Bug #75671 [NEW]: pg_version() crashes when called on a connection to cockroach

From: magicaltux at gmail dot com Operating system: Linux Ubuntu 16 LTS PHP version: 7.2.0 Package: PostgreSQL related Bug Type: Bug Bug description:pg_version() crashes when called on a connection to cockroach Description: ------------ Cockroach server offers a pgsql compatible wire protocol, and supports a large subset of pgsql: https://www.cockroachlabs.com/docs/stable/sql-feature-support.html Calling pg_version() on a cockroach pgsql connection will however result in a segfault. Even if the server doesn't support part of the protocol, php shouldn't segfault because of that. Test script: --------------- $pg = pg_connect("..."); var_dump(pg_version($pg)); Expected result: ---------------- (pg_version() output) Actual result: -------------- Program received signal SIGSEGV, Segmentation fault. strlen () at ../sysdeps/x86_64/strlen.S:106 106 ../sysdeps/x86_64/strlen.S: No such file or directory. (gdb) bt #0 strlen () at ../sysdeps/x86_64/strlen.S:106 #1 0x00000000008f69c2 in add_assoc_string_ex (arg=arg@entry=0x7fffed21d0a0, key=key@entry=0x107dbef "server_encoding", key_len=key_len@entry=15, str=0x0) at /usr/src/php-web-7.2.0/Zend/zend_API.c:1414 #2 0x00000000006fa2a8 in php_pgsql_get_link_info (return_value=0x7fffed21d0a0, entry_type=<optimized out>, execute_data=<optimized out>) at /usr/src/php-web-7.2.0/ext/pgsql/pgsql.c:1649 #3 0x000000000099f426 in ZEND_DO_ICALL_SPEC_RETVAL_USED_HANDLER () at /usr/src/php-web-7.2.0/Zend/zend_vm_execute.h:617 #4 execute_ex (ex=0x0) at /usr/src/php-web-7.2.0/Zend/zend_vm_execute.h:59737 #5 0x00000000009a4f1e in zend_execute (op_array=0x7fffed27c2a0, op_array@entry=0x7fffdfedb320, return_value=0x0, return_value@entry=0x7fffed21d030) at /usr/src/php-web-7.2.0/Zend/zend_vm_execute.h:63763 #6 0x00000000008f3a13 in zend_execute_scripts (type=type@entry=8, retval=0x7fffed21d030, retval@entry=0x0, file_count=file_count@entry=3) at /usr/src/php-web-7.2.0/Zend/zend.c:1496 #7 0x000000000088f040 in php_execute_script (primary_file=primary_file@entry=0x7fffffffd240) at /usr/src/php-web-7.2.0/main/main.c:2592 #8 0x00000000009a72e9 in do_cli (argc=2, argv=0x14c9060) at /usr/src/php-web-7.2.0/sapi/cli/php_cli.c:1011 #9 0x000000000044ea5c in main (argc=2, argv=0x14c9060) at /usr/src/php-web-7.2.0/sapi/cli/php_cli.c:1404 -- Edit bug report at https://bugs.php.net/bug.php?id=75671&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=75671&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=75671&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=75671&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=75671&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=75671&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=75671&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=75671&r=needscript Try newer version: https://bugs.php.net/fix.php?id=75671&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=75671&r=support Expected behavior: https://bugs.php.net/fix.php?id=75671&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=75671&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=75671&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=75671&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=75671&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=75671&r=dst IIS Stability: https://bugs.php.net/fix.php?id=75671&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=75671&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=75671&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=75671&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=75671&r=mysqlcfg