Commit-ID: fd9b86d37a600488dbd80fe60cca46b822bff1cd
Gitweb: http://git.kernel.org/tip/fd9b86d37a600488dbd80fe60cca46b822bff1cd
Author: libin <[email protected]>
AuthorDate: Mon, 8 Apr 2013 14:39:12 +0800
Committer: Ingo Molnar <[email protected]>
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 <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
---
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,
--
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