https://issues.apache.org/bugzilla/show_bug.cgi?id=50978
Summary: Segfault on method=POST request
Product: Apache httpd-2
Version: 2.2.17
Platform: PC
OS/Version: Linux
Status: NEW
Severity: major
Priority: P2
Component: All
AssignedTo: [email protected]
ReportedBy: [email protected]
Using fresh install of Opensuse 11.4, kernel 2.6.38, httpd 2.2.17.
Compile of httpd with --enable-so for use with PHP appears to work correctly.
With the following HTML code
<html>
<p>crash test</p>
<p>
<form action='phpcrashtest.html' method='POST'>
<input type='submit' name='button' value='submit' />
</form>
</p>
<p>ended</p>
</html>
The page initially loads correctly, but clicking the submit button with
method=POST causes segmentation fault in httpd. method=GET works correctly.
Using httpd -X to restrict to one process and tracking with gdb:
(gdb) backtrace
#0 0xffffe424 in __kernel_vsyscall ()
#1 0xb75d7a08 in accept4 () from /lib/libc.so.6
#2 0xb76ea411 in apr_socket_accept (new=0xbfb123cc, sock=0x80d3758,
connection_context=0x83655a8) at network_io/unix/sockets.c:210
#3 0x080ad9cc in unixd_accept (accepted=0xbfb1242c, lr=0x80d3738,
ptrans=0x83655a8) at unixd.c:506
#4 0x080ab920 in child_main (child_num_arg=<value optimized out>)
at prefork.c:643
#5 0x080abc9f in make_child (s=0x80d9ce0, slot=0) at prefork.c:707
#6 0x080ac4fc in ap_mpm_run (_pconf=0x80d50a8, plog=0x81131a0, s=0x80d9ce0)
at prefork.c:983
#7 0x080693fc in main (argc=2, argv=0xbfb12774) at main.c:739
I have reinstalled OS, kernel and httpd several times, result is consistent.
Opensuse 11.3 installation was not a problem, Apache httpd worked correctly. I
have opened the issue on Opensuse forums but no feedback.
I have marked this a major issue since when working with method=POST in PHP,
the segfault can result in Apache trying to serve up PHP code in plain text
format. Suggestions appreciated to get more information.
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