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RtlJaguarDevice: validate radiotap header length and read it_len as le16 #38

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Merged
josephnef merged 1 commit into from
May 23, 2026
Merged

RtlJaguarDevice: validate radiotap header length and read it_len as le16 #38

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7 changes: 5 additions & 2 deletions src/RtlJaguarDevice.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -28,8 +28,11 @@ bool RtlJaguarDevice::send_packet(const uint8_t *packet, size_t length) {
u8 fixed_rate = MGN_1M, sgi = 0, bwidth = 0, ldpc = 0, stbc = 0;
u16 txflags = 0;
int rate_id = 0;
radiotap_length = int(packet[2]);
if (radiotap_length <= 0 || (size_t)radiotap_length >= length) {
if (length < sizeof(struct ieee80211_radiotap_header)) {
return false;
}
radiotap_length = get_unaligned_le16(packet + 2);
if (radiotap_length == 0 || (size_t)radiotap_length >= length) {
return false;
}
real_packet_length = length - radiotap_length;
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