On 27.09.19 15:33, Claudio Imbrenda wrote:
> From: Janosch Frank <fran...@linux.ibm.com>
>
> All sclp codes need to be checked for page boundary violations.
>
> Signed-off-by: Janosch Frank <fran...@linux.ibm.com>
> Reviewed-by: Jason J. Herne <jjhe...@linux.ibm.com>
> ---
> hw/s390x/sclp.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/hw/s390x/sclp.c b/hw/s390x/sclp.c
> index 95ebfe7..73244c9 100644
> --- a/hw/s390x/sclp.c
> +++ b/hw/s390x/sclp.c
> @@ -234,6 +234,11 @@ int sclp_service_call(CPUS390XState *env, uint64_t sccb,
> uint32_t code)
> goto out_write;
> }
>
> + if ((sccb + be16_to_cpu(work_sccb.h.length)) > ((sccb & PAGE_MASK) +
> PAGE_SIZE)) {
> + work_sccb.h.response_code =
> cpu_to_be16(SCLP_RC_SCCB_BOUNDARY_VIOLATION);
> + goto out_write;
> + }
> +
> sclp_c->execute(sclp, &work_sccb, code);
> out_write:
> cpu_physical_memory_write(sccb, &work_sccb,
>
Reviewed-by: David Hildenbrand <da...@redhat.com>
--
Thanks,
David / dhildenb
