Yan Yan ca142038a5 xfrm: Fix xfrm migrate issues when address family changes
[ Upstream commit e03c3bba351f99ad932e8f06baa9da1afc418e02 ]

xfrm_migrate cannot handle address family change of an xfrm_state.
The symptons are the xfrm_state will be migrated to a wrong address,
and sending as well as receiving packets wil be broken.

This commit fixes it by breaking the original xfrm_state_clone
method into two steps so as to update the props.family before
running xfrm_init_state. As the result, xfrm_state's inner mode,
outer mode, type and IP header length in xfrm_state_migrate can
be updated with the new address family.

Tested with additions to Android's kernel unit test suite:
https://android-review.googlesource.com/c/kernel/tests/+/1885354

Signed-off-by: Yan Yan <evitayan@google.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-03-19 13:44:43 +01:00
..
2022-03-11 12:11:54 +01:00
2021-06-03 09:00:50 +02:00
2022-03-19 13:44:43 +01:00
2021-08-04 12:46:43 +02:00
2021-06-18 10:00:06 +02:00