** Also affects: linux (Ubuntu Impish)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1936475
Title:
ipv6: fix 'disable_policy' for forwarded packets
Status in linux package in Ubuntu:
New
Status in linux source package in Impish:
New
Bug description:
[Impact]
The ipv6 sysctl entry 'disable_policy' has effect for local packets
only (while the ipv4 version is for all packets coming from the
specified interface).
This is fixed upstream with commit ccd27f05ae7b ("ipv6: fix
'disable_policy' for fwd packets").
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ccd27f05ae7b
[Test Case]
Enable 'disable_policy' for an interface:
sysctl -w net.ipv6.conf.eth0.disable_policy=1
Add an ipsec policy:
ip xfrm policy add src fd00:100::/64 dst fd00:200::/64 dir out tmpl src
fd00:125::1 dst fd00:125::2 proto esp mode tunnel
Try a ping from subnet fd00:100::/64 to subnet fd00:200::/64.
[Regression Potential]
The patch is small and located in ip6_forward(), thus only this
function is affected.
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