Bug #77734 [NEW]: Seg Fault caused by php_mysqlnd_free_field_metadata
From: scott at exussum dot co dot uk
Operating system: Ubuntu 18.04
PHP version: 7.3.3
Package: PDO MySQL
Bug Type: Bug
Bug description:Seg Fault caused by php_mysqlnd_free_field_metadata
Description:
------------
Stack trace below. This appears to happen randomly. Its generated by a
long running script running lots of SQL. happens at a differnt point
each time so hard to debug the actual cause.
Backtrace generated below. I can get more info from gdb if needed.
The same script runs fine with php7.2 with no issues.
Actual result:
--------------
Program terminated with signal SIGSEGV, Segmentation fault.
#0 php_mysqlnd_free_field_metadata (meta=0x7f9d7f401018) at
/build/php7.3-u8qUgX/php7.3-7.3.3/ext/mysqlnd/mysqlnd_result_meta.c:38
#1 mysqlnd_mysqlnd_res_meta_free_pub (meta=0x7f9d7f7fb8e0) at
/build/php7.3-u8qUgX/php7.3-7.3.3/ext/mysqlnd/mysqlnd_result_meta.c:106
#2 0x00007f9d8495b5ea in
mysqlnd_mysqlnd_res_free_result_contents_internal_pub
(result=0x7f9d7f7fb048) at
/build/php7.3-u8qUgX/php7.3-7.3.3/ext/mysqlnd/mysqlnd_result.c:300
#3 0x00007f9d8495bfe0 in mysqlnd_mysqlnd_res_free_result_internal_pub
(result=0x7f9d7f7fb048) at
/build/php7.3-u8qUgX/php7.3-7.3.3/ext/mysqlnd/mysqlnd_result.c:316
#4 0x00007f9d8495bcf8 in mysqlnd_mysqlnd_res_free_result_pub
(result=0x7f9d7f7fb048, implicit=<optimized out>)
at
/build/php7.3-u8qUgX/php7.3-7.3.3/ext/mysqlnd/mysqlnd_result.c:1498
#5 0x00007f9d82d86811 in pdo_mysql_stmt_dtor (stmt=0x7f9d7f6c7300) at
/build/php7.3-u8qUgX/php7.3-7.3.3/ext/pdo_mysql/mysql_statement.c:53
#6 0x00007f9d84732f52 in php_pdo_free_statement (stmt=0x7f9d7f6c7300)
at /build/php7.3-u8qUgX/php7.3-7.3.3/ext/pdo/pdo_stmt.c:2333
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Edit bug report at https://bugs.php.net/bug.php?id=77734&edit=1
--
Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=77734&r=trysnapshot54
Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=77734&r=trysnapshot55
Try a snapshot (trunk): https://bugs.php.net/fix.php?id=77734&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=77734&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=77734&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=77734&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=77734&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=77734&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=77734&r=support
Expected behavior: https://bugs.php.net/fix.php?id=77734&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=77734&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=77734&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=77734&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=77734&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=77734&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=77734&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=77734&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=77734&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=77734&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=77734&r=mysqlcfg
Thread (8 messages)
- scott at exussum dot co dot uk