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

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On 2018年03月08日 23:50, Alexander Potapenko wrote:
On Thu, Mar 8, 2018 at 4:45 PM, Eric Dumazet<eric.dumazet@xxxxxxxxx>  wrote:
On 03/08/2018 07:20 AM, Alexander Potapenko wrote:
On Thu, Mar 8, 2018 at 4:15 PM, Eric Dumazet<eric.dumazet@xxxxxxxxx>
wrote:

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

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




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