ipv6: fix crash on ICMPv6 redirects with prohibited/blackholed source

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There are other error values besides ip6_null_entry that can be returned by
ip6_route_redirect(): fib6_rule_action() can also result in
ip6_blk_hole_entry and ip6_prohibit_entry if such ip rules are installed.

Only checking for ip6_null_entry in rt6_do_redirect() causes ip6_ins_rt()
to be called with rt->rt6i_table == NULL in these cases, making the kernel
crash.

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Matthias Schiffer 2015-11-02 01:24:38 +01:00 • committed by David S. Miller

parent 4ab42d78e3

commit ec13ad1d70

1 changed files with 1 additions and 2 deletions

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net/ipv6/route.c

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