Re: Bug #44872 canary mismatch on efree() - heap overflow detected

Hi, On the Ubuntu server (where the problems occured) I'm not good enough to figure out which version of FreeTDS that is boundled with PHP, but these packages are installed with PHP: php5-sybase_5.2.4-2ubuntu5.3_i386.deb php5-mssql_5.2.4-2ubuntu5.3_i386.deb On the Slackware platform we're apparently using version 0.64, I notice now that there's a newer version 0.82 out. Could it be that Ubuntu has upgraded to 0.82 which causes the problem? Greetings, Krister Karlström Antony Dovgal wrote:

On 15.10.2008 12:06, Krister Karlström wrote:

Thanks for the advice Derick, valgrind gave this output with USE_ZEND_ALLOC set to 0:

==29752== Invalid write of size 1

==29752==    at 0x4024D57: memcpy (mc_replace_strmem.c:402)
==29752==    by 0x406B0C1: dbconvert (in /usr/lib/libsybdb.so.5.0.0)
==29752==    by 0x80997F9: php_mssql_get_column_content_with_type (php_mssql.c:912)
==29752==    by 0x809A791: _mssql_fetch_batch (php_mssql.c:1140)
==29752==    by 0x809AF19: zif_mssql_query (php_mssql.c:1263)

That is very helpful, thanks. Which version of FreeTDS do you use?

-- * Ing. Krister Karlström, Zend Certified Engineer * * Systemutvecklare, IT-Centralen * * Arcada - Nylands Svenska Yrkeshögskola * * Jan-Magnus Janssons plats 1, 00550 Helsingfors, Finland * * Tel: +358(20)7699699 GSM: +358(50)5328390 * * E-mail: krister.karlstrom@arcada.fi *