Opened 8 years ago

Closed 7 years ago

#4250 closed Bugs (fixed)

Interprocess tmp folder permission denied problem

Reported by: josephsieh@… Owned by: Ion Gaztañaga
Milestone: Boost 1.45.0 Component: interprocess
Version: Boost 1.44.0 Severity: Problem
Keywords: Cc:


shmData = new shared_memory_object (

create_only, shmDataName, read_write


When shared_memory_object is created, IPC will create a tmp folder "boost_interprocess" in "C:\ProgramData?" folder under Windows VISTA+, and in "/tmp" under Mac. Then start to create a file under "boost_interprocess" directory.

The issue happens when user A call the IPC (C:\ProgramData?\boost_interprocess" will be created), then switch to another user B account, try to call the IPC again, then IPC will fail, due to "boost_interprocess" is already created by user A, therefore, user B has no permission to write anything into created "boost_interprocess" folder.

A quick fix of this problem might be modification of "inline void get_tmp_base_dir(std::string &tmp_name)" function in "boost/interprocess/detail/tmp_dir_helpers.hpp".

In line 103, instead of using the same "/boost_interprocess", maybe "boost_interprocess_$username" will be a solution for multiple users problem.

This issue exists at least from 1.40.0 to 1.43.0.

Attachments (0)

Change History (1)

comment:1 Changed 7 years ago by Ion Gaztañaga

Milestone: Boost 1.43.0Boost-1.45.0
Resolution: fixed
Status: newclosed

Fixed for Boost 1.45 in release branch (folder is created without all access).

Modify Ticket

Change Properties
Set your email in Preferences
as closed The owner will remain Ion Gaztañaga.
The resolution will be deleted.

Add Comment

E-mail address and name can be saved in the Preferences.

Note: See TracTickets for help on using tickets.