Re: [PATCH v2 0/3] Megasas: fix OOB access and NULL dereference issues

[Paolo Bonzini]

On 13/05/20 21:25, P J P wrote:
> From: Prasad J Pandit <address@hidden>
> 
>  Hello,
> 
> * First patch fixes an OOB access issue which may occur when a guest user
>   sets 'reply_queue_head' field to a negative or large positive value,
>   via 'struct mfi_init_qinfo' object in megasas_init_firmware(), such that
>   'index' variables in megasas_lookup_frame() goes beyond the
>   s->frames[MEGASAS_MAX_FRAMES=2048] array bounds.
>   -> https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg03131.html
> 
> * Second patch fixes a NULL pointer dereference issue which may occur
>   if megasas_enqueue_frame() routine returns a NULL frame for a given
>   'frame_addr' address.
>   -> https://bugs.launchpad.net/qemu/+bug/1878259
> 
> * Third patch updates other numeric fields of MegasasState to unsigned type.
> 
> Thank you.
> --
> Prasad J Pandit (3):
>   megasas: use unsigned type for reply_queue_head and check index
>   megasas: avoid NULL pointer dereference
>   megasas: use unsigned type for positive numeric fields
> 
>  hw/scsi/megasas.c | 44 ++++++++++++++++++++++----------------------
>  1 file changed, 22 insertions(+), 22 deletions(-)
> 
> --
> 2.25.4
> 

Queued, thanks (but see my comment on patch 2).

Thanks,

Paolo