** Changed in: linux (Ubuntu Impish)
Status: Confirmed => Fix Committed
** Changed in: linux (Ubuntu Focal)
Status: Confirmed => Fix Committed
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https://bugs.launchpad.net/bugs/1968591
Title:
xfrm interface cannot be changed anymore
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Focal:
Fix Committed
Status in linux source package in Impish:
Fix Committed
Bug description:
[Impact]
An xfrm interface cannot be changed any more since Ubuntu-hwe-5.4-5.4.0-105.
In fact, the regression has been introduced by this backport:
https://kernel.ubuntu.com/git/ubuntu/ubuntu-focal.git/commit/?id=13a02539b135
It has been fixed upstream by this commit:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6d0d95a1c2b0
[Test Case]
root@dut-vm:~# ip link add foo type xfrm if_id 1234 dev lo
root@dut-vm:~# ip link change foo type xfrm if_id 1234 dev ntfp1
Error: if_id must be non zero.
root@dut-vm:~# uname -a
Linux dut-vm 5.4.0-107-generic #121~18.04.1-Ubuntu SMP Thu Mar 24 17:21:33
UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
root@dut-vm:~#
[Regression Potential]
The patch is trivial, the potential regressions are low.
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