Thread (4 messages) 4 messages, 2 authors, 2021-07-12

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

From: patchwork-bot+netdevbpf@kernel.org
Date: 2021-07-12 17:50:05
Also in: bridge, stable

Hello:

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 <redacted>

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
    https://git.kernel.org/netdev/net/c/04bef83a3358
  - [net,2/2] net: bridge: multicast: fix MRD advertisement router port marking race
    https://git.kernel.org/netdev/net/c/000b7287b675

You are awesome, thank you!
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