tree 0e5ebe511f6f2e52e852c90dedcc24461515cfee
parent 27163138b4d80e36f2006273d66b6c122d241f30
author Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com> 1503585083 +0200
committer David S. Miller <davem@davemloft.net> 1503636874 -0700

tipc: reassign pointers after skb reallocation / linearization

In tipc_msg_reverse(), we assign skb attributes to local pointers
in stack at startup. This is followed by skb_linearize() and for
cloned buffers we perform skb relocation using pskb_expand_head().
Both these methods may update the skb attributes and thus making
the pointers incorrect.

In this commit, we fix this error by ensuring that the pointers
are re-assigned after any of these skb operations.

Fixes: 29042e19f2c60 ("tipc: let function tipc_msg_reverse() expand header
when needed")
Signed-off-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>