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Posted to bugs@httpd.apache.org by bu...@apache.org on 2018/12/06 03:59:09 UTC
[Bug 62983] New: apache latest version cause segmentation fault when
enable php5 and php7 in the same time
https://bz.apache.org/bugzilla/show_bug.cgi?id=62983
Bug ID: 62983
Summary: apache latest version cause segmentation fault when
enable php5 and php7 in the same time
Product: Apache httpd-2
Version: 2.4.37
Hardware: All
OS: All
Status: NEW
Severity: trivial
Priority: P2
Component: All
Assignee: bugs@httpd.apache.org
Reporter: dinhbaouit@gmail.com
Target Milestone: ---
Created attachment 36294
--> https://bz.apache.org/bugzilla/attachment.cgi?id=36294&action=edit
poc in apache 2.4.37
all info please download the vagrant box:
https://drive.google.com/file/d/1uQELpsiBaXOAZpXtcHDdciZ_waXHShi8/view?usp=sharing
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[Bug 62983] apache latest version cause segmentation fault when
enable php5 and php7 in the same time
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62983
0xd0ff9 <di...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|INVALID |WONTFIX
--- Comment #4 from 0xd0ff9 <di...@gmail.com> ---
But, If users miss handle do this action, apache2 will crash always and
difficult to fix
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[Bug 62983] apache latest version cause segmentation fault when
enable php5 and php7 in the same time
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62983
Eric Covener <co...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|WONTFIX |INVALID
--- Comment #5 from Eric Covener <co...@gmail.com> ---
These modules aren't even from the ASF.
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[Bug 62983] apache latest version cause segmentation fault when
enable php5 and php7 in the same time
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62983
Joe Orton <jo...@redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEEDINFO |RESOLVED
Resolution|--- |INVALID
--- Comment #3 from Joe Orton <jo...@redhat.com> ---
You'll get symbol conflicts trying to load two PHP .so files into the same
httpd. It's not supported, don't do it. Use php-fpm & fastcgi and you can run
any number of PHPs simultaneously from a single httpd instance.
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[Bug 62983] apache latest version cause segmentation fault when
enable php5 and php7 in the same time
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62983
Eric Covener <co...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |NEEDINFO
--- Comment #1 from Eric Covener <co...@gmail.com> ---
Please share backtraces and loaded libraries from the resulting core, as text
in the bug.
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[Bug 62983] apache latest version cause segmentation fault when
enable php5 and php7 in the same time
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=62983
--- Comment #2 from 0xd0ff9 <di...@gmail.com> ---
(In reply to Eric Covener from comment #1)
> Please share backtraces and loaded libraries from the resulting core, as
> text in the bug.
enmod php7.2 first, then enmod php5
Core dump file:
https://drive.google.com/file/d/1a-POH6PWldsyAZiGMcqfxctfW7H_bA1B/view?usp=sharing
Backtrace:
vagrant@vagrant-ubuntu-trusty-64:~$ sudo apachectl debug
GNU gdb (Ubuntu 7.7.1-0ubuntu5~14.04.3) 7.7.1
Copyright (C) 2014 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from /usr/sbin/apache2...(no debugging symbols found)...done.
warning: File "/home/vagrant/.gdbinit" auto-loading has been declined by your
`auto-load safe-path' set to "$debugdir:$datadir/auto-load".
To enable execution of this file add
add-auto-load-safe-path /home/vagrant/.gdbinit
line to your configuration file "$HOME/.gdbinit".
To completely disable this security protection add
set auto-load safe-path /
line to your configuration file "$HOME/.gdbinit".
For more information about this security protection see the
"Auto-loading safe path" section in the GDB manual. E.g., run from the shell:
info "(gdb)Auto-loading safe path"
(gdb) source /home/vagrant/peda
/home/vagrant/peda: Success.
(gdb) source /home/vagrant/peda/peda.py
gdb-peda$ bt
No stack.
gdb-peda$ run -k start
Starting program: /usr/sbin/apache2 -k start
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
AH00558: apache2: Could not reliably determine the server's fully qualified
domain name, using 10.0.2.15. Set the 'ServerName' directive globally to
suppress this message
Program received signal SIGSEGV, Segmentation fault.
