From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F25B01C3B for ; Thu, 7 Dec 2023 03:10:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="qP/jInMv" Received: by smtp.kernel.org (Postfix) with ESMTPS id 84EC0C433CA; Thu, 7 Dec 2023 03:10:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1701918624; bh=CxbWwYR9nNOhf83mDjbMnPggh99gL/cNE89T71Ok0iM=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=qP/jInMvoUvanXpiDINCbTM2GUogn66+9IDLCpL7iJmSgsn/I7CdKAa9pABtyKPu7 ZWis67V/Aq9IP+tCtjawSLMHohUObDYJci5UWpFTluYziv4WNucwpQZDCYUDPG53iV OhwkQ8628Osh1koAjhwBr3fdTz2jPKDje7crxnTOFmhhaIn/Jj9Is34GXCFBze3Wmd GNfM9wsmYmkf/3lv4LBtZZeMi74IoM2T4Um7S+Jem4I3lqLzQyGy19yWGxV+2BDUuj ITiw7TjhL6hTn+y9egTjw0U3MiKEFDPyM3Mq9bxt2+syPf8JuhBKlFcFrk+7GjWeVV jQEE9CESFDFvg== Received: from aws-us-west-2-korg-oddjob-1.ci.codeaurora.org (localhost.localdomain [127.0.0.1]) by aws-us-west-2-korg-oddjob-1.ci.codeaurora.org (Postfix) with ESMTP id 71563C04D3F; Thu, 7 Dec 2023 03:10:24 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net-next] ipv6: add debug checks in fib6_info_release() From: patchwork-bot+netdevbpf@kernel.org Message-Id: <170191862445.7525.14404095197034927243.git-patchwork-notify@kernel.org> Date: Thu, 07 Dec 2023 03:10:24 +0000 References: <20231205173250.2982846-1-edumazet@google.com> In-Reply-To: <20231205173250.2982846-1-edumazet@google.com> To: Eric Dumazet Cc: davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com, dsahern@kernel.org, netdev@vger.kernel.org, eric.dumazet@gmail.com Hello: This patch was applied to netdev/net-next.git (main) by Jakub Kicinski : On Tue, 5 Dec 2023 17:32:50 +0000 you wrote: > Some elusive syzbot reports are hinting to fib6_info_release(), > with a potential dangling f6i->gc_link anchor. > > Add debug checks so that syzbot can catch the issue earlier eventually. > > BUG: KASAN: slab-use-after-free in __hlist_del include/linux/list.h:990 [inline] > BUG: KASAN: slab-use-after-free in hlist_del_init include/linux/list.h:1016 [inline] > BUG: KASAN: slab-use-after-free in fib6_clean_expires_locked include/net/ip6_fib.h:533 [inline] > BUG: KASAN: slab-use-after-free in fib6_purge_rt+0x986/0x9c0 net/ipv6/ip6_fib.c:1064 > Write of size 8 at addr ffff88802805a840 by task syz-executor.1/10057 > > [...] Here is the summary with links: - [net-next] ipv6: add debug checks in fib6_info_release() https://git.kernel.org/netdev/net-next/c/5a08d0065a91 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html