Messages in this thread | | | Date | Mon, 29 Jul 2019 10:42:28 +0200 | From | Jiri Pirko <> | Subject | Re: [PATCH v3] net: sched: Fix a possible null-pointer dereference in dequeue_func() |
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Mon, Jul 29, 2019 at 10:24:33AM CEST, baijiaju1990@gmail.com wrote: >In dequeue_func(), there is an if statement on line 74 to check whether >skb is NULL: > if (skb) > >When skb is NULL, it is used on line 77: > prefetch(&skb->end); > >Thus, a possible null-pointer dereference may occur. > >To fix this bug, skb->end is used when skb is not NULL. > >This bug is found by a static analysis tool STCheck written by us. > >Fixes: 76e3cc126bb2 ("codel: Controlled Delay AQM") >Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
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