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From: patchwork-bot+netdevbpf@kernel.org
To: Eric Dumazet <edumazet@google.com>
Cc: davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com,
	dsahern@kernel.org, horms@kernel.org, netdev@vger.kernel.org,
	eric.dumazet@gmail.com,
	syzbot+179fc225724092b8b2b2@syzkaller.appspotmail.com,
	martin.lau@kernel.org
Subject: Re: [PATCH net] dst: fix races in rt6_uncached_list_del() and rt_del_uncached_list()
Date: Wed, 14 Jan 2026 03:10:10 +0000	[thread overview]
Message-ID: <176836021053.2567523.9034814725830906123.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20260112103825.3810713-1-edumazet@google.com>

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.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!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html



  parent reply	other threads:[~2026-01-14  3:13 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-01-12 10:38 [PATCH net] dst: fix races in rt6_uncached_list_del() and rt_del_uncached_list() Eric Dumazet
2026-01-12 15:23 ` David Ahern
2026-01-14  3:10 ` patchwork-bot+netdevbpf [this message]
2026-02-24 11:41 ` Hillf Danton
2026-02-24 11:58   ` Eric Dumazet
2026-02-25  7:33     ` Christian A. Ehrhardt
2026-02-25  8:15       ` Eric Dumazet

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