Edit report at https://bugs.php.net/bug.php?id=64177&edit=1
ID: 64177 Updated by: a...@php.net Reported by: a...@php.net Summary: curl_multi_* crash with libcurl 7.29.0 -Status: Assigned +Status: Closed Type: Bug Package: cURL related Operating System: any PHP Version: Irrelevant Assigned To: ab Block user comment: N Private report: N New Comment: That commit fixes this issue, obviously there can be no plausible workaround in php. I think curl 7.29.0 should be banned for regular PHP builds. I'll be using that patch to build with 7.29.0 for now (as no newer curl version is yet out). Previous Comments: ------------------------------------------------------------------------ [2013-02-15 09:32:46] paj...@php.net This commit may fix this regression: https://github.com/bagder/curl/commit/da3fc1ee91de656a30f3a12de394bcba55119872 @a please patch our libcurl and test again :) ------------------------------------------------------------------------ [2013-02-08 23:31:40] a...@php.net Description: ------------ Perhaps that's a libcurl bug, but the curl extension multi functionality consistently fails with 7.29.0 . For instance this snippet based on ext/curl/tests/curl_multi_init_basic.phpt $mh = curl_multi_init(); curl_multi_close($mh); Basically it does crash always if no handles were added between init and cleanup. Ther corresponding snippet in c #include <curl/curl.h> int main(void) { CURLM *multi_handle; multi_handle = curl_multi_init(); curl_multi_cleanup(multi_handle); return 0; } That snippets do successfully work with the libcurl versions prior to 7.29.0 . The issue introduces itself starting with this commit in libcurl included in 7.29.0 https://github.com/bagder/curl/commit/c43127414d89ccb9ef6517081f68986d991bcfb3#L10R1776 And the commit is related to a big change explaned here http://daniel.haxx.se/blog/2013/01/17/internally-were-all-multi-now/ The issue is consistently reproduceable on linux and windows through all PHP versions. Expected result: ---------------- no crash Actual result: -------------- #0 _php_curl_multi_close (rsrc=0xb707259c) at /home/weltling/dws/src/php-5.5-nts/ext/curl/multi.c:349 #1 0x085902ff in list_entry_destructor (ptr=0xb707259c) at /home/weltling/dws/src/php-5.5-nts/Zend/zend_list.c:183 #2 0x0858d72e in zend_hash_del_key_or_index (ht=0x8aa7158, arKey=0x0, nKeyLength=0, h=4, flag=1) at /home/weltling/dws/src/php-5.5-nts/Zend/zend_hash.c:531 #3 0x0858ffed in _zend_list_delete (id=4) at /home/weltling/dws/src/php-5.5-nts/Zend/zend_list.c:57 #4 0x081d1d8b in zif_curl_multi_close (ht=1, return_value=0xb7070b3c, return_value_ptr=0x0, this_ptr=0x0, return_value_used=0) at /home/weltling/dws/src/php-5.5-nts/ext/curl/multi.c:330 #5 0x085b7f4b in zend_do_fcall_common_helper_SPEC (execute_data=0xb70540c4) at /home/weltling/dws/src/php-5.5-nts/Zend/zend_vm_execute.h:542 #6 0x085bdc7b in ZEND_DO_FCALL_SPEC_CONST_HANDLER (execute_data=0xb70540c4) at /home/weltling/dws/src/php-5.5-nts/Zend/zend_vm_execute.h:2293 #7 0x085b695c in execute_ex (execute_data=0xb70540c4) at /home/weltling/dws/src/php-5.5-nts/Zend/zend_vm_execute.h:356 #8 0x085b7023 in zend_execute (op_array=0xb70713a8) at /home/weltling/dws/src/php-5.5-nts/Zend/zend_vm_execute.h:381 #9 0x0857ed2d in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /home/weltling/dws/src/php-5.5-nts/Zend/zend.c:1316 #10 0x085023ec in php_execute_script (primary_file=0xbfffdff0) at /home/weltling/dws/src/php-5.5-nts/main/main.c:2479 #11 0x086a7d59 in do_cli (argc=2, argv=0xbffff284) at /home/weltling/dws/src/php-5.5-nts/sapi/cli/php_cli.c:988 #12 0x086a8ec3 in main (argc=2, argv=0xbffff284) at /home/weltling/dws/src/php-5.5-nts/sapi/cli/php_cli.c:1364 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=64177&edit=1
