signal 17 (SIGCHLD) received when used "secure authentication" in Thunderbird

Wed Jul 11 10:11:35 MSD 2007

11.07.07, 09:52, Igor Sysoev <is at rambler-co.ru>:

> On Wed, Jul 11, 2007 at 08:13:49AM +0400, umask wrote:

> > Program received signal SIGSEGV, Segmentation fault.

> > 

> > ngx_encode_base64 (dst=0xbf99a034, src=0x99e9304) at src/core/ngx_string.c:745

> > 

> > 745             *d++ = basis64[(s[0] >> 2) & 0x3f];

> > 

> > (gdb) bt

> > 

> > #0  ngx_encode_base64 (dst=0xbf99a034, src=0x99e9304)

> > 

> >     at src/core/ngx_string.c:745

> > 

> > #1  0x080957a5 in ngx_pop3_auth_state (rev=0x99eaaf4)

> > 

> >     at src/mail/ngx_mail_handler.c:730

> fr 1

> p text

> p salt

> p s->salt

gdb -p 11110

GNU gdb Red Hat Linux (6.5-16.el5rh)

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This GDB was configured as "i386-redhat-linux-gnu".

Attaching to process 11110

Reading symbols from /opt/nginx/sbin/nginx...done.

Using host libthread_db library "/lib/libthread_db.so.1".

Reading symbols from /lib/libcrypt.so.1...done.

Loaded symbols for /lib/libcrypt.so.1

Reading symbols from /lib/libpcre.so.0...done.

Loaded symbols for /lib/libpcre.so.0

Reading symbols from /lib/libssl.so.6...done.

Loaded symbols for /lib/libssl.so.6

Reading symbols from /lib/libcrypto.so.6...done.

Loaded symbols for /lib/libcrypto.so.6

Reading symbols from /usr/lib/libz.so.1...done.

Loaded symbols for /usr/lib/libz.so.1

Reading symbols from /lib/libc.so.6...done.

Loaded symbols for /lib/libc.so.6

Reading symbols from /usr/lib/libgssapi_krb5.so.2...done.

Loaded symbols for /usr/lib/libgssapi_krb5.so.2

Reading symbols from /usr/lib/libkrb5.so.3...done.

Loaded symbols for /usr/lib/libkrb5.so.3

Reading symbols from /lib/libcom_err.so.2...done.

Loaded symbols for /lib/libcom_err.so.2

Reading symbols from /usr/lib/libk5crypto.so.3...done.

Loaded symbols for /usr/lib/libk5crypto.so.3

Reading symbols from /lib/libresolv.so.2...done.

Loaded symbols for /lib/libresolv.so.2

Reading symbols from /lib/libdl.so.2...done.

Loaded symbols for /lib/libdl.so.2

Reading symbols from /lib/ld-linux.so.2...done.

Loaded symbols for /lib/ld-linux.so.2

Reading symbols from /usr/lib/libkrb5support.so.0...done.

Loaded symbols for /usr/lib/libkrb5support.so.0

Reading symbols from /lib/libnss_files.so.2...done.

Loaded symbols for /lib/libnss_files.so.2

0x00568402 in __kernel_vsyscall ()

(gdb) c

Continuing.

Program received signal SIGSEGV, Segmentation fault.

ngx_encode_base64 (dst=0xbf8226c4, src=0x8b936ec) at src/core/ngx_string.c:745

745             *d++ = basis64[(s[0] >> 2) & 0x3f];

(gdb) bt

#0  ngx_encode_base64 (dst=0xbf8226c4, src=0x8b936ec)

    at src/core/ngx_string.c:745

#1  0x080957a5 in ngx_pop3_auth_state (rev=0x8b93b1c)

    at src/mail/ngx_mail_handler.c:730

#2  0x08062406 in ngx_epoll_process_events (cycle=0x8b81930, timer=59998, 

    flags=<value optimized out>) at src/event/modules/ngx_epoll_module.c:518

#3  0x080594fa in ngx_process_events_and_timers (cycle=0x8b81930)

    at src/event/ngx_event.c:245

#4  0x0805fbdd in ngx_worker_process_cycle (cycle=0x8b81930, data=0x0)

    at src/os/unix/ngx_process_cycle.c:747

#5  0x0805e601 in ngx_spawn_process (cycle=0x8b81930, 

    proc=0x805f54d <ngx_worker_process_cycle>, data=0x0, 

    name=0x809e857 "worker process", respawn=-2)

    at src/os/unix/ngx_process.c:187

#6  0x0805f0e6 in ngx_start_worker_processes (cycle=0x8b81930, n=1, type=-2)

    at src/os/unix/ngx_process_cycle.c:327

#7  0x0806014b in ngx_master_process_cycle (cycle=0x8b81930)

    at src/os/unix/ngx_process_cycle.c:119

#8  0x0804c07f in main (argc=1, argv=0xbf822b64) at src/core/nginx.c:353

(gdb) fr 1

#1  0x080957a5 in ngx_pop3_auth_state (rev=0x8b93b1c)

    at src/mail/ngx_mail_handler.c:730

730                         ngx_encode_base64(&salt, &s->salt);

(gdb) p text

$1 = (u_char *) 0x8b9236c "+ %/1─▄koi8-r║арДВ\v 6MeJd\177\233%/1─┼koi8-r╦жУ\025&8K_t\212%/1─▀koi8-r║╧рЛ\a#I"

(gdb) p salt

$2 = {len = 14400, 

  data = 0x8b9236e "%/1─▄koi8-r║арДВ\v 6MeJd\177\233%/1─┼koi8-r╦жУ\025&8K_t\212%/1─▀koi8-r║╧рЛ\a#I"}

(gdb) p s->salt

$3 = {len = 4294967294, data = 0x0}

(gdb) 

Тот же результат вывода в аттаче.
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