David S. Miller dccd9ecc37
ipv4: Do not use dead fib_info entries. ...
Due to RCU lookups and RCU based release, fib_info objects can
be found during lookup which have fi->fib_dead set.
We must ignore these entries, otherwise we risk dereferencing
the parts of the entry which are being torn down.
Reported-by: Yevgen Pronenko <yevgen.pronenko@sonymobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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