pos++;
if (pos >= end)
return -1;
- if ((pos + pos[0]) < end)
+ if (pos[0] < end - pos)
end = pos + 1 + pos[0];
pos++;
wpa_hexdump(MSG_DEBUG, "SCARD: file header FSP template",
end = buf + len;
/* RES */
- if (pos[0] > RES_MAX_LEN || pos + pos[0] > end) {
+ if (pos[0] > RES_MAX_LEN || pos[0] > end - pos) {
wpa_printf(MSG_DEBUG, "SCARD: Invalid RES");
return -1;
}
wpa_hexdump(MSG_DEBUG, "SCARD: RES", res, *res_len);
/* CK */
- if (pos[0] != CK_LEN || pos + CK_LEN > end) {
+ if (pos[0] != CK_LEN || CK_LEN > end - pos) {
wpa_printf(MSG_DEBUG, "SCARD: Invalid CK");
return -1;
}
wpa_hexdump(MSG_DEBUG, "SCARD: CK", ck, CK_LEN);
/* IK */
- if (pos[0] != IK_LEN || pos + IK_LEN > end) {
+ if (pos[0] != IK_LEN || IK_LEN > end - pos) {
wpa_printf(MSG_DEBUG, "SCARD: Invalid IK");
return -1;
}