Re: [Qemu-devel] [PATCH v3 0/4] ivshmem security fixes

[Paolo Bonzini <pbonzini@redhat.com>]

On 15/09/2014 18:40, Andreas Färber wrote:
> Hello,
> 
> This series tightens security on incoming data for ivshmem, originally sparked
> by SUSE's security team (Sebastian Krahmer). I've combined them and tackled
> remaining review feedback.
> 
> Regards,
> Andreas
> 
> Changes from Sebastian's #2:
> * Rebased onto Stefan's patches
> * Dropped g_realloc() check (Stefan)
> * Fixed fd leak and appended a patch fixing another one (Stefan)
> * Simplified comment (Stefan)
> 
> Changes from Stefan's series:
> * Modified to handle partial reads (Peter/Gerd)
> * Changed check from > to >= (Peter)
> 
> Cc: Cam Macdonell <cam@cs.ualberta.ca>
> Cc: Stefan Hajnoczi <stefanha@redhat.com>
> Cc: Michael S. Tsirkin <mst@redhat.com>
> Cc: Sebastian Krahmer <krahmer@suse.de>
> Cc: Peter Maydell <peter.maydell@linaro.org>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: David Marchand <david.marchand@6wind.com>
> 
> Andreas Färber (1):
>   ivshmem: Fix fd leak on error
> 
> Sebastian Krahmer (1):
>   ivshmem: Fix potential OOB r/w access
> 
> Stefan Hajnoczi (2):
>   ivshmem: Check ivshmem_read() size argument
>   ivshmem: validate incoming_posn value from server
> 
>  hw/misc/ivshmem.c | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++-----
>  1 file changed, 60 insertions(+), 6 deletions(-)
> 

These seem to have falled on the floor, and they're a dependency for
Andrew's error_report cleanup, so I picked them up.

Paolo