sched: Disallow sched_attr::sched_policy < 0
The scheduler uses policy=-1 to preserve the current policy state to implement sys_sched_setparam(), this got exposed to userspace by accident through sys_sched_setattr(), cure this. Reported-by:Michael Kerrisk <mtk.manpages@gmail.com> Signed-off-by:
Peter Zijlstra <peterz@infradead.org> Acked-by:
Michael Kerrisk <mtk.manpages@gmail.com> Cc: <stable@vger.kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/20140509085311.GJ30445@twins.programming.kicks-ass.net Signed-off-by:
Ingo Molnar <mingo@kernel.org>
parent
143cf23d
Please register or sign in to comment