don't throw std::bad_alloc when out of memory. Instead, terminate immediately

src/init.cpp

@@ -723,6 +723,19 @@ bool AppInitServers(boost::thread_group& threadGroup)
     return true;
 }
 
+[[noreturn]] static void new_handler_terminate()
+{
+    // Rather than throwing std::bad-alloc if allocation fails, terminate
+    // immediately to (try to) avoid chain corruption.
+    // Since LogPrintf may itself allocate memory, set the handler directly
+    // to terminate first.
+    std::set_new_handler(std::terminate);
+    LogPrintf("Error: Out of memory. Terminating.\n");
+
+    // The log was successful, terminate now.
+    std::terminate();
+};
+
 /** Initialize bitcoin.
  *  @pre Parameters should be parsed and config file should be read.
  */
@@ -784,6 +797,8 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler)
     signal(SIGPIPE, SIG_IGN);
 #endif
 
+    std::set_new_handler(new_handler_terminate);
+
     // ********************************************************* Step 2: parameter interactions
     const CChainParams& chainparams = Params();