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Fix memory leak in hostapd BSS_TM_REQ error path handling

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The optional url=<URL> parameter was stored in allocated memory and that
memory was leaked if some following parameter parsing attempts failed.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2016-12-27 19:08:31 +02:00
parent def947b771
commit fd5f29e7ed
1 changed files with 9 additions and 4 deletions
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13
hostapd/ctrl_iface.c
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@ -1017,14 +1017,16 @@ static int hostapd_ctrl_iface_bss_tm_req(struct hostapd_data *hapd,
if (ret != 3) {
wpa_printf(MSG_DEBUG,
"MBO requires three arguments: mbo=<reason>:<reassoc_delay>:<cell_pref>");
return -1;
ret = -1;
goto fail;
}
if (mbo_reason > MBO_TRANSITION_REASON_PREMIUM_AP) {
wpa_printf(MSG_DEBUG,
"Invalid MBO transition reason code %u",
mbo_reason);
return -1;
ret = -1;
goto fail;
}
/* Valid values for Cellular preference are: 0, 1, 255 */
@ -1032,7 +1034,8 @@ static int hostapd_ctrl_iface_bss_tm_req(struct hostapd_data *hapd,
wpa_printf(MSG_DEBUG,
"Invalid MBO cellular capability %u",
cell_pref);
return -1;
ret = -1;
goto fail;
}
if (reassoc_delay > 65535 ||
@ -1040,7 +1043,8 @@ static int hostapd_ctrl_iface_bss_tm_req(struct hostapd_data *hapd,
!(req_mode & WNM_BSS_TM_REQ_DISASSOC_IMMINENT))) {
wpa_printf(MSG_DEBUG,
"MBO: Assoc retry delay is only valid in disassoc imminent mode");
return -1;
ret = -1;
goto fail;
}
*mbo_pos++ = MBO_ATTR_ID_TRANSITION_REASON;
@ -1066,6 +1070,7 @@ static int hostapd_ctrl_iface_bss_tm_req(struct hostapd_data *hapd,
nei_pos > nei_rep ? nei_rep : NULL,
nei_pos - nei_rep, mbo_len ? mbo : NULL,
mbo_len);
fail:
os_free(url);
return ret;
}