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[IPV6]: Fix rtnetlink dump infinite loop 

The recent change to netlink dump "done" callback handling broke IPv6
which played dirty tricks with the "done" callback.  This causes an
infinite loop during a dump.

The following patch fixes it.

This bug was reported by Jeff Garzik.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Herbert Xu 2005-11-12 12:12:05 -08:00 committed by David S. Miller
parent 4f005551a8
commit efacfbcb6c
1 changed files with 2 additions and 4 deletions
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6
net/ipv6/route.c
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@ -1701,10 +1701,8 @@ static void fib6_dump_end(struct netlink_callback *cb)
fib6_walker_unlink(w);
kfree(w);
}
if (cb->args[1]) {
cb->done = (void*)cb->args[1];
cb->args[1] = 0;
}
cb->done = (void*)cb->args[1];
cb->args[1] = 0;
}
static int fib6_dump_done(struct netlink_callback *cb)