Really strange problem with evince PDF reader and .mutt directory

[nunojsilva at ist.utl.pt]

On 2019-10-20, Marcelo Laia wrote:

> On 20/10/19 at 02:02, Nuno Silva wrote:
>  
>> Do these systems have apparmor? It seems to be some sort of security
>> tool which restricts access to files and directories based on rules.
>
>
> Bingo!!!!
>
> root at marcelo:~# dpkg -l apparmor
> Desired=Unknown/Install/Remove/Purge/Hold
> | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
> |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
> ||/ Nome           Versão       Arquitectura Descrição
> +++-==============-============-============-======================================
> ii  apparmor       2.13.3-5     amd64        user-space parser utility for AppArmor
> root at marcelo:~# 

By the way: it seems that the .mutt rule was added to the apparmor
upstream repository during November 2018[1], which would explain why
this is something that didn't happen before.

[1] https://gitlab.com/apparmor/apparmor/commit/170e8d6ac8eb867d40f3361e1814b2304d647860

-- 
Nuno Silva