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 2E8DB2F39B8; Wed, 20 May 2026 02:00:02 +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=1779242404; cv=none; b=Bp8DzRXzLQxUwOgyq462cw9L2HFszT/ScZ8cxBWAYE10wkFWbyl03WeTNDHoq/d6dqyTpxno7uyBSpMIlwX9thR5Q6VlXFKdagB021nvft/W4uc+XnYu6ubOlF3YtRBkcl/dIPfRWRYgYbIxSnqC40kaaIB5WLw0avvDiQn/nZY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779242404; c=relaxed/simple; bh=gjgh8kdA3m/flPEQToQ1NLj0A2+4fb5TUiH2kSeFCt4=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=gigv6zsD16Lshsv0h0UIugQboYKCpF7tAjhWKEoZDln0q5lEt9tzQjUeL9fLco+DfFjdVWBcYRHz/LF5EAMDH5BgQTv3SkbyLkqhZnMY33pIBQyXCaCQ3HJDZvzpdosy9XTN3tn1yfbIsCSvN0lm6R7mFRoL+m2uj1I8TeGbdvc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=IS6hK3JM; 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="IS6hK3JM" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AF71C1F000E9; Wed, 20 May 2026 02:00:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1779242402; bh=mDQa/S199WfXqfZtismbjSDacf9NhvAaoC6w4ISijaM=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=IS6hK3JMuo7ESNyAKBQ0v1TYWTLCh8eDscxVMHvmt0GHw6mSY7dRFFYfEz37cBVtc WMqqgVk/yHmUM/9LP8Uwt3o8iddRIrl02rZLxDeqHV6vmLQ3ksde1zQgBifywY2K+M mUgb3/2oLMvK/21tE4w2pcr/u6Fmt+mKCSa1gVxOOlw/PTnwB9dWakictH2KzZ+Kxr RaAY2FdzYy4yW5vkeaN6qQtePzlK0D/KI1ZWrC698DIHMK6peFa7ygfYIwquOu/KUD GQG/e2eDo07ivHNF+H+ni28yqcj6UpyT/Fjt9WAiOKGlQhSk675O9nHd+I2Mmm0jZm 5SYoa/3YnNe/g== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 56962383BF53; Wed, 20 May 2026 02:00:14 +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] ipv6: ioam: add NULL check for idev in ipv6_hop_ioam() From: patchwork-bot+netdevbpf@kernel.org Message-Id: <177924241303.2949285.7584586372366351659.git-patchwork-notify@kernel.org> Date: Wed, 20 May 2026 02:00:13 +0000 References: <20260517183059.29140-1-justin.iurman@gmail.com> In-Reply-To: <20260517183059.29140-1-justin.iurman@gmail.com> To: Justin Iurman Cc: netdev@vger.kernel.org, davem@davemloft.net, dsahern@kernel.org, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, idosch@nvidia.com, stable@vger.kernel.org Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Sun, 17 May 2026 20:30:59 +0200 you wrote: > Reported by Sashiko: > > The function ipv6_hop_ioam() accesses > __in6_dev_get(skb->dev)->cnf.ioam6_enabled without validating the returned > idev pointer. Because addrconf_ifdown() can concurrently clear dev->ip6_ptr > via RCU, __in6_dev_get() can return NULL during interface teardown, which > could cause a NULL pointer dereference when processing an IOAM Hop-by-Hop > option. > > [...] Here is the summary with links: - [net] ipv6: ioam: add NULL check for idev in ipv6_hop_ioam() https://git.kernel.org/netdev/net/c/d4ea0dfd7501 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html