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Mitigate VMMethod::validatedId() crash #453

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Merged
zhengyu123 merged 1 commit into from
Apr 8, 2026
+2 −1
Merged

Mitigate VMMethod::validatedId() crash #453

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3 changes: 2 additions & 1 deletion ddprof-lib/src/main/cpp/hotspot/vmStructs.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -733,7 +733,8 @@ jmethodID VMMethod::id() {

jmethodID VMMethod::validatedId() {
jmethodID method_id = id();
if (!_can_dereference_jmethod_id || (goodPtr(method_id) && *(VMMethod**)method_id == this)) {
if (!_can_dereference_jmethod_id ||
((goodPtr(method_id) && SafeAccess::loadPtr((void**)method_id, nullptr) == this))) {
return method_id;
}
return NULL;
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