linux-kernel - Re: [PATCH] team: fix qom_list corruption by using list_del_init

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <6934ed8a.a70a0220.38f243.003b.GAE@google.com>
Date: Sat, 06 Dec 2025 18:59:22 -0800
From: syzbot <syzbot+422806e5f4cce722a71f@...kaller.appspotmail.com>
To: dharanitharan725@...il.com
Cc: dharanitharan725@...il.com, linux-kernel@...r.kernel.org, 
	netdev@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [PATCH] team: fix qom_list corruption by using list_del_init_rcu()

> #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

This crash does not have a reproducer. I cannot test it.

>
> Reported-by: syzbot+422806e5f4cce722a71f@...kaller.appspotmail.com
> Signed-off-by: Dharanitharan R <dharanitharan725@...il.com>
> ---
>  drivers/net/team/team_core.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/team/team_core.c b/drivers/net/team/team_core.c
> index 4d5c9ae8f221..d6d724b52dbf 100644
> --- a/drivers/net/team/team_core.c
> +++ b/drivers/net/team/team_core.c
> @@ -823,7 +823,8 @@ static void __team_queue_override_port_del(struct team *team,
>  {
>  	if (!port->queue_id)
>  		return;
> -	list_del_rcu(&port->qom_list);
> +	/* Ensure safe repeated deletion */
> +	list_del_init_rcu(&port->qom_list);
>  }
>  
>  static bool team_queue_override_port_has_gt_prio_than(struct team_port *port,
> -- 
> 2.43.0
>