Merge remote-tracking branch 'upstream/master' into feature/savestates-2

src/core/hle/kernel/vm_manager.cpp

@@ -152,13 +152,16 @@ ResultCode VMManager::ChangeMemoryState(VAddr target, u32 size, MemoryState expe
     }
 
     CASCADE_RESULT(auto vma, CarveVMARange(target, size));
-    ASSERT(vma->second.size == size);
 
-    vma->second.permissions = new_perms;
-    vma->second.meminfo_state = new_state;
-    UpdatePageTableForVMA(vma->second);
-
-    MergeAdjacent(vma);
+    const VMAIter end = vma_map.end();
+    // The comparison against the end of the range must be done using addresses since VMAs can be
+    // merged during this process, causing invalidation of the iterators.
+    while (vma != end && vma->second.base < target_end) {
+        vma->second.permissions = new_perms;
+        vma->second.meminfo_state = new_state;
+        UpdatePageTableForVMA(vma->second);
+        vma = std::next(MergeAdjacent(vma));
+    }
 
     return RESULT_SUCCESS;
 }

src/core/hle/service/ldr_ro/ldr_ro.cpp

@@ -46,10 +46,17 @@ static const ResultCode ERROR_NOT_LOADED = // 0xD8A12C0D
 
 static bool VerifyBufferState(Kernel::Process& process, VAddr buffer_ptr, u32 size) {
     auto vma = process.vm_manager.FindVMA(buffer_ptr);
-    return vma != process.vm_manager.vma_map.end() &&
-           vma->second.base + vma->second.size >= buffer_ptr + size &&
-           vma->second.permissions == Kernel::VMAPermission::ReadWrite &&
-           vma->second.meminfo_state == Kernel::MemoryState::Private;
+    while (vma != process.vm_manager.vma_map.end()) {
+        if (vma->second.permissions != Kernel::VMAPermission::ReadWrite ||
+            vma->second.meminfo_state != Kernel::MemoryState::Private) {
+            return false;
+        }
+        if (vma->second.base + vma->second.size >= buffer_ptr + size) {
+            return true;
+        }
+        vma = std::next(vma);
+    }
+    return false;
 }
 
 void RO::Initialize(Kernel::HLERequestContext& ctx) {