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Add bounds check in writeSerial to prevent buffer overflow

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Ember 2026-04-05 17:59:42 -07:00
parent a2309124c7
commit 2ce56123e7
1 changed files with 3 additions and 0 deletions
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3
MMDVMHost.cpp
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@ -3108,6 +3108,9 @@ void CMMDVMHost::writeSerial(const unsigned char* message, unsigned int length)
assert(m_modem != nullptr);
assert(message != nullptr);
if (length > 5000U)
return;
if (length <= 252U) {
// Simple case of a short message, send it immediately to the modem
m_modem->writeSerialData(message, length);