On Mon, Jul 19, 2021 at 03:53:54PM +0300, Nikolay Aleksandrov wrote:
> From: Nikolay Aleksandrov <nikolay@xxxxxxxxxx>
>
> commit 04bef83a3358946bfc98a5ecebd1b0003d83d882 upstream.
>
> When a PIM hello packet is received on a bridge port with multicast
> snooping enabled, we mark it as a router port automatically, that
> includes adding that port the router port list. The multicast lock
> protects that list, but it is not acquired in the PIM message case
> leading to a race condition, we need to take it to fix the race.
>
> Cc: stable@xxxxxxxxxxxxxxx
> Fixes: 91b02d3d133b ("bridge: mcast: add router port on PIM hello message")
> Signed-off-by: Nikolay Aleksandrov <nikolay@xxxxxxxxxx>
> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
> ---
> net/bridge/br_multicast.c | 2 ++
> 1 file changed, 2 insertions(+)
Thanks for the backports, all now queued up.
greg k-h
