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Bug#990089: linux-image-4.19.0-17-amd64: lxc-attach fails with Failed to set AppArmor label unconfined

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Hi Mark,

On Sun, Jun 20, 2021 at 10:44:29AM +0100, Mark Grant wrote:
> Package: src:linux
> Version: 4.19.194-1
> Severity: normal
> 
> Dear Maintainer,
> 
> After upgrading from linux-image-4.19.0-16-amd64 to linux-image-4.19.0-17-amd64
> attaching an unprivileged linux container fails with the message:
> lxc-attach: debian-buster-amd64-basic: lsm/lsm.c: lsm_process_label_set_at: 174
> Operation not permitted - Failed to set AppArmor label "unconfined"
> Rebooting into linux-image-4.19.0-16-amd64 with no other changes, the lxc
> system works as expected.

I think this is the same issue as in #990072, would you be able to
test the patch as commited
https://salsa.debian.org/kernel-team/linux/-/commit/d3fc7c8514bed949d8797cfd3a50a1bed95629c0
?

Regards,
Salvatore

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Bug#990089: linux-image-4.19.0-17-amd64: lxc-attach fails with Failed to set AppArmor label unconfined Mark Grant <mark.alistair.grant@gmail.com> - 2021-06-20 11:50 +0200
  Bug#990089: linux-image-4.19.0-17-amd64: lxc-attach fails with Failed to set AppArmor label unconfined Salvatore Bonaccorso <carnil@debian.org> - 2021-06-20 20:50 +0200
    Bug#990089: linux-image-4.19.0-17-amd64: lxc-attach fails with Failed to set AppArmor label unconfined Gmail <mark.alistair.grant@gmail.com> - 2021-06-21 11:30 +0200

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