netdev - Re: [PATCH net] ipv6: avoid possible NULL deref in rt6_uncached_list_flush

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Message-ID: <a2dec615-4f4b-49bc-bf0f-3ed0e4b5a7c6@kernel.org>
Date: Fri, 13 Sep 2024 08:31:39 -0600
From: David Ahern <dsahern@...nel.org>
To: Eric Dumazet <edumazet@...gle.com>, "David S . Miller"
 <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>,
 Paolo Abeni <pabeni@...hat.com>
Cc: netdev@...r.kernel.org, eric.dumazet@...il.com,
 "Eric W. Biederman" <ebiederm@...ssion.com>, Martin KaFai Lau <kafai@...com>
Subject: Re: [PATCH net] ipv6: avoid possible NULL deref in
 rt6_uncached_list_flush_dev()

On 9/13/24 2:31 AM, Eric Dumazet wrote:
> Blamed commit accidentally removed a check for rt->rt6i_idev being NULL,
> as spotted by syzbot:
> 

...

> Fixes: e332bc67cf5e ("ipv6: Don't call with rt6_uncached_list_flush_dev")
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Cc: Eric W. Biederman <ebiederm@...ssion.com>
> Cc: Martin KaFai Lau <kafai@...com>
> ---
>  net/ipv6/route.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 

Reviewed-by: David Ahern <dsahern@...nel.org>