diff options
| author | libin <huawei.libin@huawei.com> | 2013-04-08 14:39:12 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-06-07 16:02:04 -0700 |
| commit | e5f1ec5d39f6d59bfe5c53f4b28a94e3a4245e02 (patch) | |
| tree | 72a98a486d26d757ef26ed5e6ccf25726d7b90ce /kernel | |
| parent | 4aff95ab8f985d14f585187b5f78c65a56dd716b (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>
Cc: Rui Xiang <rui.xiang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel')
| -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 550f971752f..e01398f0a52 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -5434,7 +5434,7 @@ 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, |