Custom Query (2297 matches)

nginx is segfaulting in src/core/ngx_string.c:253 when running syntax check (-t). It seems to be related to module stub_status

Here is gdb session :

(gdb) break src/core/ngx_string.c:251 Breakpoint 1 at 0x40b6a8: file src/core/ngx_string.c, line 251. (gdb) run -t Starting program: /usr/sbin/nginx -t [...]

Breakpoint 1, ngx_vslprintf (buf=0x685b1e "", last=0xffffffffffffffff <Address 0xffffffffffffffff out of bounds>,

fmt=0x4633d1 "s, %02d %s %4d %02d:%02d:%02d GMT", args=0x7fffffffe370) at src/core/ngx_string.c:252

[...] (gdb) info args buf = 0x685b1e "" last = 0xffffffffffffffff <Address 0xffffffffffffffff out of bounds> fmt = 0x4633d1 "s, %02d %s %4d %02d:%02d:%02d GMT" args = 0x7fffffffe370

(gdb) continue [... 5 breakpoints at the same point, continue anyway]

Breakpoint 1, ngx_vslprintf (buf=0x7fffffffd64f "", last=0x7fffffffddf0 "(", fmt=0x46b74c "s:%ui", args=0x7fffffffddf0)

at src/core/ngx_string.c:252

252 in src/core/ngx_string.c (gdb) continue Continuing.

Program received signal SIGSEGV, Segmentation fault. ngx_vslprintf (buf=0x7fffffffd64f "", last=0x7fffffffddf0 "(", fmt=0x46b74c "s:%ui", args=0x7fffffffddf0) at src/core/ngx_string.c:253 253 in src/core/ngx_string.c

(gdb) info args buf = 0x7fffffffd64f "" last = 0x7fffffffddf0 "(" fmt = 0x46b74c "s:%ui" args = 0x7fffffffddf0

Nginx config file content

http {

ssl on; server {

listen 80; stub_status on;

}

}

It seems that uwsgi module doesn't pass all params needed to recreate request environment. It lacks information if request is send with https or not. This breaks url link generation ie. in WebOb.

Problem seems to be known and fix is simple (a line more in uwsgi_params; I've checked source of 1.0.8 version and it lacked UWSGI_SCHEME param):

​http://lists.unbit.it/pipermail/uwsgi/2010-August/000561.html

2011/10/21 00:39:14 [crit] 31592#0: *3 SSL_do_handshake() failed (SSL: error:260B9092:engine routines:ENGINE_get_cipher:unimplemented cipher error:0607B086:digital envelope routines:EVP_CipherInit_ex:initialization error error:1408F119:SSL routines:SSL3_GET_RECORD:decryption failed or bad record mac) while SSL handshaking, client: 192.168.0.1, server: www.example.com

This is a validated certificate chain from InCommon, validated with certtool -e and openssl verify. Same files work with Courier-IMAP, Postfix, stunnel and other SSL programs. The worker process exits with signal 10. So far I've not been able to get a coredump.

Full configuration file to reproduce:

error_log /tmp/error.log debug; events { worker_connections 128; } http {

server {

listen 127.0.0.1:9443; ssl on; ssl_certificate /etc/ssl/server.crt; ssl_certificate_key /etc/ssl/private/server.key;

}

}

Thanks in advance.