KVS: Add error check for offset size (#9954)

Check the offset size isn't bigger then the read size and return error.
project-chip · Oct 5, 2021 · 4703618 · 4703618
1 parent d1bf454
commit 4703618
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/platform/Linux/KeyValueStoreManagerImpl.cpp b/src/platform/Linux/KeyValueStoreManagerImpl.cpp
@@ -56,6 +56,10 @@ CHIP_ERROR KeyValueStoreManagerImpl::_Get(const char * key, void * value, size_t
     {
         return err;
     }
+    else if (offset_bytes > read_size)
+    {
+        return CHIP_ERROR_INVALID_ARGUMENT;
+    }
 
     Platform::ScopedMemoryBuffer<uint8_t> buf;
     VerifyOrReturnError(buf.Alloc(read_size), CHIP_ERROR_NO_MEMORY);