Re: [B.A.T.M.A.N.] [PATCH next] batman-adv: fix global protection fault during soft_iface destruction

On Thursday, April 18, 2013 03:45:43 Antonio Quartulli wrote:

batadv_mesh_free() schedules some RCU callbacks which need the bat_priv struct to do their jobs, while free_netdev(), which is called immediately after, is destroying the private data.

Put an rcu_barrier() in the middle so that free_netdev() is invoked only after all the callbacks returned.

This bug has been introduced by ab8f433dd39be94e8617cff2dfe9f7eca162eb15 ("batman-adv: Move deinitialization of soft-interface to destructor")

Signed-off-by: Antonio Quartulli ordex@autistici.org

soft-interface.c | 7 +++++++ 1 file changed, 7 insertions(+)

Applied in revision 73eb82e.

Thanks, Marek