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Date: Tue, 9 Apr 2024 18:15:05 +0200
From: Eric Dumazet <eric.dumazet@...il.com>
To: Edward Adam Davis <eadavis@...com>, netdev@...r.kernel.org,
 edumazet@...gle.com
Cc: andrii@...nel.org, ast@...nel.org, bpf@...r.kernel.org,
 daniel@...earbox.net, haoluo@...gle.com, john.fastabend@...il.com,
 jolsa@...nel.org, kpsingh@...nel.org, linux-kernel@...r.kernel.org,
 martin.lau@...ux.dev, sdf@...gle.com, song@...nel.org,
 syzkaller-bugs@...glegroups.com, yonghong.song@...ux.dev
Subject: Re: [PATCH] netfilter: x_tables: fix incorrect parameter length
 before call copy_from_sockptr


On 4/9/24 17:00, Edward Adam Davis wrote:
> If len < sizeof(tmp) it will trigger oob, so take the min of them.
>
> Signed-off-by: Edward Adam Davis <eadavis@...com>
> ---
>   net/ipv4/netfilter/arp_tables.c | 4 ++--
>   net/ipv4/netfilter/ip_tables.c  | 4 ++--
>   2 files changed, 4 insertions(+), 4 deletions(-)

Hi Edward

Already fixed in net tree


https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=0c83842df40f86e529db6842231154772c20edcc

Also a followup has been sent today

https://lore.kernel.org/netdev/20240409120741.3538135-1-edumazet@google.com/T/#u

Thanks.





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