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SubjectRe: Potential NULL pointer deference in net: sched
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On 10/7/19 2:08 PM, Yizhuo Zhai wrote:
> Hi All:
>
> net/sched/sch_mq.c:
> Inside function mq_dump_class(), mq_queue_get() could return NULL,
> however, the return value of dev_queue is not checked and get used.
> This could potentially be unsafe.
>
>

Not really.

mq_dump_class() is called by a layer that made sure the @cl argument
was not complete garbage.

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