Hi,
The fix for CVE-2017-16939 has been applied to v4.9.y, but not to v4.4.y
and older kernels. However, I confirmed that running the published POC
(see https://blogs.securiteam.com/index.php/archives/3535) does crash a 4.4
kernel.
I confirmed that the following two patches fix the problem in v4.4.y.
Please consider applying them to v4.4.y (and possibly v3.18.y).
fc9e50f5a5a4e ("netlink: add a start callback for starting a netlink dump")
1137b5e2529a8 ("ipsec: Fix aborted xfrm policy dump crash")
My apologies for the noise if this is already under consideration.
Thanks,
Guenter
