tipc: fix memory leak of group member when peer node is lost

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When a group member receives a member WITHDRAW event, this might have
two reasons: either the peer member is leaving the group, or the link
to the member's node has been lost.

In the latter case we need to issue a DOWN event to the user right away,
and let function tipc_group_filter_msg() perform delete of the member
item. However, in this case we miss to change the state of the member
item to MBR_LEAVING, so the member item is not deleted, and we have a
memory leak.

We now separate better between the four sub-cases of a WITHRAW event
and make sure that each case is handled correctly.

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Jon Maloy 2017-12-21 14:36:34 +01:00 • committed by David S. Miller

parent 4853f128c1

commit 3a33a19bf8

1 changed files with 18 additions and 9 deletions

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net/tipc/group.c

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