sched/debug: Limit sd->*_idx range on sysctl

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Various sd->*_idx's are used for refering the rq's load average table
when selecting a cpu to run.  However they can be set to any number
with sysctl knobs so that it can crash the kernel if something bad is
given. Fix it by limiting them into the actual range.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1345104204-8317-1-git-send-email-namhyung@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>

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Namhyung Kim 2012-08-16 17:03:24 +09:00 • committed by Ingo Molnar

parent c751134ef8

commit 201c373e8e

1 changed files with 22 additions and 13 deletions

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kernel/sched/core.c

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