linux-kernel - Re: [PATCH net v3] ipv6/addrconf: fix a null-ptr-deref bug for ip6

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Date:   Thu, 28 Jul 2022 18:10:13 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Ziyang Xuan <william.xuanziyang@...wei.com>
Cc:     davem@...emloft.net, yoshfuji@...ux-ipv6.org, dsahern@...nel.org,
        edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net v3] ipv6/addrconf: fix a null-ptr-deref bug for ip6_ptr

Hello:

This patch was applied to netdev/net.git (master)
by Jakub Kicinski <kuba@...nel.org>:

On Thu, 28 Jul 2022 09:33:07 +0800 you wrote:
> Change net device's MTU to smaller than IPV6_MIN_MTU or unregister
> device while matching route. That may trigger null-ptr-deref bug
> for ip6_ptr probability as following.
> 
> =========================================================
> BUG: KASAN: null-ptr-deref in find_match.part.0+0x70/0x134
> Read of size 4 at addr 0000000000000308 by task ping6/263
> 
> [...]

Here is the summary with links:
  - [net,v3] ipv6/addrconf: fix a null-ptr-deref bug for ip6_ptr
    https://git.kernel.org/netdev/net/c/85f0173df35e

You are awesome, thank you!
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