[----------------------------------registers-----------------------------------]
RAX: 0x7ffff3e96a50 (<gc_collect_cycles>: push r15)
RBX: 0x7fffffffd180 --> 0x7ffff1e8debe (push r15)
RCX: 0x5f ('_')
RDX: 0x7ffff2058cc0 (<zend_gc_collect_cycles>: push r15)
RSI: 0x7ffff212b6d7 ("E_ZEND_DTRACE")
RDI: 0x7fffffffee86 ("ERNAME=root")
RBP: 0x1
RSP: 0x7fffffffd120 --> 0x0
RIP: 0x7ffff2030d60 (mov QWORD PTR [rax],rdx)
R8 : 0xffff
R9 : 0x1
R10: 0x7ffff71b6440 (<__strncmp_sse2+4608>: pxor xmm0,xmm0)
R11: 0xc ('\x0c')
R12: 0x7ffff4654260 --> 0x7ffff2132003 ("apache2handler")
R13: 0x7ffff241a280 --> 0x7ffff2132003 ("apache2handler")
R14: 0x7ffff7fba028 --> 0x7ffff7ff2028 --> 0x7ffff7ff4028 --> 0x7ffff7ff8028
--> 0x0
R15: 0x7ffff241a3a0 --> 0x133c7de000000a8
EFLAGS: 0x10246 (carry PARITY adjust ZERO sign trap INTERRUPT direction
overflow)
[-------------------------------------code-------------------------------------]
0x7ffff2030d4b: lea rdx,[rip+0x27f6e] # 0x7ffff2058cc0
<zend_gc_collect_cycles>
0x7ffff2030d52: mov QWORD PTR [rax],0x0
0x7ffff2030d59: mov rax,QWORD PTR [rip+0x3d2f90] #
0x7ffff2403cf0
=> 0x7ffff2030d60: mov QWORD PTR [rax],rdx
0x7ffff2030d63: call 0x7ffff20d6d10
0x7ffff2030d68: mov edi,0x3f
0x7ffff2030d6d: call 0x7ffff1e8c260 <ma...@plt>
0x7ffff2030d72: test rax,rax
[------------------------------------stack-------------------------------------]
0000| 0x7fffffffd120 --> 0x0
0008| 0x7fffffffd128 --> 0x1
0016| 0x7fffffffd130 --> 0x7ffff4654260 --> 0x7ffff2132003 ("apache2handler")
0024| 0x7fffffffd138 --> 0x7ffff1fcf34b (<php_module_startup+379>: lea
rsi,[rip+0x1132a6] # 0x7ffff20e25f8)
0032| 0x7fffffffd140 --> 0x1558092c0
0040| 0x7fffffffd148 --> 0x555555809160 --> 0x5555558097c0 --> 0x7ffff72aee73
("gethostbyaddr_r")
0048| 0x7fffffffd150 --> 0x2d746e610000007c ('|')
0056| 0x7fffffffd158 ("ubuntu-trusty-64")
[------------------------------------------------------------------------------]
Legend: code, data, rodata, value
Stopped reason: SIGSEGV
0x00007ffff2030d60 in ?? () from /usr/lib/apache2/modules/libphp7.2.so
gdb-peda$ bt
#0 0x00007ffff2030d60 in ?? () from /usr/lib/apache2/modules/libphp7.2.so
#1 0x00007ffff1fcf34b in php_module_startup () from
/usr/lib/apache2/modules/libphp7.2.so
#2 0x00007ffff20d81e5 in ?? () from /usr/lib/apache2/modules/libphp7.2.so
#3 0x00007ffff20d8dd5 in ?? () from /usr/lib/apache2/modules/libphp7.2.so
#4 0x00005555555ad259 in ap_run_post_config ()
#5 0x000055555558b398 in main ()
#6 0x00007ffff714df45 in __libc_start_main (main=0x55555558aaf0 <main>,
argc=0x3,
argv=0x7fffffffe688, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>,
stack_end=0x7fffffffe678) at libc-start.c:287
#7 0x000055555558b6af in _start ()
gdb-peda$
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