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wifi: fix a crash while attempting to connect hidden AP (bgo #757814)

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Triggered with
$ nmcli dev wifi connect 00:22:6B:EB:1D:CA hidden yes

where 00:22:6B:EB:1D:CA was BSSID of the AP with hidden SSID.

 Program received signal SIGSEGV, Segmentation fault.
 nm_ap_utils_complete_connection (ap_ssid=0x0, bssid=0xc9e6b0 "00:22:6B:EB:1D:CA", ap_mode=NM_802_11_MODE_INFRA, ap_flags=1, ap_wpa_flags=0, ap_rsn_flags=0,
     connection=0x994ae0, lock_bssid=0, error=0x7fffffffdba0) at nm-wifi-ap-utils.c:551
 551		ap_ssid_bytes = g_bytes_new (ap_ssid->data, ap_ssid->len);
 (gdb) bt
 #0  0x00007fffe2ea18ef in nm_ap_utils_complete_connection (ap_ssid=0x0, bssid=0xc9e6b0 "00:22:6B:EB:1D:CA", ap_mode=NM_802_11_MODE_INFRA, ap_flags=1, ap_wpa_flags=0, ap_rsn_flags=0, connection=0x994ae0, lock_bssid=0, error=0x7fffffffdba0) at nm-wifi-ap-utils.c:551
 #1  0x00007fffe2ea178f in nm_ap_complete_connection (self=self@entry=0x8add20 [NMAccessPoint], connection=connection@entry=0x994ae0, lock_bssid=0, error=error@entry=0x7fffffffdba0) at nm-wifi-ap.c:854
 #2  0x00007fffe2e9e22c in complete_connection (device=0x8c39f0 [NMDeviceWifi], connection=0x994ae0, specific_object=<optimized out>, existing_connections=0xb2ef10 = {...}, error=0x7fffffffdba0) at nm-device-wifi.c:839
 #3  0x000000000045f7a1 in nm_device_complete_connection (self=<optimized out>, connection=connection@entry=0x994ae0, specific_object=specific_object@entry=0xc31850 "/org/freedesktop/NetworkManager/AccessPoint/11", existing_connections=existing_connections@entry=0xb2ef10 = {...}, error=error@entry=0x7fffffffdba0)
    at devices/nm-device.c:2603
 #4  0x00000000004e0a66 in impl_manager_add_and_activate_connection (self=0x8b81f0 [NMManager], context=0x7fffe804bde0 [GDBusMethodInvocation], settings=<optimized out>, device_path=<optimized out>, specific_object_path=0xc31850 "/org/freedesktop/NetworkManager/AccessPoint/11") at nm-manager.c:3426
 #5  0x0000003bf6c05db0 in ffi_call_unix64 () at ../src/x86/unix64.S:76
 #6  0x0000003bf6c05818 in ffi_call (cif=cif@entry=0x7fffffffde10, fn=<optimized out>, rvalue=0x7fffffffdd70, avalue=avalue@entry=0x7fffffffdcf0)
    at ../src/x86/ffi64.c:525
 #7  0x0000003bf7010464 in g_cclosure_marshal_generic (closure=closure@entry=0x8d4ae0, return_gvalue=return_gvalue@entry=0x0, n_param_values=n_param_values@entry=5, param_values=param_values@entry=0xb508f0, invocation_hint=invocation_hint@entry=0x7fffffffe020, marshal_data=0x4e0890 <impl_manager_add_and_activate_connection>)
    at gclosure.c:1448
 #8  0x00000000004c6038 in nm_exported_object_meta_marshal (closure=0x8d4ae0, return_value=0x7fffffffdfd0, n_param_values=5, param_values=0xc2a240, invocation_hint=0x7fffffffe020, marshal_data=<optimized out>) at nm-exported-object.c:346

https://bugzilla.gnome.org/show_bug.cgi?id=757814
This commit is contained in:
Jiří Klimeš 2015-11-09 14:04:26 +01:00
parent af10948e87
commit 98b0b4b402
1 changed files with 2 additions and 2 deletions
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4
src/devices/wifi/nm-wifi-ap-utils.c
View file

@ -548,11 +548,11 @@ nm_ap_utils_complete_connection (const GByteArray *ap_ssid,
s_8021x = nm_connection_get_setting_802_1x (connection);
/* Fill in missing SSID */
ap_ssid_bytes = g_bytes_new (ap_ssid->data, ap_ssid->len);
ap_ssid_bytes = ap_ssid ? g_bytes_new (ap_ssid->data, ap_ssid->len) : NULL;
ssid = nm_setting_wireless_get_ssid (s_wifi);
if (!ssid)
g_object_set (G_OBJECT (s_wifi), NM_SETTING_WIRELESS_SSID, ap_ssid_bytes, NULL);
else if (!g_bytes_equal (ssid, ap_ssid_bytes)) {
else if (!ap_ssid_bytes || !g_bytes_equal (ssid, ap_ssid_bytes)) {
g_set_error_literal (error,
NM_CONNECTION_ERROR,
NM_CONNECTION_ERROR_INVALID_PROPERTY,