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authorVlad Yasevich <vladislav.yasevich@hp.com>2007-09-16 16:02:12 -0700
committerDavid S. Miller <davem@davemloft.net>2007-09-16 16:02:12 -0700
commit293035479942400a7fe8e4f72465d4e4e466b91a (patch)
treeaf9890403a554b4cf8389a9116080a0d1aa187fb /include/net/sctp/sctp.h
parentddeee3ce7fbf0e800f2a26a76d6018b42b337cc2 (diff)
[SCTP]: Add RCU synchronization around sctp_localaddr_list
sctp_localaddr_list is modified dynamically via NETDEV_UP and NETDEV_DOWN events, but there is not synchronization between writer (even handler) and readers. As a result, the readers can access an entry that has been freed and crash the sytem. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Sridhar Samdurala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/sctp/sctp.h')
-rw-r--r--include/net/sctp/sctp.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index d529045c167..c9cc00c8578 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -123,6 +123,7 @@
* sctp/protocol.c
*/
extern struct sock *sctp_get_ctl_sock(void);
+extern void sctp_local_addr_free(struct rcu_head *head);
extern int sctp_copy_local_addr_list(struct sctp_bind_addr *,
sctp_scope_t, gfp_t gfp,
int flags);