Eric Dumazet bf40801a01 inet: frags: fix ip6frag_low_thresh boundary
commit 3d23401283e80ceb03f765842787e0e79ff598b7 upstream.

Giving an integer to proc_doulongvec_minmax() is dangerous on 64bit arches,
since linker might place next to it a non zero value preventing a change
to ip6frag_low_thresh.

ip6frag_low_thresh is not used anymore in the kernel, but we do not
want to prematuraly break user scripts wanting to change it.

Since specifying a minimal value of 0 for proc_doulongvec_minmax()
is moot, let's remove these zero values in all defrag units.

Fixes: 6e00f7dd5e4e ("ipv6: frags: fix /proc/sys/net/ipv6/ip6frag_low_thresh")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Maciej Żenczykowski <maze@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-08 11:25:32 +01:00
..
2019-01-13 10:05:33 +01:00
2018-05-16 10:06:51 +02:00
2019-01-26 09:42:55 +01:00
2015-11-23 14:56:15 -05:00
2015-10-07 04:27:43 -07:00
2018-12-01 09:46:34 +01:00
2019-02-06 19:43:06 +01:00
2018-11-10 07:41:34 -08:00
2019-01-13 10:05:28 +01:00
2018-02-25 11:03:37 +01:00
2018-11-10 07:41:41 -08:00