From: Hangbin Liu <liuhangbin@gmail.com>
To: Jakub Kicinski <kuba@kernel.org>
Cc: netdev@vger.kernel.org, Jay Vosburgh <jv@jvosburgh.net>,
Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Paolo Abeni <pabeni@redhat.com>, Jiri Bohac <jbohac@suse.cz>,
Liang Li <liali@redhat.com>,
Nikolay Aleksandrov <nikolay@nvidia.com>
Subject: Re: [PATCHv2 net] bonding: alb: fix UAF in rlb_arp_recv during bond up/down
Date: Wed, 18 Feb 2026 04:36:24 +0000 [thread overview]
Message-ID: <aZVByEOAYdR3WF4q@fedora> (raw)
In-Reply-To: <20260217164355.7139ab53@kernel.org>
On Tue, Feb 17, 2026 at 04:43:55PM -0800, Jakub Kicinski wrote:
> On Sat, 14 Feb 2026 09:15:41 +0000 Hangbin Liu wrote:
> > Fixes: e53665c6eaa6 ("bonding: delete migrated IP addresses from the rlb hash table")
>
> Ah, also AI says the issue existed already in
> 3aba891dde38 ("bonding: move processing of recv handlers into
> handle_frame()")
> not the exact trapping instruction but the hash table was used from
> recv_probe so at least a UAF would happen.
Not sure if I understand correctly. Do you mean we still able to access
rlb_arp_recv() after setting recv_probe to NULL?
OK, that also count as UAF, even though not crash would happen.
Thanks
Hangbin
next prev parent reply other threads:[~2026-02-18 4:36 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-14 9:15 [PATCHv2 net] bonding: alb: fix UAF in rlb_arp_recv during bond up/down Hangbin Liu
2026-02-14 20:49 ` Jay Vosburgh
2026-02-18 0:42 ` Jakub Kicinski
2026-02-18 0:43 ` Jakub Kicinski
2026-02-18 4:36 ` Hangbin Liu [this message]
2026-02-19 0:11 ` Jakub Kicinski
2026-02-19 13:34 ` Hangbin Liu
2026-02-19 13:39 ` Hangbin Liu
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