Opened 11 years ago

Last modified 10 years ago

#5902 new Bugs

Division by zero when requesting null sized buffers

Reported by: Étienne Dupuis <e.dupuis@…> Owned by: John Maddock
Milestone: To Be Determined Component: pool
Version: Boost 1.47.0 Severity: Problem
Keywords: Cc:

Description

The following code yields a division by zero in pool::malloc_need_resize() : 

	boost::pool<> p(0, 1, 1);
	p.malloc();

The code above requests at most one buffer of size zero. The expected behavior would be one of (i) malloc fails, (ii) malloc returns a null sized buffer.

Regards

Change History (5)

comment:1 by Étienne Dupuis <e.dupuis@…>, 11 years ago

Summary: Division by zero when requesting null sized buffes → Division by zero when requesting null sized buffers

comment:2 by edupuis, 10 years ago

Owner: changed from Chris Newbold to edupuis
Status: new → assigned

comment:3 by edupuis, 10 years ago

Resolution: → fixed
Status: assigned → closed

Revision: 78310 Author: edupuis Date: mercredi 2 mai 2012 22:19:00 Message: Prevent division by zero when requesting null sized buffers. Fixes #5902.

Modified : /sandbox/pool/boost/pool/pool.hpp Added : /sandbox/pool/libs/pool/test/test_bug_5902.cpp

comment:4 by edupuis, 10 years ago

Resolution: fixed
Status: closed → reopened

comment:5 by edupuis, 10 years ago

Owner: changed from edupuis to John Maddock
Status: reopened → new

​https://svn.boost.org/svn/boost/sandbox/pool at revision 79460 contains a solution for tickets #3789, #5902, #6561, #6610, #6701, #6718, #6865 and #6867. Related test cases are also present.

​https://svn.boost.org/svn/boost/sandbox/pool at revision 79460 does not contain any other new features or modifications other than those related to the above tickets.

Boost.Pool currently has no maintainer and is thus orphaned.

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