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Thomas Graf authored
Calling nla_nest_cancel() in a different order as the nesting was built up can lead to negative offsets being calculated which results in skb_trim() being called with an underflowed unsigned int. Warn if mark < skb->data as it's definitely a bug. Signed-off-by:
Thomas Graf <tgraf@suug.ch> Signed-off-by:
David S. Miller <davem@davemloft.net>
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