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Commit 9be3a693 authored by Hansong Zhang's avatar Hansong Zhang
Browse files

HID Host: Check L2CAP packet data length 

Bug: 80493272
Test: manual
Change-Id: I8b1acd11616684729752195fabb4fa34c46a508d
parent 014682c6

system/stack/hid/hidh_conn.cc

+9 −0
Original line number Diff line number Diff line
@@ -42,6 +42,7 @@ 
#include "hidh_api.h"

#include "hidh_int.h"



#include "log/log.h"

#include "osi/include/osi.h"



extern fixed_queue_t* btu_general_alarm_queue;
@@ -799,6 +800,14 @@ static void hidh_l2cif_data_ind(uint16_t l2cap_cid, BT_HDR* p_msg) { 
    return;

  }



  if (p_msg->len < 1) {

    HIDH_TRACE_WARNING("Rcvd L2CAP data, invalid length %d, should be >= 1",

                       p_msg->len);

    osi_free(p_msg);

    android_errorWriteLog(0x534e4554, "80493272");

    return;

  }



  ttype = HID_GET_TRANS_FROM_HDR(*p_data);

  param = HID_GET_PARAM_FROM_HDR(*p_data);

  rep_type = param & HID_PAR_REP_TYPE_MASK;