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 9C6483D3D15 for ; Thu, 22 Jan 2026 03:30:13 +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=1769052613; cv=none; b=QP/Ul7VgjsUWJ/3+S6Ke/DwUlS287j4KDBlwUx/K+WGFpd+22fQwykpe/haz7L69jt9yWGyup0/zqXbXywTkUirHPAA6D0g0U3xo/sW0/rZ53zUi0XH2v1Z18iDoLrENMYZdoRuB/yn+m/ECh5pHOT/e19X4I8dfQxav2NqvBV0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769052613; c=relaxed/simple; bh=SW4kZj8p54A7WYNDtsDaOcytHZBfw55vdzJjXr51XPc=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=sZMDOoV2bjwRy35EVzun3jmuDsIJY7sXM7KX8WE/+c+csOxHR/rQ2yZaReh2hxirWxi2QPhxm40+ys++bH0LMmNjhacqYlLt+dF0/IBO935qsivKU8qf90y+aqfKoaEz2DApC6kx+durMH6N6ecOSwCHeE9JhoOuoCOkEhQLLIg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=NF9+lXhx; 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="NF9+lXhx" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 21404C116C6; Thu, 22 Jan 2026 03:30:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1769052613; bh=SW4kZj8p54A7WYNDtsDaOcytHZBfw55vdzJjXr51XPc=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=NF9+lXhx0rPoupyv51KEqkZC2ibiRK9rWjwSk+68bJ1hAyGsxHBlHKILYjiMDSe9U eAruGNNR8hXJzrRk/zWzHvzrf/23tNZlmqqO4yktbGV9yrUayTnj8xgwfI6V7zZi88 f6Qd9c5GlOB5N5ygiuVH1NW8I6NRIT0pVp0Hi3dHdViHe7UQ15jBmwm207m32XqD3s FRdg0i5i2aKHme34ORFxS85kcSvliJJE4M6nGPUMbbPgeQJ+qWsXe8UVvChs6bIkkc sHNHAl8xdnvE9bBsKLaXZ3m1s/hCPNTEBpc+W9oI1dhZjnZQdB+lDvb1F+B4uQnbW4 8qbN/ou9YP/qg== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 11D1F3808200; Thu, 22 Jan 2026 03:30:11 +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] bonding: provide a net pointer to __skb_flow_dissect() From: patchwork-bot+netdevbpf@kernel.org Message-Id: <176905260960.1542867.1806985746457384098.git-patchwork-notify@kernel.org> Date: Thu, 22 Jan 2026 03:30:09 +0000 References: <20260120161744.1893263-1-edumazet@google.com> In-Reply-To: <20260120161744.1893263-1-edumazet@google.com> To: Eric Dumazet Cc: davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, netdev@vger.kernel.org, eric.dumazet@gmail.com, syzbot+c46409299c70a221415e@syzkaller.appspotmail.com, mcroce@redhat.com, sdf@fomichev.me Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Tue, 20 Jan 2026 16:17:44 +0000 you wrote: > After 3cbf4ffba5ee ("net: plumb network namespace into __skb_flow_dissect") > we have to provide a net pointer to __skb_flow_dissect(), > either via skb->dev, skb->sk, or a user provided pointer. > > In the following case, syzbot was able to cook a bare skb. > > WARNING: net/core/flow_dissector.c:1131 at __skb_flow_dissect+0xb57/0x68b0 net/core/flow_dissector.c:1131, CPU#1: syz.2.1418/11053 > Call Trace: > > bond_flow_dissect drivers/net/bonding/bond_main.c:4093 [inline] > __bond_xmit_hash+0x2d7/0xba0 drivers/net/bonding/bond_main.c:4157 > bond_xmit_hash_xdp drivers/net/bonding/bond_main.c:4208 [inline] > bond_xdp_xmit_3ad_xor_slave_get drivers/net/bonding/bond_main.c:5139 [inline] > bond_xdp_get_xmit_slave+0x1fd/0x710 drivers/net/bonding/bond_main.c:5515 > xdp_master_redirect+0x13f/0x2c0 net/core/filter.c:4388 > bpf_prog_run_xdp include/net/xdp.h:700 [inline] > bpf_test_run+0x6b2/0x7d0 net/bpf/test_run.c:421 > bpf_prog_test_run_xdp+0x795/0x10e0 net/bpf/test_run.c:1390 > bpf_prog_test_run+0x2c7/0x340 kernel/bpf/syscall.c:4703 > __sys_bpf+0x562/0x860 kernel/bpf/syscall.c:6182 > __do_sys_bpf kernel/bpf/syscall.c:6274 [inline] > __se_sys_bpf kernel/bpf/syscall.c:6272 [inline] > __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6272 > do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] > do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 > > [...] Here is the summary with links: - [net] bonding: provide a net pointer to __skb_flow_dissect() https://git.kernel.org/netdev/net/c/5f9b32909659 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html