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authorPeter Szilagyi <peszilagyi@gmail.com>2011-10-01 17:11:45 +0400
committerDenis Ovsienko <infrastation@yandex.ru>2012-02-14 03:06:00 +0400
commit7fd6cd819ff98f0580b745ba637990df9c20ef0f (patch)
treec95fc6bc290d170cd14a5962609df5baf577999d /redhat
parent4c0cf00afc4340a429a9c4830f638b4593d7c3af (diff)
isisd: fix circuit state machine
isisd has a so-called circuit state machine that takes care about the interface state changes, such as initializing, down, up. When an interface was brought down by a link failure, the interface information was deleted and set to NULL. When the link was restored later, the interface was looked up by the old pointer, but since it was cleared, it was never found again, resulting in an interface never entering the up state again. Also, the program regularly crashed because of a deleted pointer in the same context which was later accessed without any further checking. Signed-off-by: Fritz Reichmann <fritz@reichmann.nl>
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