netdev - Re: [PATCH net] net: igmp: respect RCU rules in ip_mc_source() and ip_mc

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Date:   Sat, 30 Apr 2022 14:20:11 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
        dsahern@...nel.org, netdev@...r.kernel.org, edumazet@...gle.com,
        syzkaller@...glegroups.com, fbl@...close.org
Subject: Re: [PATCH net] net: igmp: respect RCU rules in ip_mc_source() and
 ip_mc_msfilter()

Hello:

This patch was applied to netdev/net.git (master)
by David S. Miller <davem@...emloft.net>:

On Fri, 29 Apr 2022 08:42:57 -0700 you wrote:
> From: Eric Dumazet <edumazet@...gle.com>
> 
> syzbot reported an UAF in ip_mc_sf_allow() [1]
> 
> Whenever RCU protected list replaces an object,
> the pointer to the new object needs to be updated
> _before_ the call to kfree_rcu() or call_rcu()
> 
> [...]

Here is the summary with links:
  - [net] net: igmp: respect RCU rules in ip_mc_source() and ip_mc_msfilter()
    https://git.kernel.org/netdev/net/c/dba5bdd57bea

You are awesome, thank you!
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