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Fix segfault in case of an invalid configuration

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The RO variable is being assigned before the SSID is NULL checked, so,
any invalid configuration leads to a segmentation fault.

Fixes: d8d2b3a338 ("Implement read-only mode for SSIDs from the additional config (-I)")
Signed-off-by: Chaitanya Tata <chaitanya.tk17@gmail.com>
This commit is contained in:
Krishna 2023-01-16 01:28:54 +05:30 committed by Jouni Malinen
parent 825a545279
commit d31c2b43aa
1 changed files with 1 additions and 1 deletions
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2
wpa_supplicant/config_file.c
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@ -339,13 +339,13 @@ struct wpa_config * wpa_config_read(const char *name, struct wpa_config *cfgp,
while (wpa_config_get_line(buf, sizeof(buf), f, &line, &pos)) { while (wpa_config_get_line(buf, sizeof(buf), f, &line, &pos)) {
if (os_strcmp(pos, "network={") == 0) { if (os_strcmp(pos, "network={") == 0) {
ssid = wpa_config_read_network(f, &line, id++); ssid = wpa_config_read_network(f, &line, id++);
ssid->ro = ro;
if (ssid == NULL) { if (ssid == NULL) {
wpa_printf(MSG_ERROR, "Line %d: failed to " wpa_printf(MSG_ERROR, "Line %d: failed to "
"parse network block.", line); "parse network block.", line);
errors++; errors++;
continue; continue;
} }
ssid->ro = ro;
if (head == NULL) { if (head == NULL) {
head = tail = ssid; head = tail = ssid;
} else { } else {