netdev - Re: [PATCH net] xfrm6: check ip6_dst_idev() return value in xfrm6_get

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Message-ID: <d1349a69-791f-474b-979b-a0f155c58a61@kernel.org>
Date: Sun, 16 Jun 2024 12:26:37 -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: Steffen Klassert <steffen.klassert@...unet.com>, netdev@...r.kernel.org,
 eric.dumazet@...il.com, syzbot <syzkaller@...glegroups.com>
Subject: Re: [PATCH net] xfrm6: check ip6_dst_idev() return value in
 xfrm6_get_saddr()

On 6/15/24 9:42 AM, Eric Dumazet wrote:
> ip6_dst_idev() can return NULL, xfrm6_get_saddr() must act accordingly.
> 
> syzbot reported:
> 

...

> 
> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
> Reported-by: syzbot <syzkaller@...glegroups.com>
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> ---
>  net/ipv6/xfrm6_policy.c | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
> 

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