Fix fuzzer found null-deref in memory_quota (grpc#27648)

eregon · Oct 8, 2021 · 3dc5528 · 3dc5528
1 parent 8d8d071
commit 3dc5528
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diff --git a/src/core/lib/resource_quota/memory_quota.cc b/src/core/lib/resource_quota/memory_quota.cc
@@ -376,7 +376,7 @@ void BasicMemoryQuota::Take(size_t amount) {
   auto prior = free_bytes_.fetch_sub(amount, std::memory_order_acq_rel);
   // If we push into overcommit, awake the reclaimer.
   if (prior >= 0 && prior < static_cast<intptr_t>(amount)) {
-    reclaimer_activity_->ForceWakeup();
+    if (reclaimer_activity_ != nullptr) reclaimer_activity_->ForceWakeup();
   }
 }