Re: [4.9.10] ip_route_me_harder() reading off-slab

2017-02-28 Thread Pablo Neira Ayuso
On Mon, Feb 27, 2017 at 10:41:48PM +0800, Daniel J Blueman wrote: > On 17 February 2017 at 15:39, Florian Westphal wrote: > > Daniel J Blueman wrote: > > > > [ CC nf-devel, pablo ] > > > >> When booting a VM in libvirt/KVM attached to a local bridge and KASAN >

Re: [4.9.10] ip_route_me_harder() reading off-slab

2017-02-27 Thread Daniel J Blueman
On 17 February 2017 at 15:39, Florian Westphal wrote: > Daniel J Blueman wrote: > > [ CC nf-devel, pablo ] > >> When booting a VM in libvirt/KVM attached to a local bridge and KASAN >> enabled on 4.9.10, we see a stream of KASAN warnings about off-slab >> access

Re: [4.9.10] ip_route_me_harder() reading off-slab

2017-02-17 Thread Daniel J Blueman
On 17 February 2017 at 13:36, Eric Dumazet wrote: > On Fri, 2017-02-17 at 12:36 +0800, Daniel J Blueman wrote: >> When booting a VM in libvirt/KVM attached to a local bridge and KASAN >> enabled on 4.9.10, we see a stream of KASAN warnings about off-slab >> access [1]. >>

Re: [4.9.10] ip_route_me_harder() reading off-slab

2017-02-16 Thread Florian Westphal
Daniel J Blueman wrote: [ CC nf-devel, pablo ] > When booting a VM in libvirt/KVM attached to a local bridge and KASAN > enabled on 4.9.10, we see a stream of KASAN warnings about off-slab > access [1]. > > Let me know if you'd like more debug. Does this patch help?

Re: [4.9.10] ip_route_me_harder() reading off-slab

2017-02-16 Thread Willy Tarreau
On Fri, Feb 17, 2017 at 01:34:11PM +0800, Daniel J Blueman wrote: > When booting a VM in libvirt/KVM attached to a local bridge and KASAN > enabled on 4.9.10, we see a stream of KASAN warnings about off-slab > access [1]. Did it start to appear with 4.9.10 or is 4.9.10 the first 4.9 kernel you

[4.9.10] ip_route_me_harder() reading off-slab

2017-02-16 Thread Daniel J Blueman
When booting a VM in libvirt/KVM attached to a local bridge and KASAN enabled on 4.9.10, we see a stream of KASAN warnings about off-slab access [1]. Let me know if you'd like more debug. Thanks, Daniel -- [1] [ 473.579567] BUG: KASAN: slab-out-of-bounds in ip_route_me_harder+0xbd5/0xf20 at