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| author | libin <huawei.libin@huawei.com> | 2013-04-08 14:39:12 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-04-08 13:23:03 +0200 |
| commit | fd9b86d37a600488dbd80fe60cca46b822bff1cd (patch) | |
| tree | 4ce6afb8ec12c2d411546a8c70aeeb73c20e8e53 /kernel/sched | |
| parent | a1cbcaa9ea87b87a96b9fc465951dcf36e459ca2 (diff) | |
| download | lwn-fd9b86d37a600488dbd80fe60cca46b822bff1cd.tar.gz lwn-fd9b86d37a600488dbd80fe60cca46b822bff1cd.zip | |
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@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>
Diffstat (limited to 'kernel/sched')
| -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 306943f531a3..fa077929e315 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, |