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Fix the vulnerability of mbed-os #15462 issue #374

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Merged
merged 1 commit into from
Oct 17, 2024
Merged

Fix the vulnerability of mbed-os #15462 issue #374

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13 changes: 11 additions & 2 deletions connectivity/FEATURE_BLE/source/cordio/stack_adaptation/hci_tr.c
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Original file line number Diff line number Diff line change
Expand Up @@ -170,9 +170,18 @@ void hciTrSerialRxIncoming(uint8_t *pBuf, uint8_t len)
hdrLen = HCI_EVT_HDR_LEN;
break;
default:
/* invalid packet type */
/**
* invalid packet type
*
* fix: Simply employing WSF_ASSERT in the event of
* an "invalid packet type" is not reasonable.
* Instead, it is advisable to discard this data packet,
* exit the packet processing function,
* and adjust the stateRx back to HCI_RX_STATE_IDLE.
*/
stateRx = HCI_RX_STATE_IDLE;
WSF_ASSERT(0);
break;
return;
}

/* see if entire header has been read */
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