TensorFlow has Null Pointer Error in LookupTableImportV2

Impact

The function tf.raw_ops.LookupTableImportV2 cannot handle scalars in the values parameter and gives an NPE.

import tensorflow as tf

v = tf.Variable(1)

@tf.function(jit_compile=True)
def test():
   func = tf.raw_ops.LookupTableImportV2
   para={'table_handle': v.handle,'keys': [62.98910140991211, 94.36528015136719], 'values': -919}

   y = func(**para)
   return y

print(test())

Patches

We have patched the issue in GitHub commit 980b22536abcbbe1b4a5642fc940af33d8c19b69.

The fix will be included in TensorFlow 2.12. We will also cherrypick this commit on TensorFlow 2.11.1.

For more information

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Attribution

This vulnerability has been reported by r3pwnx of 360 AIVul Team