From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 6C8DD3B7754; Thu, 20 Aug 2026 19:31:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787254282; cv=none; b=LO7uNeQe6Mk8/nasxhtiKSjIAaSUJJQFcSUAOJ61QCSCe5SV4fMPutZ3+1thdYqkcUPncQF3E/c+fWKRuhwn7tsGvUiGd5sw+OEnCJvN8WjwYfY3cv+VM6vkavaLjyP57TaJx5r2hiy1HE6dl9T+Rwl0fagYHeRqzT1kUm5lGoQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787254282; c=relaxed/simple; bh=ElGyM0yAcz521CbqcIbqAlmTGiZGHHLtOrSc2QMwevI=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=HZHcDqbK2QKM8BanDg7+aljt6A1euyUYG1Rfmjc0uq16Y59LpCuOKE6zzn1hMPugJfSxgYOpU/IV0Me2Vf/sSn49kGeyZ2A9HLqC+u1lJJP+6Nj1rfv6Q8Fq21p/Zgt8u8zmSpotoWSU6EJTCFgzl3ELxf+p2JJ9J3OT0ADpjLY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ZW0Kmwiw; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ZW0Kmwiw" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 251D31F00A3A; Thu, 20 Aug 2026 19:31:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1787254279; bh=robnWwwNB+54qJB/M3NxFb8nKSzBS4OCaOxsDmFGSk0=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=ZW0KmwiwR7AVmeHulzhe2VWEWcPl5NiToqRS67ny4uELFrVYfQB69earEvFXyRUkA WDJVH/L7qMAiZjrZvLFxYm5AgMcOqoYF1/NnfmnjlMSdDOo7HO7wBQqZ6m0JWXTOfG YvizhPYwhdG/1MyoqMECkSvEw5s//jspk4o8P+0hiCIBPSEyZDBohCPOtMM5LIJCfa rsY/xttbrqpvmRK+xWkVvX4fqgYhWXGL7Q6Fk/wWPQWs0a7846Mifey640Qw8KAAtI 1M0FgbQNDEPkssBOpw6vJ9QVVOvaIICpoDaVM/a7NtLiMF74Tvcw9BxIrrZsyCd3wi Xs+lR7X7wKVpA== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 93B4E3924459; Thu, 20 Aug 2026 19:30:30 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net v3] ipv6: rpl: fix NULL dereference of idev in ipv6_rpl_srh_rcv() From: patchwork-bot+netdevbpf@kernel.org Message-Id: <178725422913.446762.11873517686880170201.git-patchwork-notify@kernel.org> Date: Thu, 20 Aug 2026 19:30:29 +0000 References: <20260817132644.2223-1-andrea.mayer@uniroma2.it> In-Reply-To: <20260817132644.2223-1-andrea.mayer@uniroma2.it> To: Andrea Mayer Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, dsahern@kernel.org, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, idosch@nvidia.com, alex.aring@gmail.com, justin.iurman@gmail.com, bestswngs@gmail.com, stefano.salsano@uniroma2.it, xmei5@asu.edu, stable@vger.kernel.org Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Mon, 17 Aug 2026 15:26:44 +0200 you wrote: > ipv6_rpl_srh_rcv() dereferences idev from __in6_dev_get() without a NULL > check when reading idev->cnf.rpl_seg_enabled. > > When the device's MTU drops below IPV6_MIN_MTU, addrconf_ifdown() clears > dev->ip6_ptr through RCU_INIT_POINTER(). A packet that passed the idev > check in ip6_rcv_core() can then reach ipv6_rpl_srh_rcv() with > dev->ip6_ptr already NULL. > > [...] Here is the summary with links: - [net,v3] ipv6: rpl: fix NULL dereference of idev in ipv6_rpl_srh_rcv() https://git.kernel.org/netdev/net/c/f826df95332c You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html