#23116 [NEW]: call to curl_getinfo() causes SIGSEGV

From: shawn at wnsi dot net Operating system: Linux PHP version: 4.3.1 PHP Bug Type: cURL related Bug description: call to curl_getinfo() causes SIGSEGV My script ( using php-cli ) loops over a result set and makes a curl post for each row. It retreives all the data from the curl post for error detection and performance data. After succesfully executing a random ( but usually between 50-120 ) number of posts the script will segfault on the call to add_assoc_string_ex() called from within curl_getinfo(). Re-running the script from where it left off will result in another 50-120 succesful posts and another crash. In addition I have been able to determine that it is not related to the record being used as the post fields or the response from the receiving end of the post. Sniffing from the side receiving the post that it crashed on shows that it completed the communication succesfully before the crash. The problem record goes through fine on the next run. Removing the call to curl_getinfo() seems to resolve the problem. System Details....... ################################# [root@rambler root]# uname -a Linux rambler.wnsglobal.net 2.4.7-10smp #1 SMP Thu Sep 6 16:16:16 EDT 2001 i686 unknown [root@rambler root]# cat /etc/issue Red Hat Linux release 7.2 (Enigma) Kernel \r on an \m ################################# PHP Details...... ################################# ./configure --with-xml --enable-ftp --with-curl=/usr/local --with-sybase=/opt/sybase --with-apxs=/usr/local/apache/bin/apxs ################################# #cURL details ################################# [root@rambler root]# curl --version curl 7.10.3 (i686-pc-linux-gnu) libcurl/7.10.3 OpenSSL/0.9.7 zlib/1.1.3 ################################# #Script Details ################################# Selects a large result set from mssql ( ~3K rows ) for each row it assembles an array to be used as the post fields for curl... curl commands are as follows... ################################# $url_id = curl_init($postLoc); curl_setopt( $url_id, CURLOPT_REFERER, $ref ); curl_setopt( $url_id, CURLOPT_TIMEOUT, '45' ); curl_setopt( $url_id, CURLOPT_MUTE, 1 ); curl_setopt( $url_id, CURLOPT_POST, 1 ); curl_setopt( $url_id, CURLOPT_POSTFIELDS, $post_fields ); curl_setopt( $url_id, CURLOPT_RETURNTRANSFER,1); $postResult = curl_exec( $url_id ); $curl_results = curl_getinfo($url_id); $curl_error = curl_error($url_id); $curl_errno = curl_errno($url_id); curl_close ( $url_id ); ################################# #Back Trace ( recreated many times. Always the same. ) ################################# Program received signal SIGSEGV, Segmentation fault. 0x08128099 in add_assoc_string_ex (arg=0x824acf4, key=0x81544ba "content_type", key_len=13, str=0x0, duplicate=1) at /usr/src/php-4.3.0/Zend/zend_API.c:671 671 ZVAL_STRING(tmp, str, duplicate); (gdb) bt #0 0x08128099 in add_assoc_string_ex (arg=0x824acf4, key=0x81544ba "content_type", key_len=13, str=0x0, duplicate=1) at /usr/src/php-4.3.0/Zend/zend_API.c:671 #1 0x08066aff in zif_curl_getinfo (ht=1, return_value=0x824acf4, this_ptr=0x0, return_value_used=1) at /usr/src/php-4.3.0/ext/curl/curl.c:1042 #2 0x08138f4c in execute (op_array=0x81cb828) at /usr/src/php-4.3.0/Zend/zend_execute.c:1596 #3 0x0813910a in execute (op_array=0x81bfedc) at /usr/src/php-4.3.0/Zend/zend_execute.c:1640 #4 0x08126b5c in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /usr/src/php-4.3.0/Zend/zend.c:864 #5 0x08100abd in php_execute_script (primary_file=0xbffffa60) at /usr/src/php-4.3.0/main/main.c:1573 #6 0x081414c0 in main (argc=2, argv=0xbffffb04) at /usr/src/php-4.3.0/sapi/cli/php_cli.c:746 #7 0x402b1507 in __libc_start_main (main=0x8140b40 <main>, argc=2, ubp_av=0xbffffb04, init=0x806243c <_init>, fini=0x8141a80 <_fini>, rtld_fini=0x4000dc14 <_dl_fini>, stack_end=0xbffffafc) at ../sysdeps/generic/libc-start.c:129 -- Edit bug report at http://bugs.php.net/?id=23116&edit=1 -- Try a CVS snapshot: http://bugs.php.net/fix.php?id=23116&r=trysnapshot Fixed in CVS: http://bugs.php.net/fix.php?id=23116&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=23116&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=23116&r=needtrace Try newer version: http://bugs.php.net/fix.php?id=23116&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=23116&r=support Expected behavior: http://bugs.php.net/fix.php?id=23116&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=23116&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=23116&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=23116&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=23116&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=23116&r=dst IIS Stability: http://bugs.php.net/fix.php?id=23116&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=23116&r=gnused