Re: [PATCH] vhost_net: initialize rx_ring in vhost_net_open()

On 2018年03月08日 23:50, Alexander Potapenko wrote:

On Thu, Mar 8, 2018 at 4:45 PM, Eric Dumazet[off-list ref]  wrote:

quoted

On 03/08/2018 07:20 AM, Alexander Potapenko wrote:

quoted

On Thu, Mar 8, 2018 at 4:15 PM, Eric Dumazet[off-list ref]
wrote:

quoted

On 03/08/2018 05:37 AM, Alexander Potapenko wrote:

quoted

KMSAN reported a use of uninit memory in vhost_net_buf_unproduce()
while trying to access n->vqs[VHOST_NET_VQ_TX].rx_ring:


==================================================================

Signed-off-by: Alexander Potapenko<glider@google.com>

Please identify bug origin with a Fixes: tag

Fixes: 5990a30510ed1 ("tun/tap: use ptr_ring instead of skb_array")

Please send a V2 with this added tag. patchwork does not recognize it yet.

Ok, will do. Thanks for reminding about the tag!

The commit should be c67df11f6e480 ("vhost_net: try batch dequing from skb array").

Let me squash this patch into my series.

Thanks