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 569691FC7E3 for ; Tue, 17 Dec 2024 17:48:22 +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=1734457704; cv=none; b=qqVs/3qvSTFpA/QG8iQ6FITYoF7dbMT+syJjBSf0nDcPjuCI1rIxvky0A0Yyip64wCTH4lEZhRi4eftrhleze+SO/QlO7mVps5vOX4yK3dlxeOHREgq3TzCycTIkt2nOAiCtM720D5MukE8FrDX4uKUN8Cxi5tO19MYr2IOQEC8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734457704; c=relaxed/simple; bh=cCOulBrxMtTYqZ2UiLo7/vUTZR3wTcaNP9GlZI4ZKxY=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=KToPWKzD6gah1hEmV1z7CDaq7Mc19Uuklfc8wTcYzfCpAjrCsRfOmsQP9LfEQFNkNnM3+Ro4ue3cLNc8aAm5NdlMYQMp/KQ93uXtr4bQuHyZO6k78djsWWww74VeUNG2EUgm7KkrSBxJCjwijWwv51Rl6sM7LR/cEYpOKHdLvfo= 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-3a814c7d58eso53454745ab.1 for ; Tue, 17 Dec 2024 09:48:22 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1734457701; x=1735062501; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=Cm3NviY1/Xhe2vIwXw/oIGBuY1ITFav/N10nmHzyjys=; b=Iopcet+6JqZwWhhlGkmmLgTHtqxdBJGWY0HRj48/J3sIUsWudjxu17bBLvx0b3yMA4 C1ZnBsGp6O4wddW50vlZWKCwsNC26Hm5EZCdBQN5WIfGaeSgBScXmmlTBlgzbEo6lmny +oqnlsQY/uOTvZTerpAqTs+N0mqOSKP31S5eFUTHFAqsvpEpTZ1Cbn3WZvXalQY2dQ/2 ZtmACBx/gMjq07IoAknWDo2O6Jy8CfrKVmLx0FDh07rTqhy22Iqx0oAr3WHPtk6E1Lll W8b6cKMbtNCoglWt4DAVqz5f7sD0InMfOE76qpc3vl8glo1TsJaUSYGFLGMxEnNv5dtk 8S6Q== X-Forwarded-Encrypted: i=1; AJvYcCU9fl5/sMXnGIC6JVsHhLBJAlmw0kfIUKnz9si21tiRv9ua40UiJIeMu9FD0P4uaNxeKH7fskA=@vger.kernel.org X-Gm-Message-State: AOJu0YzLkF4wfR/YopcMHymTPiDlkD+bHTBGaFjMRRDH7hI/jIcyEJHM 5bzXarXWd6/2lSXpwsI/rTuQwITprZsNv2zAGDVnSE8shdOVe17ZNnb32Xf0c3bMjw7ZePGx5tv JU3aDZtBJgg01RPjRpe4nUXUS7shg+XKQMdYUxc6iKK+H1W/6Aw/6iHw= X-Google-Smtp-Source: AGHT+IGWFX50yNkK+5g5ZsFwdtBDRCOH5RLKE3W+W9I1B9ffC4LSFgsrkozFJlqM66tTyGD6EWzc+52XRiPIV26o/4YAdiF+3FDH Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:16c5:b0:3a7:c5ff:e698 with SMTP id e9e14a558f8ab-3bd803baa26mr4822865ab.0.1734457701638; Tue, 17 Dec 2024 09:48:21 -0800 (PST) Date: Tue, 17 Dec 2024 09:48:21 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6761b965.050a0220.29fcd0.0072.GAE@google.com> Subject: [syzbot] [wireless?] WARNING in mac80211_hwsim_tx From: syzbot To: johannes@sipsolutions.net, kvalo@kernel.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 429fde2d81bc net: tun: fix tun_napi_alloc_frags() git tree: net console output: https://syzkaller.appspot.com/x/log.txt?x=1017da0f980000 kernel config: https://syzkaller.appspot.com/x/.config?x=fee25f93665c89ac dashboard link: https://syzkaller.appspot.com/bug?extid=433ee38d8684adcfbeb9 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/34e1be018333/disk-429fde2d.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/ec564480cb6e/vmlinux-429fde2d.xz kernel image: https://storage.googleapis.com/syzbot-assets/7d9902c93ef5/bzImage-429fde2d.