#18697 [NEW]: HTTP POST with libcurl can cause Segmentation fault

From: glen@designsolution.co.uk Operating system: Linux PHP version: 4.2.2 PHP Bug Type: cURL related Bug description: HTTP POST with libcurl can cause Segmentation fault I'm afraid this bug may be quite tricky to track down, but here goes: This script: $ch = curl_init(); curl_setopt( $ch, CURLOPT_URL, 'http://www.foo.com/test.php' ); curl_setopt( $ch, CURLOPT_FAILONERROR, 1 ); curl_setopt( $ch, CURLOPT_FOLLOWLOCATION, 1 ); curl_setopt( $ch, CURLOPT_TIMEOUT, 3 ); // times out after 4s curl_setopt( $ch, CURLOPT_RETURNTRANSFER, 1 ); curl_setopt( $ch, CURLOPT_POST, 1 ); curl_setopt( $ch, CURLOPT_POSTFIELDS, 'postvar1=php&postvar2=is&postvar3=great' ); $result = curl_exec( $ch ); curl_close( $ch ); echo "result = '$result'"; will work 9 out of 10 times with no problem at all. However, occasionally it will crash Apache. The line in the error log says 'child pid 2154 exit signal Segmentation fault (11)' and the browser will report 'The document contains no data'. I will attempt to get a backtrace if this will help. Here is my configure line: './configure' '--with-apxs=/usr/sbin/apxs' '--with-mysql=/usr/' '--with-gd=/usr/local' '--with-png-dir=/usr/local' '--with-zlib-dir=/usr' '--with-jpeg-dir=/usr/local' '--with-crack=../cracklib-2.7' '--with-curl=/usr/local' '--with-mcrypt=/usr/local' '--with-pspell=/usr/local' My phpinfo reports curl support as: libcurl 7.9.6 (SSL 0.9.3) Thanks, Glen -- Edit bug report at http://bugs.php.net/?id=18697&edit=1 -- Fixed in CVS: http://bugs.php.net/fix.php?id=18697&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=18697&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=18697&r=needtrace Try newer version: http://bugs.php.net/fix.php?id=18697&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=18697&r=support Expected behavior: http://bugs.php.net/fix.php?id=18697&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=18697&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=18697&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=18697&r=globals