Public bug reported:
2.22 added stricter mediation of sched_setscheduler which requires use
of 'process-control' with certain invocations of sched_setsceduler.
Testing and code searches for sched_setscheduler showed that this was
not an issue for most applications, but after 2.22 was released it was
found that qtbase-opensource-src uses sched_setscheduler indirectly as
part of QThread::Priority, and QThread::Priority is used extensively
under the hood by the libraries to support (at least) QML applications.
The fix is simple, adjust interfaces/seccomp/template.go from this:
sched_setscheduler 0 - -
back to:
sched_setscheduler
** Affects: snapd (Ubuntu)
Importance: Critical
Assignee: Jamie Strandboge (jdstrand)
Status: In Progress
** Changed in: snapd (Ubuntu)
Importance: Undecided => Critical
** Changed in: snapd (Ubuntu)
Status: New => In Progress
** Changed in: snapd (Ubuntu)
Assignee: (unassigned) => Jamie Strandboge (jdstrand)
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https://bugs.launchpad.net/bugs/1661265
Title:
[regression] sched_setscheduler denied with Qt/QML applications
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