From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f207.google.com (mail-il1-f207.google.com [209.85.166.207]) (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 F005C33556B for ; Thu, 30 Oct 2025 22:14:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.207 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761862470; cv=none; b=DCV7OTH/TcTxK9q105FBprjdJWM3pDQXJ31FX/A3VaZVaXNpVb0y8VmCmYAExDxuaR28naw3pVteR9csgOvV3aKFQYXdGBA3bpKTbt1i0I03MUjUKJV7ciZWRDMeY0l9TO1sgAf1CqA/S0zK7H3C0tAo0itqGmS8SVvHbqheMos= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761862470; c=relaxed/simple; bh=6fYhdpG1Ub6R9qOagykrSkOktoB2nv95+eCVFHUdUDA=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=E1D44tmwTKbsVcDTkZdMfGKhESGRN+YPV0ASIPEULskl1O6kvEuB4yE2mExw5tXmQCpYbHme/yVq5JJQBYTnoA3FNr9+Q5LZsHC2UW0Zuqd0jkm+0O7bvkCM0oWrPVQyMR1ajerclQ2TCgxPrt/nIi06TwmiWciFfDry6GB/D/Q= 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=209.85.166.207 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-f207.google.com with SMTP id e9e14a558f8ab-4330ba63227so7199895ab.0 for ; Thu, 30 Oct 2025 15:14:28 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1761862468; x=1762467268; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=HjmADPwuhiKknh1al6I//g5+o5h7/YHoGsWoDdA3Xik=; b=eqx0RE6ycYfePaGQgEmVImRW91G3OaVTx5WTSve7pznXvIDzP7MCGB+PwFQwDyEkpY gPMAu1l8EapzpIbGy+eJwoc6zoeZfbwYyVH10PijUUTL4GhgcidxuGoWGtiRCJbtXECU waZAzE2CY3GmV2yVC/ZXNC3VUKJy1CzGK/phXNJS4FzeBCVKduGvBQF03Z9fgWq7T3SD p8gi1d3rjapC9+AH8Rh6Af5vGCZ3dCF+Ns2W0HQVngWsJ7HGgoeQ/wtW7BrVdO8QuxH2 RV1IS1AalON9WVdkdGn1JKzYNsu+w6WSYAL9f0CKE/Scy0R0MebqMhFLX+vBGG4hhlY0 DHyg== X-Forwarded-Encrypted: i=1; AJvYcCUKypxSEqU/Jii9w1T0bZ2VqWib0AzllF7KbrpWLIKsVBbMOl+uqavWcfDkNXuKtgG7fRDpIx4=@vger.kernel.org X-Gm-Message-State: AOJu0YzD/dkgY+ZpPSK2tvi+8dS+vWeknw4v3YOOjp3USachZ2MNdQVB w415LqmSpH0JmHT3CWS3NIHbxdyEuPXowRM6OJgAuKQs42MOYjCu8itki3kj4D7jBdo0VEzdHFU ZwPOBWJTJIz2gW3e75G+nm20+JCSM0v5vpT+G64G8oq8d1VE81X3gQeOxUOw= X-Google-Smtp-Source: AGHT+IGAQ2hv/3RdL9/kZOY1zexofp89sFzf/nb96X1J0QOY8Q6zTb5XyloQXj89LQY1BlLeIVqIvTewXF86vR9c7m43HfKNRZYV Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1aab:b0:42f:a4d7:ebac with SMTP id e9e14a558f8ab-4330bd94293mr25707765ab.4.1761862468057; Thu, 30 Oct 2025 15:14:28 -0700 (PDT) Date: Thu, 30 Oct 2025 15:14:28 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6903e344.050a0220.32483.022d.GAE@google.com> Subject: [syzbot] [net?] BUG: corrupted list in team_priority_option_set (6) From: syzbot To: andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, 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: dcb6fa37fd7b Linux 6.18-rc3 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1596ac92580000 kernel config: https://syzkaller.appspot.com/x/.config?x=609c87dcb0628493 dashboard link: https://syzkaller.appspot.com/bug?extid=422806e5f4cce722a71f compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-dcb6fa37.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/61176fd888a1/vmlinux-dcb6fa37.xz kernel image: https://storage.googleapis.com/syzbot-assets/84e7e9924c22/bzImage-dcb6fa37.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+422806e5f4cce722a71f@syzkaller.appspotmail.com futex_wake_op: syz.0.2928 tries to shift op by -1; fix this program non-paged memory list_del corruption, ffff888058bea080->prev is LIST_POISON2 (dead000000000122) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:59! