Re: [PATCH v4 00/29] virtually mapped stacks and thread_info cleanup

2016-06-29 Thread Mika Penttilä
On 29.06.2016 10:06, Mika Penttilä wrote: > On 06/27/2016 12:55 AM, Andy Lutomirski wrote: >> Hi all- >> >> Known issues: >> - tcp md5, virtio_net, and virtio_console will have issues. Eric Dumazet >>has a patch for tcp md5, and Michael Tsirkin says he'll fix virtio_net >>and

Re: [PATCH v4 00/29] virtually mapped stacks and thread_info cleanup

2016-06-29 Thread Mika Penttilä
On 29.06.2016 10:06, Mika Penttilä wrote: > On 06/27/2016 12:55 AM, Andy Lutomirski wrote: >> Hi all- >> >> Known issues: >> - tcp md5, virtio_net, and virtio_console will have issues. Eric Dumazet >>has a patch for tcp md5, and Michael Tsirkin says he'll fix virtio_net >>and

Re: [PATCH v4 00/29] virtually mapped stacks and thread_info cleanup

2016-06-29 Thread Mika Penttilä
On 06/27/2016 12:55 AM, Andy Lutomirski wrote: > Hi all- > > > Known issues: > - tcp md5, virtio_net, and virtio_console will have issues. Eric Dumazet >has a patch for tcp md5, and Michael Tsirkin says he'll fix virtio_net >and virtio_console. > How about PTRACE_SETREGS, it's using

Re: [PATCH v4 00/29] virtually mapped stacks and thread_info cleanup

2016-06-29 Thread Mika Penttilä
On 06/27/2016 12:55 AM, Andy Lutomirski wrote: > Hi all- > > > Known issues: > - tcp md5, virtio_net, and virtio_console will have issues. Eric Dumazet >has a patch for tcp md5, and Michael Tsirkin says he'll fix virtio_net >and virtio_console. > How about PTRACE_SETREGS, it's using

[PATCH v4 00/29] virtually mapped stacks and thread_info cleanup

2016-06-26 Thread Andy Lutomirski
Hi all- Since the dawn of time, a kernel stack overflow has been a real PITA to debug, has caused nondeterministic crashes some time after the actual overflow, and has generally been easy to exploit for root. With this series, arches can enable HAVE_ARCH_VMAP_STACK. Arches that enable it (just

[PATCH v4 00/29] virtually mapped stacks and thread_info cleanup

2016-06-26 Thread Andy Lutomirski
Hi all- Since the dawn of time, a kernel stack overflow has been a real PITA to debug, has caused nondeterministic crashes some time after the actual overflow, and has generally been easy to exploit for root. With this series, arches can enable HAVE_ARCH_VMAP_STACK. Arches that enable it (just