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 B0CE8288C2F for ; Mon, 18 May 2026 23:40:12 +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=1779147612; cv=none; b=PYGeOzodfaQD2qPSXPxD2s1Kfew+I4BfDkowR9VvxMmMrXop/IOcz7+ajDkq7dcKcIavbKu+f/TzBpWhpb2RbNsc07bzTwJjR+YwqInQKFLqVnz+syVLdrC/hiYhs9o2QR4IH2Hm/+oRpIlUlmCpb1R67r0FIopQPz2ehIGYgok= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779147612; c=relaxed/simple; bh=ZUcdPgcixFOAKhT3lijqWeNjPrGYtWJZJMNizMoeJ7A=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=FkGHGQpnKu8eoaLK4lVTHUlAvU1BlSLhWwjgBkLHm7VVE0YJAv7A79SFCWJhIaTtbraMjBKpUOJdRdsiBJpjjOwgoHWpB9PBMsHOJGf/F1OZjiKRHC932KUXh/qUvK2Zr66JU5owqYZ0+8vuJYluDU0VBVsSoo88vqDdO0lRtFE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Dmp/bm07; 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="Dmp/bm07" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 38880C2BCB7; Mon, 18 May 2026 23:40:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1779147612; bh=ZUcdPgcixFOAKhT3lijqWeNjPrGYtWJZJMNizMoeJ7A=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=Dmp/bm07YRLhTqAxRAj+Uh1WUGzuI3e11R2zXlCSVp/xJb1nuWkjnGAQFDSl7cxqW FEQpCy1gVlJyOiIMcVuRdjnl3IX4cJ+14TVj1Npjbjr8z5OdKf7uSo9yEvIDyZhlnH MXlO/NGAV+FtzZRv0O5eD5sbCdr6BIRmV07SKIX5D8hpnJmkfNC+Tl2CJjLazxQs9P 4jsoGnD6muvxJHlxFoc0O/1DlB+M43tDKejGkdmWFUWARzxBpQGHXIKV/O/AS7/9mh vHuUKwkbMVnceTRlo2PmFMPuA3Vln0gZmTeW2Yx4aQIBOoSabvVk/5nfqoTx5f3Y4t 3Pc3wGPBeP8Eg== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id D0B2D3930CBF; Mon, 18 May 2026 23:40:24 +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] net: appletalk: fix NULL pointer dereference in aarp_send_ddp() From: patchwork-bot+netdevbpf@kernel.org Message-Id: <177914762338.2012201.13609103218137112848.git-patchwork-notify@kernel.org> Date: Mon, 18 May 2026 23:40:23 +0000 References: <20260514123806.3085961-3-bestswngs@gmail.com> In-Reply-To: <20260514123806.3085961-3-bestswngs@gmail.com> To: Weiming Shi Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, kees@kernel.org, netdev@vger.kernel.org, xmei5@asu.edu Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Thu, 14 May 2026 05:38:08 -0700 you wrote: > aarp_send_ddp() calls atalk_find_dev_addr(dev) in the LocalTalk fast > path without checking for NULL. When the device has no AppleTalk > interface configured (dev->atalk_ptr == NULL), this leads to a NULL > pointer dereference at the at->s_net access. > > KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] > RIP: 0010:aarp_send_ddp (net/appletalk/aarp.c:552 (discriminator 2)) > Call Trace: > > atalk_sendmsg (net/appletalk/ddp.c:1715) > __sys_sendto (net/socket.c:2265 (discriminator 1)) > __x64_sys_sendto (net/socket.c:2272) > do_syscall_64 (arch/x86/entry/syscall_64.c:94) > entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) > > [...] Here is the summary with links: - [net] net: appletalk: fix NULL pointer dereference in aarp_send_ddp() https://git.kernel.org/netdev/net/c/9e7f36ab5b7b You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html