Hello:
This patch was applied to netdev/net.git (main)
by Jakub Kicinski <[email protected]>:
On Thu, 3 Sep 2026 12:38:51 +0300 you wrote:
> Sashiko reported a bug [1] that br_multicast_del_port_group unlists the
> port group not using proper rcu helper that preserves the next pointer and
> after that immediately frees the port group without waiting for rcu grace
> period. The only rcu walker of mglist is br_multicast_list_adjacent() and
> it turns out that function has always been buggy because mglist was never
> properly converted to RCU. Fix it by converting it to rcu and moving its
> initialization after eth_addr's. Initializing p->next can use
> RCU_INIT_POINTER because we have a barrier from the hlist_add_head_rcu call
> later, besides we're initializing an unpublished structure anyway.
>
> [...]
Here is the summary with links:
- [net,v3] net: bridge: mcast: properly convert mglist to rcu
https://git.kernel.org/netdev/net/c/4b772869a1e5
You are awesome, thank you!
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