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 EC9BB1DDC35 for ; Wed, 6 May 2026 00:41:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778028067; cv=none; b=F9LOkgDmHAC0/nNZ7ttRnrLG9nU+bRerm50IgSLN7rqZIhoCKbi3+AlGytWpW22JNmEJHYaD7oFhxrjJTAtJeWpGsjieZoLAMGq7t+qVrxvQ8+/8uKmplr7zzoZVnGDjJQa8Fz+6ByW8/TIK0DT+gigBIaLfp35M0dBLYeflIIw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778028067; c=relaxed/simple; bh=QFFeQHVwcNUKylrahhe7X/qXekc64+KmjPldkyM946w=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=q1UFBlrHGF1w+ttr0pa4jXJqHd5IX30hCyXO8XtPt6hdhUMv4/7D4XPN8flm107HwWwJo4PNAS3YHYCk5BfoqYiWpG+VSY8ePkRFuD/EjbpnZ9wybOVK9P60lzwFZJCfA6l4InEPZ1USSgQVeMxn/WbEVS+z82noQ98aQoxqIQQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=MGiLDpXw; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="MGiLDpXw" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8C3DBC2BCB4; Wed, 6 May 2026 00:41:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778028066; bh=QFFeQHVwcNUKylrahhe7X/qXekc64+KmjPldkyM946w=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=MGiLDpXwG/hHOTGFbMLw5FIfBlNjF+p+yTf10lMiV4JuOFkAZ8Nvar8uM9II1e/3H ALW3lFrPA2T7Axh0N1VwBOD0fIdHElxZxGNqYIxr0ft9jcHt/wyKeOeuL8s4aSiF14 8G4UbV+J9doOjibwXSEydvmjAFm7L6pYkn0lVmRHvI2QMLU5L2bGRuV3Y356PBjCFH lMx1DK3hquPECKOd9fYA37p3omra8mz+6vXfygRtksox0hRrnwc7VLLuR694cyK4kS cEhVhw5ePrqH615CnpXiZJufyYs82D1+RgFi11r9tNf9Z+0HNderzRhZMBEB5vnZhM JL5BDzZyHZvlw== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 02DD43930780; Wed, 6 May 2026 00:40:18 +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 v1 net] ipv6: Fix null-ptr-deref in fib6_mtu(). From: patchwork-bot+netdevbpf@kernel.org Message-Id: <177802801654.2324972.14096419110855519437.git-patchwork-notify@kernel.org> Date: Wed, 06 May 2026 00:40:16 +0000 References: <20260504064316.3820775-1-kuniyu@google.com> In-Reply-To: <20260504064316.3820775-1-kuniyu@google.com> To: Kuniyuki Iwashima Cc: dsahern@kernel.org, idosch@nvidia.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, kuni1840@gmail.com, netdev@vger.kernel.org, syzbot+01f005f9c6387ca6f6dd@syzkaller.appspotmail.com Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Mon, 4 May 2026 06:43:13 +0000 you wrote: > syzbot reported null-ptr-deref in fib6_mtu(). [0] > > When res->f6i->fib6_pmtu is 0 in fib6_mtu(), it fetches MTU from > __in6_dev_get(nh->fib_nh_dev)->cnf.mtu6. > > However, __in6_dev_get() could return NULL when the device is > being unregistered. > > [...] Here is the summary with links: - [v1,net] ipv6: Fix null-ptr-deref in fib6_mtu(). https://git.kernel.org/netdev/net/c/5ad509c1fdad You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html