netdev - Re: [PATCH net] dst: fix races in rt6_uncached_list_del() and rt_del_uncached

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Message-Id: 
 <176836021053.2567523.9034814725830906123.git-patchwork-notify@kernel.org>
Date: Wed, 14 Jan 2026 03:10:10 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Eric Dumazet <edumazet@...gle.com>
Cc: davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
 dsahern@...nel.org, horms@...nel.org, netdev@...r.kernel.org,
 eric.dumazet@...il.com,
 syzbot+179fc225724092b8b2b2@...kaller.appspotmail.com, martin.lau@...nel.org
Subject: Re: [PATCH net] dst: fix races in rt6_uncached_list_del() and
 rt_del_uncached_list()

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@...nel.org>:

On Mon, 12 Jan 2026 10:38:25 +0000 you wrote:
> syzbot was able to crash the kernel in rt6_uncached_list_flush_dev()
> in an interesting way [1]
> 
> Crash happens in list_del_init()/INIT_LIST_HEAD() while writing
> list->prev, while the prior write on list->next went well.
> 
> static inline void INIT_LIST_HEAD(struct list_head *list)
> {
> 	WRITE_ONCE(list->next, list); // This went well
> 	WRITE_ONCE(list->prev, list); // Crash, @list has been freed.
> }
> 
> [...]

Here is the summary with links:
  - [net] dst: fix races in rt6_uncached_list_del() and rt_del_uncached_list()
    https://git.kernel.org/netdev/net/c/9a6f0c4d5796

You are awesome, thank you!
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