linux-kernel - Re: [PATCH v2] udp6: Fix race condition in udp6

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Date:   Wed, 31 May 2023 09:40:20 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Vladislav Efanov <VEfanov@...ras.ru>
Cc:     willemdebruijn.kernel@...il.com, davem@...emloft.net,
        dsahern@...nel.org, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, lvc-project@...uxtesting.org
Subject: Re: [PATCH v2] udp6: Fix race condition in udp6_sendmsg & connect

Hello:

This patch was applied to netdev/net.git (main)
by David S. Miller <davem@...emloft.net>:

On Tue, 30 May 2023 14:39:41 +0300 you wrote:
> Syzkaller got the following report:
> BUG: KASAN: use-after-free in sk_setup_caps+0x621/0x690 net/core/sock.c:2018
> Read of size 8 at addr ffff888027f82780 by task syz-executor276/3255
> 
> The function sk_setup_caps (called by ip6_sk_dst_store_flow->
> ip6_dst_store) referenced already freed memory as this memory was
> freed by parallel task in udpv6_sendmsg->ip6_sk_dst_lookup_flow->
> sk_dst_check.
> 
> [...]

Here is the summary with links:
  - [v2] udp6: Fix race condition in udp6_sendmsg & connect
    https://git.kernel.org/netdev/net/c/448a5ce1120c

You are awesome, thank you!
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