This bug is awaiting verification that the linux-
bluefield/5.15.0-1010.12 kernel in -proposed solves the problem. Please
test the kernel and update this bug with the results. If the problem is
solved, change the tag 'verification-needed-jammy' to 'verification-
done-jammy'. If the problem still exists, change the tag 'verification-
needed-jammy' to 'verification-failed-jammy'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags removed: verification-done-jammy
** Tags added: kernel-spammed-jammy-linux-bluefield verification-needed-jammy

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https://bugs.launchpad.net/bugs/1988809

Title:
  ip/nexthop: fix default address selection for connected nexthop

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Focal:
  Fix Released
Status in linux source package in Jammy:
  Fix Released

Bug description:
  [Impact]

  Packets sent by userland apps are rejected/dropped if the source
  address is not specified and the corresponding route is using a
  connected nexthop object.

  This bug exists since linux v5.3 and has been fixed in v5.19 by the following 
upstream commits:
   - 747c14307214 ("ip: fix dflt addr selection for connected nexthop")
     
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=747c14307214
   - cd72e61bad14 ("selftests/net: test nexthop without gw")
     
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cd72e61bad14
   - eb55dc09b5dd ("ip: fix triggering of 'icmp redirect'")
     
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=eb55dc09b5dd

  The last commit (v6.0) fixes a regression introduced by the first
  commit.

  [Test Case]

  A detailed test case is explained in the first commit and a self-test
  is added in the second commit.

  [Regression Potential]

  The patch modifies some internal routing states. It has been living in the 
upstream trees for 2 months and the reported regression about icmp redirects 
has been fixed.
  The risk of regression should be contained.

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