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From: Markus Elfring <Markus.Elfring@web.de>
To: Yi Zou <03zouyi09.25@gmail.com>, netdev@vger.kernel.org
Cc: David Ahern <dsahern@kernel.org>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	LKML <linux-kernel@vger.kernel.org>,
	21210240012@m.fudan.edu.cn, 21302010073@m.fudan.edu.cn
Subject: Re: [PATCH] ipv6: ip6_fib: fix possible null-pointer-dereference in ipv6_route_native_seq_show
Date: Sat, 2 Nov 2024 18:30:22 +0100	[thread overview]
Message-ID: <359e4cfa-d1f4-41ce-a986-89440fcf66cd@web.de> (raw)
In-Reply-To: <CAH_kV5EXr6B3vU3mbwHYaCHdSeCcVw9DiNT4on5rNwiAE+svRg@mail.gmail.com>

>     Check if fib6_nh is non-NULL before accessing fib6_nh->fib_nh_gw_family
>     in ipv6_route_native_seq_show() to prevent a null-pointer dereference.
>     Assign dev as dev = fib6_nh ? fib6_nh->fib_nh_dev : NULL to ensure safe
>     handling when nexthop_fib6_nh(rt->nh) returns NULL.
Would you like to send another improved patch version (instead of a reply)
according to a change review?

Regards,
Markus

  parent reply	other threads:[~2024-11-02 17:30 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-11-01  4:48 Yi Zou
2024-11-01 16:45 ` Markus Elfring
     [not found]   ` <CAH_kV5EXr6B3vU3mbwHYaCHdSeCcVw9DiNT4on5rNwiAE+svRg@mail.gmail.com>
2024-11-02 17:30     ` Markus Elfring [this message]
2024-11-05 12:28 ` Paolo Abeni
2024-11-05 15:44   ` David Ahern

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