Messages in this thread | | | Subject | Re: [PATCH] net: sched: Fix a possible null-pointer dereference in dequeue_func() | From | Jia-Ju Bai <> | Date | Mon, 29 Jul 2019 15:32:00 +0800 |
| |
On 2019/7/29 14:56, Jiri Pirko wrote: > Mon, Jul 29, 2019 at 04:21:57AM 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. >> >> Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> > Fixes tag, please?
Sorry, I do not know what "fixes tag" means... I just find a possible bug and fix it in this patch.
Best wishes, Jia-Ju Bai
| |