Thank you for your bug report
Till, do you know what impact that priority change failing has? Could
you check with the security team if that call should be allowed by
default in the cups profile?
** Changed in: cups (Ubuntu)
Assignee: (unassigned) => Till Kamppeter (till-kamppeter)
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https://bugs.launchpad.net/bugs/1897369
Title:
apparmor: Allow cups-browsed to change nice value (CAP_SYS_NICE)
Status in cups package in Ubuntu:
Confirmed
Bug description:
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"
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