Messages in this thread Patch in this message | | | Date | Mon, 8 Apr 2013 14:39:12 +0800 | From | libin <> | Subject | [PATCH resend] sched: Fix sd->*_idx limit range avoiding overflow |
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Commit 201c373e8e ("sched/debug: Limit sd->*_idx range on sysctl") was an incomplete bug fix. This patch fixs sd->*_idx limit range to [0 ~ CPU_LOAD_IDX_MAX - 1] avioding array overflow caused by setting sd->*_idx to CPU_LOAD_IDX_MAX on sysctl.
Signed-off-by: Libin <huawei.libin@huawei.com> --- kernel/sched/core.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 7f12624..ba89ada 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -4999,7 +4999,7 @@ 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, -- 1.6.0.2
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