https://github.com/torvalds/linux
Revision ab58298cf459fcd4f588a401d36abf0bd2215b51 authored by Vegard Nossum on 05 July 2016, 19:12:53 UTC, committed by David S. Miller on 05 July 2016, 21:08:47 UTC
dn_fib_count_nhs() could enter an infinite loop if nhp->rtnh_len == 0
(i.e. if userspace passes a malformed netlink message).

Let's use the helpers from net/nexthop.h which take care of all this
stuff. We can do exactly the same as e.g. fib_count_nexthops() and
fib_get_nhs() from net/ipv4/fib_semantics.c.

This fixes the softlockup for me.

Cc: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent f5d6516
History
Tip revision: ab58298cf459fcd4f588a401d36abf0bd2215b51 authored by Vegard Nossum on 05 July 2016, 19:12:53 UTC
net: fix decnet rtnexthop parsing
Tip revision: ab58298
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