Bug #81539 [NEW]: Segmentation fault in pdo_mysql
From: mira at mirawaneko dot net
Operating system: Debian 10 (Buster)
PHP version: 8.0.11
Package: PDO MySQL
Bug Type: Bug
Bug description:Segmentation fault in pdo_mysql
Description:
------------
PHP installed via Sury
Version 8.0.11
I haven't been able to pinpoint the cause of the issue, therefore no
test script, I am simply posting it here in hopes that the cause may be
found.
It happened continuously randomly on requests.
This only happens on my live server and haven't been able to replicate
it locally so I only have debug symbols on pdo_mysql.
I have downgraded the website to run on PHP 7.4.24 a few days ago and
haven't been able to replicate the issue since.
------------------------------------------------------------
dmesg:
php-fpm8.0[29878]: segfault at 4 ip 00007f3c42776ee3 sp 00007fff18c9fd70
error 4 in pdo_mysql.so[7f3c42774000+4000]
------------------------------------------------------------
gdb:
Program terminated with signal SIGSEGV, Segmentation fault.
#0 zend_string_copy (s=0x0) at ./Zend/zend_types.h:628
628 ./Zend/zend_types.h: No such file or directory.
(gdb) bt
#0 zend_string_copy (s=0x0) at ./Zend/zend_types.h:628
#1 pdo_mysql_stmt_describe (stmt=0x7f3c45a69980, colno=<optimized out>)
at ./ext/pdo_mysql/mysql_statement.c:637
#2 0x00007f3c45c1d5c5 in pdo_stmt_describe_columns
(stmt=stmt@entry=0x7f3c45a69980) at ./ext/pdo/pdo_stmt.c:135
#3 0x00007f3c45c1da96 in zim_PDOStatement_execute
(execute_data=<optimized out>, return_value=0x7fff18c9fee0) at
./ext/pdo/pdo_stmt.c:473
#4 0x000055da99d14a44 in ZEND_DO_FCALL_SPEC_RETVAL_UNUSED_HANDLER () at
./Zend/zend_vm_execute.h:1755
#5 execute_ex (ex=0x7f3c45a69980) at ./Zend/zend_vm_execute.h:54180
#6 0x000055da99d1646c in zend_execute (op_array=0x7f3c45a6e000,
return_value=0x0) at ./Zend/zend_vm_execute.h:58499
#7 0x000055da99cad44d in zend_execute_scripts (type=1168200976,
type@entry=8, retval=retval@entry=0x0, file_count=file_count@entry=3) at
./Zend/zend.c:1680
#8 0x000055da99c4a15b in php_execute_script (primary_file=<optimized
out>) at ./main/main.c:2524
#9 0x000055da99b02fa9 in main (argc=<optimized out>, argv=<optimized
out>) at ./sapi/fpm/fpm/fpm_main.c:1914
--
Edit bug report at https://bugs.php.net/bug.php?id=81539&edit=1
--
Fix committed: https://bugs.php.net/fix.php?id=81539&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=81539&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=81539&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=81539&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=81539&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=81539&r=support
Expected behavior: https://bugs.php.net/fix.php?id=81539&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=81539&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=81539&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=81539&r=globals
PHP version support discontinued: https://bugs.php.net/fix.php?id=81539&r=phptooold
Daylight Savings: https://bugs.php.net/fix.php?id=81539&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=81539&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=81539&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=81539&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=81539&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=81539&r=mysqlcfg
Thread (6 messages)
- mira at mirawaneko dot net