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+433ee38d8684adcfbeb9@syzkaller.appspotmail.com ------------[ cut here ]------------ Invalid VIF (ffff88807e14e9d0) magic 0x0, 08:02:11:00:00:01, 3/1 WARNING: CPU: 0 PID: 5908 at drivers/net/wireless/virtual/mac80211_hwsim.c:237 hwsim_check_magic drivers/net/wireless/virtual/mac80211_hwsim.c:235 [inline] WARNING: CPU: 0 PID: 5908 at drivers/net/wireless/virtual/mac80211_hwsim.c:237 mac80211_hwsim_tx+0x1b6f/0x23c0 drivers/net/wireless/virtual/mac80211_hwsim.c:2026 Modules linked in: CPU: 0 UID: 0 PID: 5908 Comm: kworker/0:6 Not tainted 6.13.0-rc2-syzkaller-00131-g429fde2d81bc #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 Workqueue: mld mld_ifc_work RIP: 0010:hwsim_check_magic drivers/net/wireless/virtual/mac80211_hwsim.c:235 [inline] RIP: 0010:mac80211_hwsim_tx+0x1b6f/0x23c0 drivers/net/wireless/virtual/mac80211_hwsim.c:2026 Code: 28 84 c0 0f 85 06 08 00 00 45 0f b6 8e 61 04 00 00 48 c7 c7 40 2a a9 8c 4c 89 f6 44 89 e2 48 89 e9 41 89 d8 e8 52 e7 50 fa 90 <0f> 0b 90 90 e9 69 f2 ff ff e8 d3 3d 90 fa 90 0f 0b 90 e9 d5 f2 ff RSP: 0018:ffffc9000479ebf0 EFLAGS: 00010246 RAX: 8672fc10cd8df200 RBX: 0000000000000003 RCX: ffff888031a21e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff88807e14ee2a R08: ffffffff81600a42 R09: fffffbfff1cfa210 R10: dffffc0000000000 R11: fffffbfff1cfa210 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff88807e14e9d0 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f48a26a56c0 CR3: 0000000061e5a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: drv_tx net/mac80211/driver-ops.h:37 [inline] wake_tx_push_queue net/mac80211/util.c:298 [inline] ieee80211_handle_wake_tx_queue+0x1ae/0x2d0 net/mac80211/util.c:315 drv_wake_tx_queue net/mac80211/driver-ops.h:1362 [inline] schedule_and_wake_txq net/mac80211/driver-ops.h:1369 [inline] ieee80211_queue_skb+0x1ae9/0x24b0 net/mac80211/tx.c:1664 ieee80211_tx+0x2c4/0x470 net/mac80211/tx.c:1967 __ieee80211_subif_start_xmit+0xe93/0x1600 net/mac80211/tx.c:4339 ieee80211_subif_start_xmit+0xde/0x4d0 net/mac80211/tx.c:4533 __netdev_start_xmit include/linux/netdevice.h:5002 [inline] netdev_start_xmit include/linux/netdevice.h:5011 [inline] xmit_one net/core/dev.c:3590 [inline] dev_hard_start_xmit+0x27a/0x7d0 net/core/dev.c:3606 __dev_queue_xmit+0x1b73/0x3f50 net/core/dev.c:4434 neigh_output include/net/neighbour.h:539 [inline] ip6_finish_output2+0x12c7/0x17b0 net/ipv6/ip6_output.c:141 ip6_finish_output+0x41e/0x840 net/ipv6/ip6_output.c:226 NF_HOOK+0x9e/0x430 include/linux/netfilter.h:314 mld_sendpack+0x843/0xdb0 net/ipv6/mcast.c:1819 mld_send_cr net/ipv6/mcast.c:2120 [inline] mld_ifc_work+0x7d9/0xd90 net/ipv6/mcast.c:2651 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 --- 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