Mon, Jul 29, 2019 at 09:32:00AM CEST, [email protected] wrote:
>
>
>On 2019/7/29 14:56, Jiri Pirko wrote:
>> Mon, Jul 29, 2019 at 04:21:57AM CEST, [email protected] 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 <[email protected]>
>> Fixes tag, please?
>
>Sorry, I do not know what "fixes tag" means...
>I just find a possible bug and fix it in this patch.

git log |grep Fixes:

If A fix goes to -net tree, it most probably fixes some bug introduced
by some commit in the past. So this tag is to put a reference.


>
>
>Best wishes,
>Jia-Ju Bai

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