From: Michal Kubecek
Date: Fri, 8 Jul 2016 17:52:33 +0200 (CEST)
> If socket filter truncates an udp packet below the length of UDP header
> in udpv6_queue_rcv_skb() or udp_queue_rcv_skb(), it will trigger a
> BUG_ON in skb_pull_rcsum(). This BUG_ON (and therefore a system
From: Michal Kubecek
Date: Fri, 8 Jul 2016 17:52:33 +0200 (CEST)
> If socket filter truncates an udp packet below the length of UDP header
> in udpv6_queue_rcv_skb() or udp_queue_rcv_skb(), it will trigger a
> BUG_ON in skb_pull_rcsum(). This BUG_ON (and therefore a system crash if
> kernel is
On Sat, Jul 9, 2016 at 6:43 AM, Michal Kubecek wrote:
> On Sat, Jul 09, 2016 at 11:48:49AM +0200, Daniel Borkmann wrote:
>> On 07/09/2016 02:20 AM, Alexei Starovoitov wrote:
>> >On Sat, Jul 09, 2016 at 01:31:40AM +0200, Eric Dumazet wrote:
>> >>On Fri, 2016-07-08 at 17:52 +0200,
On Sat, Jul 9, 2016 at 6:43 AM, Michal Kubecek wrote:
> On Sat, Jul 09, 2016 at 11:48:49AM +0200, Daniel Borkmann wrote:
>> On 07/09/2016 02:20 AM, Alexei Starovoitov wrote:
>> >On Sat, Jul 09, 2016 at 01:31:40AM +0200, Eric Dumazet wrote:
>> >>On Fri, 2016-07-08 at 17:52 +0200, Michal Kubecek
On Sat, Jul 09, 2016 at 11:48:49AM +0200, Daniel Borkmann wrote:
> On 07/09/2016 02:20 AM, Alexei Starovoitov wrote:
> >On Sat, Jul 09, 2016 at 01:31:40AM +0200, Eric Dumazet wrote:
> >>On Fri, 2016-07-08 at 17:52 +0200, Michal Kubecek wrote:
> >>>If socket filter truncates an udp packet below the
On Sat, Jul 09, 2016 at 11:48:49AM +0200, Daniel Borkmann wrote:
> On 07/09/2016 02:20 AM, Alexei Starovoitov wrote:
> >On Sat, Jul 09, 2016 at 01:31:40AM +0200, Eric Dumazet wrote:
> >>On Fri, 2016-07-08 at 17:52 +0200, Michal Kubecek wrote:
> >>>If socket filter truncates an udp packet below the
On 07/09/2016 02:20 AM, Alexei Starovoitov wrote:
On Sat, Jul 09, 2016 at 01:31:40AM +0200, Eric Dumazet wrote:
On Fri, 2016-07-08 at 17:52 +0200, Michal Kubecek wrote:
If socket filter truncates an udp packet below the length of UDP header
in udpv6_queue_rcv_skb() or udp_queue_rcv_skb(), it
On 07/09/2016 02:20 AM, Alexei Starovoitov wrote:
On Sat, Jul 09, 2016 at 01:31:40AM +0200, Eric Dumazet wrote:
On Fri, 2016-07-08 at 17:52 +0200, Michal Kubecek wrote:
If socket filter truncates an udp packet below the length of UDP header
in udpv6_queue_rcv_skb() or udp_queue_rcv_skb(), it
On Sat, Jul 09, 2016 at 01:31:40AM +0200, Eric Dumazet wrote:
> On Fri, 2016-07-08 at 17:52 +0200, Michal Kubecek wrote:
> > If socket filter truncates an udp packet below the length of UDP header
> > in udpv6_queue_rcv_skb() or udp_queue_rcv_skb(), it will trigger a
> > BUG_ON in
On Sat, Jul 09, 2016 at 01:31:40AM +0200, Eric Dumazet wrote:
> On Fri, 2016-07-08 at 17:52 +0200, Michal Kubecek wrote:
> > If socket filter truncates an udp packet below the length of UDP header
> > in udpv6_queue_rcv_skb() or udp_queue_rcv_skb(), it will trigger a
> > BUG_ON in
On Fri, 2016-07-08 at 17:52 +0200, Michal Kubecek wrote:
> If socket filter truncates an udp packet below the length of UDP header
> in udpv6_queue_rcv_skb() or udp_queue_rcv_skb(), it will trigger a
> BUG_ON in skb_pull_rcsum(). This BUG_ON (and therefore a system crash if
> kernel is configured
On Fri, 2016-07-08 at 17:52 +0200, Michal Kubecek wrote:
> If socket filter truncates an udp packet below the length of UDP header
> in udpv6_queue_rcv_skb() or udp_queue_rcv_skb(), it will trigger a
> BUG_ON in skb_pull_rcsum(). This BUG_ON (and therefore a system crash if
> kernel is configured
If socket filter truncates an udp packet below the length of UDP header
in udpv6_queue_rcv_skb() or udp_queue_rcv_skb(), it will trigger a
BUG_ON in skb_pull_rcsum(). This BUG_ON (and therefore a system crash if
kernel is configured that way) can be easily enforced by an unprivileged
user which
If socket filter truncates an udp packet below the length of UDP header
in udpv6_queue_rcv_skb() or udp_queue_rcv_skb(), it will trigger a
BUG_ON in skb_pull_rcsum(). This BUG_ON (and therefore a system crash if
kernel is configured that way) can be easily enforced by an unprivileged
user which
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