** Changed in: linux (Ubuntu Disco)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1836261
Title:
xfrm interface: several kernel panic
Status in linux package in Ubuntu:
Incomplete
Status in linux source package in Disco:
Fix Committed
Bug description:
BugLink: https://bugs.launchpad.net/bugs/1836261
[Impact]
Upstream has recently received a number of bug fixes that resolve
kernel panics, memory leaks, and list handling for virtual xfrm
interfaces that were debuted in 4.19.
[Test Case]
3 of the 5 patches have test cases in their commit message for
reproducing the fault they address.
Another patch prevents including a stale name in the log files.
And the other patch that doesn't have an explicit test case improves list
handling.
[Regression Potential]
This patchset contains a nontrivial amount of changes. However, the
heavier patches contain test cases that they resolve the regressions
they were created for. They've been upstream since July and I don't
see any follow up Fixes commits targeting these. The blast radius is
"only" the xfrm interface but this is smoke tested and if any
dependents rely on it for core functionality they might exercise it
and would possibly notice any issues by now as well.
Original bug description follows:
--------------------------------------------
There was several problems reported upstream:
1/ 56c5ee1a5823: xfrm interface: fix memory leak on creation
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=56c5ee1a5823
2/ xfrm interface: avoid corruption on changelink
http://patchwork.ozlabs.org/patch/1130240/
3/ xfrm interface: ifname may be wrong in logs
http://patchwork.ozlabs.org/patch/1130241/
4/ xfrm interface: fix list corruption for x-netns
http://patchwork.ozlabs.org/patch/1130385/
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