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Reject ap_vendor_elements if its length is odd

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Align the process logic for ap_vendor_elements and ap_assocresp_elements
parsing by using the wpabuf_parse_bin() helper function in both.

Signed-off-by: Chaoli Zhou <zchaoli@codeaurora.org>
This commit is contained in:
Chaoli Zhou 2021-11-19 22:13:29 +08:00 committed by Jouni Malinen
parent 2c2bfebca4
commit 14ab4a816c
1 changed files with 7 additions and 19 deletions
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26
wpa_supplicant/config.c
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@ -4911,33 +4911,21 @@ static int wpa_config_process_ap_vendor_elements(
struct wpa_config *config, int line, const char *pos)
{
struct wpabuf *tmp;
int len = os_strlen(pos) / 2;
u8 *p;
if (!len) {
if (!*pos) {
wpabuf_free(config->ap_vendor_elements);
config->ap_vendor_elements = NULL;
return 0;
}
tmp = wpabuf_alloc(len);
if (tmp) {
p = wpabuf_put(tmp, len);
if (hexstr2bin(pos, p, len)) {
wpa_printf(MSG_ERROR, "Line %d: invalid "
"ap_vendor_elements", line);
wpabuf_free(tmp);
return -1;
}
wpabuf_free(config->ap_vendor_elements);
config->ap_vendor_elements = tmp;
} else {
wpa_printf(MSG_ERROR, "Cannot allocate memory for "
"ap_vendor_elements");
tmp = wpabuf_parse_bin(pos);
if (!tmp) {
wpa_printf(MSG_ERROR, "Line %d: invalid ap_vendor_elements",
line);
return -1;
}
wpabuf_free(config->ap_vendor_elements);
config->ap_vendor_elements = tmp;
return 0;
}