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 3 UID: 0 PID: 21246 Comm: syz.0.2928 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__list_del_entry_valid_or_report+0x13e/0x200 lib/list_debug.c:59 Code: 48 c7 c7 e0 71 f0 8b e8 30 08 ef fc 90 0f 0b 48 89 ef e8 a5 02 55 fd 48 89 ea 48 89 de 48 c7 c7 40 72 f0 8b e8 13 08 ef fc 90 <0f> 0b 48 89 ef e8 88 02 55 fd 48 89 ea 48 b8 00 00 00 00 00 fc ff RSP: 0018:ffffc9000d49f370 EFLAGS: 00010286 RAX: 000000000000004e RBX: ffff888058bea080 RCX: ffffc9002817d000 RDX: 0000000000000000 RSI: ffffffff819becc6 RDI: 0000000000000005 RBP: dead000000000122 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000001 R12: ffff888039e9c230 R13: ffff888058bea088 R14: ffff888058bea080 R15: ffff888055461480 FS: 00007fbbcfe6f6c0(0000) GS:ffff8880d6d0a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c3afcb0 CR3: 00000000382c7000 CR4: 0000000000352ef0 Call Trace: __list_del_entry_valid include/linux/list.h:132 [inline] __list_del_entry include/linux/list.h:223 [inline] list_del_rcu include/linux/rculist.h:178 [inline] __team_queue_override_port_del drivers/net/team/team_core.c:826 [inline] __team_queue_override_port_del drivers/net/team/team_core.c:821 [inline] team_queue_override_port_prio_changed drivers/net/team/team_core.c:883 [inline] team_priority_option_set+0x171/0x2f0 drivers/net/team/team_core.c:1534 team_option_set drivers/net/team/team_core.c:376 [inline] team_nl_options_set_doit+0x8ae/0xe60 drivers/net/team/team_core.c:2653 genl_family_rcv_msg_doit+0x209/0x2f0 net/netlink/genetlink.c:1115 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0x55c/0x800 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x158/0x420 net/netlink/af_netlink.c:2552 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline] netlink_unicast+0x5aa/0x870 net/netlink/af_netlink.c:1346 netlink_sendmsg+0x8c8/0xdd0 net/netlink/af_netlink.c:1896 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg net/socket.c:742 [inline] ____sys_sendmsg+0xa98/0xc70 net/socket.c:2630 ___sys_sendmsg+0x134/0x1d0 net/socket.c:2684 __sys_sendmsg+0x16d/0x220 net/socket.c:2716 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fbbcef8efc9 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:00007fbbcfe6f038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fbbcf1e5fa0 RCX: 00007fbbcef8efc9 RDX: 0000000000040000 RSI: 0000200000000200 RDI: 0000000000000004 RBP: 00007fbbcf011f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fbbcf1e6038 R14: 00007fbbcf1e5fa0 R15: 00007fffa3594408 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid_or_report+0x13e/0x200 lib/list_debug.c:59 Code: 48 c7 c7 e0 71 f0 8b e8 30 08 ef fc 90 0f 0b 48 89 ef e8 a5 02 55 fd 48 89 ea 48 89 de 48 c7 c7 40 72 f0 8b e8 13 08 ef fc 90 <0f> 0b 48 89 ef e8 88 02 55 fd 48 89 ea 48 b8 00 00 00 00 00 fc ff RSP: 0018:ffffc9000d49f370 EFLAGS: 00010286 RAX: 000000000000004e RBX: ffff888058bea080 RCX: ffffc9002817d000 RDX: 0000000000000000 RSI: ffffffff819becc6 RDI: 0000000000000005 RBP: dead000000000122 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000001 R12: ffff888039e9c230 R13: ffff888058bea088 R14: ffff888058bea080 R15: ffff888055461480 FS: 00007fbbcfe6f6c0(0000) GS:ffff8880d6a0a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffcb8535e5c CR3: 00000000382c7000 CR4: 0000000000352ef0 --- 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