isdn: off by one in connect_res()
The bug here is that we use "Reject" as the index into the cau_t[] array in the else path. Since the cau_t[] has 9 elements if Reject == 9 then we are reading beyond the end of the array. My understanding of the code is that it's saying that if Reject is 1 or too high then that's invalid and we should hang up. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1474,7 +1474,7 @@ static byte connect_res(dword Id, word Number, DIVA_CAPI_ADAPTER *a,
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add_ai(plci, &parms[5]);
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sig_req(plci, REJECT, 0);
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}
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else if (Reject == 1 || Reject > 9)
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else if (Reject == 1 || Reject >= 9)
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{
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add_ai(plci, &parms[5]);
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sig_req(plci, HANGUP, 0);
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