Commit-ID: fd9b86d37a600488dbd80fe60cca46b822bff1cd Gitweb: http://git.kernel.org/tip/fd9b86d37a600488dbd80fe60cca46b822bff1cd Author: libin <huawei.libin@xxxxxxxxxx> AuthorDate: Mon, 8 Apr 2013 14:39:12 +0800 Committer: Ingo Molnar <mingo@xxxxxxxxxx> CommitDate: Mon, 8 Apr 2013 13:23:03 +0200 sched/debug: Fix sd->*_idx limit range avoiding overflow Commit 201c373e8e ("sched/debug: Limit sd->*_idx range on sysctl") was an incomplete bug fix. This patch fixes sd->*_idx limit range to [0 ~ CPU_LOAD_IDX_MAX-1] avoiding array overflow caused by setting sd->*_idx to CPU_LOAD_IDX_MAX on sysctl. Signed-off-by: Libin <huawei.libin@xxxxxxxxxx> Cc: <jiang.liu@xxxxxxxxxx> Cc: <guohanjun@xxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Link: http://lkml.kernel.org/r/51626610.2040607@xxxxxxxxxx Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> --- kernel/sched/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 306943f..fa07792 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -4933,7 +4933,7 @@ static void sd_free_ctl_entry(struct ctl_table **tablep) } static int min_load_idx = 0; -static int max_load_idx = CPU_LOAD_IDX_MAX; +static int max_load_idx = CPU_LOAD_IDX_MAX-1; static void set_table_entry(struct ctl_table *entry, -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html