Messages in this thread Patch in this message | | | From | Jiasheng Jiang <> | Subject | [PATCH] sched/uclamp: potential dereference of null pointer | Date | Thu, 9 Dec 2021 11:31:27 +0800 |
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The return value of kzalloc() needs to be checked. To avoid use of null pointer in case of the failure of alloc.
Fixes: 391e43da797a ("sched: Move all scheduler bits into kernel/sched/") Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn> --- kernel/sched/core.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index e5858999b54d..988a4a372e14 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -8125,6 +8125,8 @@ void __init sched_init(void) #endif if (ptr) { ptr = (unsigned long)kzalloc(ptr, GFP_NOWAIT); + if (!ptr) + return; #ifdef CONFIG_FAIR_GROUP_SCHED root_task_group.se = (struct sched_entity **)ptr; -- 2.25.1
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