net: atlantic: verify hw_head_ lies within TX buffer ring
Bounds check hw_head index provided by NIC to verify it lies within the TX buffer ring. Reported-by:Aashay Shringarpure <aashay@google.com> Reported-by:
Yi Chou <yich@google.com> Reported-by:
Shervin Oloumi <enlightened@google.com> Signed-off-by:
Grant Grundler <grundler@chromium.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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