Public bug reported:
In Ubuntu 20.04.1 with *cups-browsed* 1.27.4-1, apparmor prevents
`/usr/sbin/cups-browsed` to change its nice value.
$ sudo dmesg | grep apparmor
[541870.509461] audit: type=1400 audit(1600898428.089:60):
apparmor="DENIED" operation="capable" profile="/usr/sbin/cups-browsed"
pid=62030 comm="cups-browsed" capability=23 capname="sys_nice"
[628298.779668] audit: type=1400 audit(1600984854.115:61):
apparmor="DENIED" operation="capable" profile="/usr/sbin/cups-browsed"
pid=66850 comm="cups-browsed" capability=23 capname="sys_nice"
[714667.424963] audit: type=1400 audit(1601071220.527:62):
apparmor="DENIED" operation="capable" profile="/usr/sbin/cups-browsed"
pid=76828 comm="cups-browsed" capability=23 capname="sys_nice"
** Affects: cups (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1897369
Title:
apparmor: Allow cups-browsed to change nice value (CAP_SYS_NICE)
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