Re: [PATCH 3/8] xen/blkfront: don't take local copy of a request from the ring page

2021-05-17 Thread Juergen Gross
On 17.05.21 16:01, Jan Beulich wrote: On 13.05.2021 12:02, Juergen Gross wrote: In order to avoid a malicious backend being able to influence the local copy of a request build the request locally first and then copy it to the ring page instead of doing it the other way round as today. Signed-of

Re: [PATCH 3/8] xen/blkfront: don't take local copy of a request from the ring page

2021-05-17 Thread Jan Beulich
On 13.05.2021 12:02, Juergen Gross wrote: > In order to avoid a malicious backend being able to influence the local > copy of a request build the request locally first and then copy it to > the ring page instead of doing it the other way round as today. > > Signed-off-by: Juergen Gross Reviewed-

[PATCH 3/8] xen/blkfront: don't take local copy of a request from the ring page

2021-05-13 Thread Juergen Gross
In order to avoid a malicious backend being able to influence the local copy of a request build the request locally first and then copy it to the ring page instead of doing it the other way round as today. Signed-off-by: Juergen Gross --- drivers/block/xen-blkfront.c | 25 +++