Re: [PATCH net] net: sched: fix NULL pointer dereference when action calls some targets

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, Aug 16, 2017 at 1:39 AM, Xin Long <lucien.xin@xxxxxxxxx> wrote:
> On Wed, Aug 9, 2017 at 7:33 AM, Cong Wang <xiyou.wangcong@xxxxxxxxx> wrote:
>> On Mon, Aug 7, 2017 at 7:33 PM, Xin Long <lucien.xin@xxxxxxxxx> wrote:
>>> On Tue, Aug 8, 2017 at 9:15 AM, Cong Wang <xiyou.wangcong@xxxxxxxxx> wrote:
>>>> This looks like a completely API burden?
>>> netfilter xt targets are not really compatible with netsched action.
>>> I've got to say, the patch is just a way to make checkentry return
>>> false and avoid panic. like [1] said
>>
>> I don't doubt you fix a crash, I am thinking if we can
>> "fix" the API instead of fixing the caller.
> Hi, Cong,
>
> For now, I don't think it's possible to change APIs or  some of their targets
> for the panic caused by action xt calling.
>
> The common way should be fixed in net_sched side.
>
> Given that the issue is very easy to triggered,
> let's wait for netfilter's replies for another few days,
> otherwise I will repost the fix, agree ?

Yeah, no objections from me.

By the way, do you know how other callers of this API
use 'entryinfo'? Do they pass the address of the struct
on stack too?
--
To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Netfitler Users]     [LARTC]     [Bugtraq]     [Yosemite Forum]

  Powered by Linux