Merge branch 'ipv4-Prevent-user-triggerable-warning'

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Ido Schimmel says:

====================
net: ipv4: Prevent user triggerable warning

Patch #1 prevents a user triaggerable warning in the flow dissector by
setting 'skb->dev' in skbs used for IPv4 output route get requests.

Patch #2 adds a test case that triggers the warning without the first
patch.

I have audited all the RTM_GETROUTE handlers and could not find any
other callpath where an skb is passed to the flow dissector with both
'skb->dev' and 'skb->sk' cleared.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

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David S. Miller 2018-12-20 16:42:39 -08:00

parent 639c1b2625 676f4bb168

commit 7de333090a

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1

net/ipv4/route.c

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15

tools/testing/selftests/net/rtnetlink.sh

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