** Changed in: linux (Ubuntu Focal)
Importance: Undecided => High
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https://bugs.launchpad.net/bugs/1934187
Title:
lxd exec fails
Status in linux package in Ubuntu:
Invalid
Status in linux source package in Bionic:
In Progress
Status in linux source package in Focal:
In Progress
Bug description:
[Impact]
lxd will not work, as lxc exec is not able to set the apparmor confinement
and bails out executing inside the container.
[Fix]
Revert upstream commit bfb819ea20ce8bbeeba17e1a6418bf8bda91fc28 ("proc: Check
/proc/$pid/attr/ writes against file opener").
[Test case]
lxd basic usage test suite was run.
On a 4.15 kernel, the whole lxd autopkgtest was run.
[Potential regression]
Unprivileged use of PID attributes may be permitted when they shouldn't.
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