2aa7ebed246db4570a5eb905fe79ea
author Herbert Xu <herbert@gondor.apana.org.au> 1233875750 -0800
committer David S. Miller <davem@davemloft.net> 1233875750 -0800

ipv6: Copy cork options in ip6_append_data

As the options passed to ip6_append_data may be ephemeral, we need
to duplicate it for corking.  This patch applies the simplest fix
which is to memdup all the relevant bits.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
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