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Bug #39599 curl_exec crashes
Submitted: 2006-11-22 23:57 UTC Modified: 2006-11-29 21:11 UTC
From: ken at smallboxsoftware dot net Assigned:
Status: Not a bug Package: URL related
PHP Version: 5.2.0 OS: Centos Linux
Private report: No CVE-ID: None
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 [2006-11-22 23:57 UTC] ken at smallboxsoftware dot net 
Description:
------------
curl_exec crashes when connecting to a URL via SSL

GDB returns the following information: 

Starting program: /usr/local/bin/php test
[Thread debugging using libthread_db enabled]
[New Thread -1208211776 (LWP 24168)]
*** glibc detected *** free(): invalid pointer: 0x00291c80 ***

Program received signal SIGABRT, Aborted.
[Switching to Thread -1208211776 (LWP 24168)]
0x004737a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2


PHP compiled as follows:

'./configure' '--with-gd' '--with-ttf' '--with-freetype-dir=/usr/lib/' '--with-mysql' '--enable-ftp' '--with-zlib' '--with-png-dir=/usr/lib/' '--with-jpeg-dir=/usr/lib/' '--enable-mbstring' '--with-imap=/usr/' '--with-kerberos' '--with-imap-ssl' '--with-curl=/usr/lib' '--with-cyrus' '--with-mysqli' '--enable-debug'

Reproduce code:
---------------
<?php 
 $url = "https://www.mysite.com";
 $ch = curl_init();
 curl_setopt($ch, CURLOPT_URL,$url);
 $response=curl_exec($ch);
?>

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 [2006-11-23 10:11 UTC] tony2001@php.net 
Thank you for this bug report. To properly diagnose the problem, we
need a backtrace to see what is happening behind the scenes. To
find out how to generate a backtrace, please read
http://bugs.php.net/bugs-generating-backtrace.php for *NIX and
http://bugs.php.net/bugs-generating-backtrace-win32.php for Win32

Once you have generated a backtrace, please submit it to this bug
report and change the status back to "Open". Thank you for helping
us make PHP better.
 [2006-11-26 19:22 UTC] ken at smallboxsoftware dot net 
#0  0x004737a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x0092c7a5 in raise () from /lib/tls/libc.so.6
#2  0x0092e209 in abort () from /lib/tls/libc.so.6
#3  0x0096071a in __libc_message () from /lib/tls/libc.so.6
#4  0x00966fbf in _int_free () from /lib/tls/libc.so.6
#5  0x0096733a in free () from /lib/tls/libc.so.6
#6  0x003070e7 in operator delete () from /usr//lib/libmysqlclient.so.15
#7  0x002fee18 in yaSSL::ysDelete<yaSSL::SSL_METHOD> ()
   from /usr//lib/libmysqlclient.so.15
#8  0x0030a74e in yaSSL::SSL_CTX::~SSL_CTX () from /usr//lib/libmysqlclient.so.15
#9  0x002fead0 in yaSSL::ysDelete<yaSSL::SSL_CTX> () from /usr//lib/libmysqlclient.so.15
#10 0x002faf9b in SSL_CTX_free () from /usr//lib/libmysqlclient.so.15
#11 0x0063ea90 in Curl_SSL_Close () from /usr//lib/libcurl.so.3
#12 0x00637f42 in Curl_disconnect () from /usr//lib/libcurl.so.3
#13 0x0063a335 in Curl_connect () from /usr//lib/libcurl.so.3
#14 0x0064738d in Curl_follow () from /usr//lib/libcurl.so.3
#15 0x006475b4 in Curl_perform () from /usr//lib/libcurl.so.3
#16 0x00647d02 in curl_easy_perform () from /usr//lib/libcurl.so.3
#17 0x080b5f7d in zif_curl_exec (ht=1, return_value=0xb7f8ef54, return_value_ptr=0x0,
    this_ptr=0x0, return_value_used=1)
    at /usr/local/src/php-5.2.0/ext/curl/interface.c:1656
#18 0x0836c551 in zend_do_fcall_common_helper_SPEC (execute_data=0xbfe10f80)
    at /usr/local/src/php-5.2.0/Zend/zend_vm_execute.h:200
#19 0x08370f81 in ZEND_DO_FCALL_SPEC_CONST_HANDLER (execute_data=0xbfe10f80)
    at /usr/local/src/php-5.2.0/Zend/zend_vm_execute.h:1681
#20 0x0836c166 in execute (op_array=0xb7f8e1b4)
    at /usr/local/src/php-5.2.0/Zend/zend_vm_execute.h:92
#21 0x0834e890 in zend_execute_scripts (type=8, retval=0x0, file_count=3)
    at /usr/local/src/php-5.2.0/Zend/zend.c:1097
#22 0x08308d72 in php_execute_script (primary_file=0xbfe13350)
    at /usr/local/src/php-5.2.0/main/main.c:1758
#23 0x083b2845 in main (argc=2, argv=0xbfe13434)
    at /usr/local/src/php-5.2.0/sapi/cgi/cgi_main.c:1625
 [2006-11-27 09:56 UTC] tony2001@php.net 
Not PHP problem.
See http://bugs.mysql.com/19817
 [2006-11-29 21:08 UTC] ken at smallboxsoftware dot net 
This is probably still bogus, but upgraded mysql which has fixed thefirst crash - to reveal a second one. 

