[Bridge] [PATCH net 0/2] net: bridge: multicast: fix automatic router port marking races

patchwork-bot+netdevbpf at kernel.org patchwork-bot+netdevbpf at kernel.org
Mon Jul 12 17:50:03 UTC 2021


This series was applied to netdev/net.git (refs/heads/master):

On Sun, 11 Jul 2021 12:56:27 +0300 you wrote:
> From: Nikolay Aleksandrov <nikolay at nvidia.com>
> Hi,
> While working on per-vlan multicast snooping I found two race conditions
> when multicast snooping is enabled. They're identical and happen when
> the router port list is modified without the multicast lock. One requires
> a PIM hello message to be received on a port and the other an MRD
> advertisement. To fix them we just need to take the multicast_lock when
> adding the ports to the router port list (marking them as router ports).
> Tested on an affected setup by generating the required packets while
> modifying the port list in parallel.
> [...]

Here is the summary with links:
  - [net,1/2] net: bridge: multicast: fix PIM hello router port marking race
  - [net,2/2] net: bridge: multicast: fix MRD advertisement router port marking race

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