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

2017-02-17 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]. >> >> Let me know if you'd

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

2017-02-16 Thread Eric Dumazet
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]. > > Let me know if you'd like more debug. Could you try the following patch ?

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

2017-02-16 Thread Eric Dumazet
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]. > > Let me know if you'd like more debug. Could you try the following patch ?

[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

[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