From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f77.google.com (mail-io1-f77.google.com [209.85.166.77]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id ACBAF26982E for ; Tue, 18 Feb 2025 13:46:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.77 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739886386; cv=none; b=oJg/PMEgxMfdUUyucsEb1Y+n/dfAv/j+WqVibW266SXSvL7gjr0WaqOb926PUc3GxYTtVZvfzf7N7SgPPKORgBIihYUX7dYZX0yYZRIfO10zWrZGBgTj8Pl2zxaIyeRznBeYRcunSzazJQtXoQciABjJE3toIKcnSH+mqWagejc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739886386; c=relaxed/simple; bh=il08OLKjKuHNV8BTSYpPsn4tJgo+kR2RqcDKWXGg2gQ=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=Uwb5MEvj/MKeyuap7sC+z1ne6CeMCcniBHFfwXVDV+gL5Y7jqGpl1cV/zkO0FvYH7XrUPjCsNrzFZfBgsfNkV2WVJ+iJALhBlegh586qynQBDAXeq8MZsz7iP3VR4QNfMwayOot5kj6pY3O/fgKaM906nJo81FHT+clmDzzxGj4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.77 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f77.google.com with SMTP id ca18e2360f4ac-8559792ada5so287077739f.0 for ; Tue, 18 Feb 2025 05:46:24 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1739886384; x=1740491184; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=Wlp3UV1yF73fleHjaJzrNOPIjk7ttS5DgEpGbxNngV8=; b=RnMXuhGw6nMapXLFzYaRQ9r7cOrlvzsDxQ2xazL2S0mueh9kan/N+/K5G3K/dZpXnT hC4kJJOax6cutGuGtGjldOEjBlJeNpjYfRxT4VYaAoGPRMhIhxmfuUBcb9+sIlJkrkq8 JoMX6+onrkxprX3OvZibYVJkPH5BCEq9w4DgN4vAR3RdLMW6QG3DkXqxVlWMkM2HwctA QleuQSaqMlgmcCMCE45dRsDFQlLf9u4Or2ItLbCsznbplMIo5iZ5NGljEGiUdIWvc691 gPGpDaZGyqlYFkATptghDyMZ5jtFDVx1vqc45qrZffOQ8IXnAsL/Cwn0wVY9jZ34L9Lq FoSw== X-Forwarded-Encrypted: i=1; AJvYcCWZXh6hlAEx1H/2asLsQhxBOt1nCTuMfH9gYQ7noghel/oZygk4qbVyHzRg9hBMSkSb/ABniA==@lists.linux.dev X-Gm-Message-State: AOJu0YwL6115ym0/FxYUuv2BCNFnHmweair7GmKE0RXdVUJXC8RoqmbR Ru4Za5s2k3TizjyEeAtzAq6UDjd67chk6Eiy7JN3tuc2Cc5TvP3k4FoZJsmxEU471ZR2Vn/nmzD 50Nf3IZXZo8DgfrKkW9BfyevHQfK8PMdEnmQvKMGNTwANooezmDAdlGs= X-Google-Smtp-Source: AGHT+IHRF8HXAs3t/VFjdcyM1iNnTahzHbeP27tXqsh2vjEjukNWoxag3AddLmPmeC5h3wzJiZW/36N7QYTboy/DfaVCT+iKPIxD Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6602:1686:b0:855:2f41:f85a with SMTP id ca18e2360f4ac-8557a13f969mr1345339839f.9.1739886383740; Tue, 18 Feb 2025 05:46:23 -0800 (PST) Date: Tue, 18 Feb 2025 05:46:23 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67b48f2f.050a0220.173698.0063.GAE@google.com> Subject: [syzbot] [mptcp?] WARNING in mptcp_pm_nl_addr_send_ack From: syzbot To: davem@davemloft.net, edumazet@google.com, geliang@kernel.org, horms@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, martineau@kernel.org, matttbe@kernel.org, mptcp@lists.linux.dev, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: ad1b832bf1cf Merge tag 'devicetree-fixes-for-6.14-1' of gi.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=13798898580000 kernel config: https://syzkaller.appspot.com/x/.config?x=e55cabe422b4fcaf dashboard link: https://syzkaller.appspot.com/bug?extid=cd3ce3d03a3393ae9700 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/9de6d97a8d34/disk-ad1b832b.