diff options
| author | libin <huawei.libin@huawei.com> | 2013-04-08 14:39:12 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-04-25 12:51:12 -0700 |
| commit | dd135b0d8977ef119c7908c0153c3e94d8110e58 (patch) | |
| tree | 1f63e5bc78e449aba24d782dd5526e7939192ec9 | |
| parent | 4f795d18597696cc0da217c5177ddd8e2fbbb932 (diff) | |
sched/debug: Fix sd->*_idx limit range avoiding overflow
commit fd9b86d37a600488dbd80fe60cca46b822bff1cd upstream.
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@huawei.com>
Cc: <jiang.liu@huawei.com>
Cc: <guohanjun@huawei.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/51626610.2040607@huawei.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | 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 32ab413d312..5e2f7c35208 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -4950,7 +4950,7 @@ 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, |