Your message dated Sun, 16 Aug 2009 16:47:07 +0000
with message-id <[email protected]>
and subject line Bug#539626: fixed in cppcheck 1.35-1
has caused the Debian Bug report #539626,
regarding false memleak positive with realloc()
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
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--
539626: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=539626
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: cppcheck
Version: 1.34-1
cppcheck erroneously reports e memory leak when used by realloc in the code
snippet shown below.
cppcheck -a test.c
Checking test.c...
[test.c:27]: (all) Memory leak: buf
test.c
~~~~
#include <stdio.h>
#include <stdlib.h>
void func()
{
char * buf, * new_buf;
buf = calloc( 10000, sizeof(char) );
if ( ! ( new_buf = realloc ( (char*)buf, 20000) ) )
free(buf); // ENOMEM
else
free(new_buf); // OK
}
int main()
{
while(1)
func();
return 0;
}
If the area pointed to by ptr was moved by realloc(), or in other words the
the reallocation succeeds, a free(ptr) is called internally, hence there is no
a memory leak with `buf', and we should free(new_buf).
If the reallocation fails the original block is left untouched, i.e. not freed
or moved, hence we should free(buf), and should *not* call free(new_buf);
thanks
--
pub 4096R/0E4BD0AB 2003-03-18 <people.fccf.net/danchev/key pgp.mit.edu>
--- End Message ---
--- Begin Message ---
Source: cppcheck
Source-Version: 1.35-1
We believe that the bug you reported is fixed in the latest version of
cppcheck, which is due to be installed in the Debian FTP archive:
cppcheck_1.35-1.diff.gz
to pool/main/c/cppcheck/cppcheck_1.35-1.diff.gz
cppcheck_1.35-1.dsc
to pool/main/c/cppcheck/cppcheck_1.35-1.dsc
cppcheck_1.35-1_i386.deb
to pool/main/c/cppcheck/cppcheck_1.35-1_i386.deb
cppcheck_1.35.orig.tar.gz
to pool/main/c/cppcheck/cppcheck_1.35.orig.tar.gz
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Reijo Tomperi <[email protected]> (supplier of updated cppcheck
package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Format: 1.8
Date: Sun, 16 Aug 2009 18:37:26 +0300
Source: cppcheck
Binary: cppcheck
Architecture: source i386
Version: 1.35-1
Distribution: unstable
Urgency: low
Maintainer: Reijo Tomperi <[email protected]>
Changed-By: Reijo Tomperi <[email protected]>
Description:
cppcheck - Tool for static C/C++ code analysis
Closes: 532820 537362 539626
Changes:
cppcheck (1.35-1) unstable; urgency=low
.
* New upstream release
* False positive fixed. Closes: #539626
* Infinite loop fixed. Closes: #537362
* Several "invalid number of character" fixes. Closes: #532820
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