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/258463d6a9b5/vmlinux-ad1b832b.xz kernel image: https://storage.googleapis.com/syzbot-assets/f0449b94f00a/bzImage-ad1b832b.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+cd3ce3d03a3393ae9700@syzkaller.appspotmail.com netlink: 8 bytes leftover after parsing attributes in process `syz.0.205'. netlink: 8 bytes leftover after parsing attributes in process `syz.0.205'. ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6693 at ./include/net/sock.h:1711 sock_owned_by_me include/net/sock.h:1711 [inline] WARNING: CPU: 0 PID: 6693 at ./include/net/sock.h:1711 msk_owned_by_me net/mptcp/protocol.h:363 [inline] WARNING: CPU: 0 PID: 6693 at ./include/net/sock.h:1711 mptcp_pm_nl_addr_send_ack+0x57c/0x610 net/mptcp/pm_netlink.c:788 Modules linked in: CPU: 0 UID: 0 PID: 6693 Comm: syz.0.205 Not tainted 6.14.0-rc2-syzkaller-00303-gad1b832bf1cf #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:sock_owned_by_me include/net/sock.h:1711 [inline] RIP: 0010:msk_owned_by_me net/mptcp/protocol.h:363 [inline] RIP: 0010:mptcp_pm_nl_addr_send_ack+0x57c/0x610 net/mptcp/pm_netlink.c:788 Code: 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 ca 7b d3 f5 eb b9 e8 c3 7b d3 f5 90 0f 0b 90 e9 dd fb ff ff e8 b5 7b d3 f5 90 <0f> 0b 90 e9 3e fb ff ff 44 89 f1 80 e1 07 38 c1 0f 8c eb fb ff ff RSP: 0000:ffffc900034f6f60 EFLAGS: 00010283 RAX: ffffffff8bee3c2b RBX: 0000000000000001 RCX: 0000000000080000 RDX: ffffc90004d42000 RSI: 000000000000a407 RDI: 000000000000a408 RBP: ffffc900034f7030 R08: ffffffff8bee37f6 R09: 0100000000000000 R10: dffffc0000000000 R11: ffffed100bcc62e4 R12: ffff88805e6316e0 R13: ffff88805e630c00 R14: dffffc0000000000 R15: ffff88805e630c00 FS: 00007f7e9a7e96c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2fd18ff8 CR3: 0000000032c24000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mptcp_pm_remove_addr+0x103/0x1d0 net/mptcp/pm.c:59 mptcp_pm_remove_anno_addr+0x1f4/0x2f0 net/mptcp/pm_netlink.c:1486 mptcp_nl_remove_subflow_and_signal_addr net/mptcp/pm_netlink.c:1518 [inline] mptcp_pm_nl_del_addr_doit+0x118d/0x1af0 net/mptcp/pm_netlink.c:1629 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0xb1f/0xec0 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x206/0x480 net/netlink/af_netlink.c:2543 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline] netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1348 netlink_sendmsg+0x8de/0xcb0 net/netlink/af_netlink.c:1892 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:733 ____sys_sendmsg+0x53a/0x860 net/socket.c:2573 ___sys_sendmsg net/socket.c:2627 [inline] __sys_sendmsg+0x269/0x350 net/socket.c:2659 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7e9998cde9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7e9a7e9038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f7e99ba5fa0 RCX: 00007f7e9998cde9 RDX: 000000002000c094 RSI: 0000400000000000 RDI: 0000000000000007 RBP: 00007f7e99a0e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f7e99ba5fa0 R15: 00007fff49231088 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup