From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f206.google.com (mail-il1-f206.google.com [209.85.166.206]) (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 7D4EC1FCFD2 for ; Tue, 4 Mar 2025 10:01:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.206 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741082483; cv=none; b=YuhZwLnI96VC8f8+USy5dBUUhQAKC7175WchagBwIAcTySHmbnmks/GwkX/Cn3RPX7Mx+NdbZMzB0Fmuzra4ayCt1tfRn+aONkuQ8eg3G/t63MDFrZGZxvJZDsgOqVQsTY86LRe+QOHvyh3RwIp188kV9BAcn6ZL6uUiuQBkJjQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741082483; c=relaxed/simple; bh=IC2XuvAa0lYwETLpVyqSTP4i+snCCLzIsrczhgUaPW8=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=jJ7qt854Fw0dlUhB7N6gzU/lxow9leW14cNh6kMeUEUiJm0PxTzqeZ7EGqJAg/delA8tTpkeKEWCZ1ptv9+sSh6Yx9xaE9fvls5GHfqOdBkviWvLu+Yi6/coPgdLM6bOtv0dY2yzLZgoJhCzHsaF4JHRcSI41f1mCk64IlP/3qA= 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=209.85.166.206 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-il1-f206.google.com with SMTP id e9e14a558f8ab-3d289bf6c39so58827375ab.1 for ; Tue, 04 Mar 2025 02:01:21 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1741082480; x=1741687280; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=4/Zc68BmvYrG4jaGwK/AZGXtKiFZv6jpzD48qgb9cBE=; b=ApiyuMScV+z49+p70amVf8+rLUck6WYw0rY4PlpeGqnZxWPr4wp4Wrl7Jo0nQ8cZ/V VzJSbjHivy1e8MXf9jf+4VcccCeyWw785jtyK+hr8hRNlNnGGFlM4WLrTUgn8p5/lcon ECit2SXkuyr+DtzENpiD7Jp1D9QAqereEis9tdhJeBBcdeT9u94cU79Tgllexl3jkIUS CJhTzCHaHIzgjcvsUbjVYYTPJqixheIGVSvJJJpDK7h85bIA+TdNur2GgTlvcYcXJTsc +kiGzxBrKK8bKC08EJwr2Uz50ERiR0rQWpbKqpioK6jj1oN2l5gl7lHuso5rBfMt1aE9 6NGw== X-Forwarded-Encrypted: i=1; AJvYcCXZMoIlpHLHo5xk8jR216jGaZPU17DGKNU9GxX9TZZaiaYsgvKu4OESYjgQeb2l56KRooM4/8gJllkyFFg=@vger.kernel.org X-Gm-Message-State: AOJu0YzDmkPlSxUbbljUA2+9mtBPirRCtF5fqJ7hU9NWRY4hvER2ViRk oI+hnbSIZQUDsBa+zRvQoRvLFZnMMy4v8fnvvPDtrPvUnDsT56UuhduXGo9Z9dnSyA3wzGAJ9Fk AB5CAacgRRPXejkylPujJajfGgRtHDSvNW0LYxbyOmVtiNBQaAX7vfoM= X-Google-Smtp-Source: AGHT+IE+JQ3bVgUjZ4h9h61JVoaR+BgwUKVT1Lg/GxkRTFPjGUIJ8/JP6fybev+q2+bolt2673MCB9vANX5Y3q3LzSfEQCsZjav2 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:b4a:b0:3d0:f2ca:65aa with SMTP id e9e14a558f8ab-3d41dbf0910mr24052925ab.4.1741082480591; Tue, 04 Mar 2025 02:01:20 -0800 (PST) Date: Tue, 04 Mar 2025 02:01:20 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67c6cf70.050a0220.15b4b9.000a.GAE@google.com> Subject: [syzbot] [net?] WARNING in taprio_get_start_time From: syzbot To: davem@davemloft.net, edumazet@google.com, horms@kernel.org, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com, vinicius.gomes@intel.com, xiyou.wangcong@gmail.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 3424291dd242 Merge branch 'ipv4-fib-convert-rtm_newroute-a.. git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=11226fb8580000 kernel config: https://syzkaller.appspot.com/x/.config?x=1770b825960d3ae8 dashboard link: https://syzkaller.appspot.com/bug?extid=2ca2c2f6cd8f0efac48e 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/94c5b9f4e9a5/disk-3424291d.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/2c19be66773b/vmlinux-3424291d.xz kernel image: https://storage.googleapis.com/syzbot-assets/5defd4d4c3bb/bzImage-3424291d.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+2ca2c2f6cd8f0efac48e@syzkaller.appspotmail.com netlink: 8 bytes leftover after parsing attributes in process `syz.3.1243'. ------------[ cut here ]------------ WARNING: CPU: 1 PID: 10562 at net/sched/sch_taprio.c:1223 taprio_get_start_time+0x16d/0x1a0 net/sched/sch_taprio.c:1223 Modules linked in: CPU: 1 UID: 0 PID: 10562 Comm: syz.3.1243 Not tainted 6.14.0-rc4-syzkaller-00873-g3424291dd242 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:taprio_get_start_time+0x16d/0x1a0 net/sched/sch_taprio.c:1223 Code: 00 74 08 48 89 ef e8 d2 b0 23 f8 48 89 5d 00 31 c0 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 34 70 bc f7 90 <0f> 0b 90 b8 f2 ff ff ff eb dd 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c RSP: 0018:ffffc9000499ee40 EFLAGS: 00010293 RAX: ffffffff8a054f0c RBX: 0000000000000001 RCX: ffff88807bc0bc00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff888061f902d4 R08: ffffffff8a054eb5 R09: 1ffffffff28a973c R10: dffffc0000000000 R11: ffffffff816179a0 R12: 0000000000000000 R13: 0000002d526987fd R14: dffffc0000000000 R15: 0000000000000000 FS: 00007fbeb5b246c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f615db80f98 CR3: 0000000058954000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: taprio_change+0x240d/0x44f0 net/sched/sch_taprio.c:1939 taprio_init+0x9da/0xc80 net/sched/sch_taprio.c:2114 qdisc_create+0x9d4/0x11a0 net/sched/sch_api.c:1360 tc_modify_qdisc+0xbbb/0x1f10 rtnetlink_rcv_msg+0x73f/0xcf0 net/core/rtnetlink.c:6928 netlink_rcv_skb+0x206/0x480 net/netlink/af_netlink.c:2534 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline] netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1339 netlink_sendmsg+0x8de/0xcb0 net/netlink/af_netlink.c:1883 sock_sendmsg_nosec net/socket.c:709 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:724 ____sys_sendmsg+0x53a/0x860 net/socket.c:2564 ___sys_sendmsg net/socket.c:2618 [inline] __sys_sendmsg+0x269/0x350 net/socket.c:2650 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: 0033:0x7fbeb4d8d169 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:00007fbeb5b24038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fbeb4fa5fa0 RCX: 00007fbeb4d8d169 RDX: 0000000000000000 RSI: 00004000000007c0 RDI: 0000000000000004 RBP: 00007fbeb4e0e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fbeb4fa5fa0 R15: 00007ffce7058248 --- 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