: DONE, 2.3: DONE

[rlaveycal (Richard Lavey)]

Whilst using ruby to create a shared folder on Windows I encountered a seg fault. This reproduces the issue on Windows 2012R2.

\Ruby23-x64\bin\ruby -rwin32ole -e 'wmi = WIN32OLE.connect("winmgmts://"); share = wmi.get("Win32_Share"); puts share.create("c:\\test2", "test", 0, 16777216, "", nil, nil)'

The stack dump is attached

c:0003 p:---- s:0018 e:000017 CFUNC  :method_missing

The cause is the empty string in the call to create(). Changing this to nil or a non-empty string works. The x86 version of Ruby is unaffected.

[suke (Masaki Suketa)]

• Backport changed from 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN to 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: DONE

Thank you for your reporting.
This issue is same as #11880.
And I confirmed it works in ruby 2.3.2p182.

[suke (Masaki Suketa)]

• Has duplicate Bug #11880: blank string makes Win32ole crush added

[suke (Masaki Suketa)]

• Backport changed from 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: DONE to 2.1: UNKNOWN, 2.2: DONE, 2.3: DONE

[suke (Masaki Suketa)]

• Status changed from Open to Closed
• Backport changed from 2.1: UNKNOWN, 2.2: DONE, 2.3: DONE to 2.2: DONE, 2.3: DONE