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1208875328 (LWP 2552)]
0x006a1377 in SSL_SESSION_new () from /lib/libssl.so.4
(gdb) bt
#0  0x006a1377 in SSL_SESSION_new () from /lib/libssl.so.4
#1  0x006a214a in SSL_CTX_get_timeout () from /lib/libssl.so.4
#2  0x00b1556e in lh_retrieve () from /lib/libcrypto.so.4
#3  0x006a21f7 in SSL_CTX_flush_sessions () from /lib/libssl.so.4
#4  0x0069e1a3 in SSL_CTX_free () from /lib/libssl.so.4
#5  0x0063ea90 in Curl_SSL_Close () from /usr//lib/libcurl.so.3
#6  0x00637f42 in Curl_disconnect () from /usr//lib/libcurl.so.3
#7  0x00639848 in Curl_done () from /usr//lib/libcurl.so.3
#8  0x0064771e in Curl_perform () from /usr//lib/libcurl.so.3
#9  0x00647d02 in curl_easy_perform () from /usr//lib/libcurl.so.3
#10 0x080b5f7d in zif_curl_exec (ht=1, return_value=0xb7eea3a4, return_value_ptr=0x0,
    this_ptr=0x0, return_value_used=1)
    at /usr/local/src/php-5.2.0/ext/curl/interface.c:1656
#11 0x0836c551 in zend_do_fcall_common_helper_SPEC (execute_data=0xbff52850)
    at /usr/local/src/php-5.2.0/Zend/zend_vm_execute.h:200
#12 0x08370f81 in ZEND_DO_FCALL_SPEC_CONST_HANDLER (execute_data=0xbff52850)
    at /usr/local/src/php-5.2.0/Zend/zend_vm_execute.h:1681
#13 0x0836c166 in execute (op_array=0xb7ee81b4)
    at /usr/local/src/php-5.2.0/Zend/zend_vm_execute.h:92
#14 0x0834e890 in zend_execute_scripts (type=8, retval=0x0, file_count=3)
    at /usr/local/src/php-5.2.0/Zend/zend.c:1097
#15 0x08308d72 in php_execute_script (primary_file=0xbff54c20)
    at /usr/local/src/php-5.2.0/main/main.c:1758
#16 0x083b2845 in main (argc=2, argv=0xbff54d04)
    at /usr/local/src/php-5.2.0/sapi/cgi/cgi_main.c:1625
 [2006-11-29 21:11 UTC] tony2001@php.net 
Yep, still we can do nothing about it.
 
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