From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f77.google.com (mail-oo1-f77.google.com [209.85.161.77]) (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 52C3B3986E8 for ; Wed, 7 Jan 2026 17:34:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.77 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767807270; cv=none; b=uH1DNrUbCAujzz7VYK2o0qVMuaU8YVLqiwEZPHLThjXPspVZijU/RA7TOen+CeiekveOhziJp1lWSxQISJ3XE/nRxIeRUSWlCNGCnQlPIKPJUZta8acOdGZectjBgUIVFuogfJgVmqVZd7JALmvGnTMHyifieBbLg2S80ZWDCv8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767807270; c=relaxed/simple; bh=5U1R4ljm+W2Izg/oglsYWbCr8DPRgdEq+bghHYPYKOo=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=cdQhvDrUOp2197Oj2kQfftWAM4OQN3HJiv3K2jM4cn+cN2vMDItQXAJCUunz9IUsY4NTp2JNmlWGjBNW1h2DGmoeUIoFbbTSjEicr0NnhpKUku1sXCf3YxfG64HT055SnZlglHaHQQXUJwqbsvZFWdcY/Kzs89OrEPHhOxzSynk= 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=209.85.161.77 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-oo1-f77.google.com with SMTP id 006d021491bc7-65ed4d39a1bso7234988eaf.2 for ; Wed, 07 Jan 2026 09:34:29 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1767807268; x=1768412068; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=B2PYel2T5pfRZieI9Ikpf9k9MeQfExr2YEBU6Ig4pDY=; b=bsc+/cq7qVPYTsiOjleWD2N2Od98Xz3Y0N72qxVeas1xoIVkiTQmS5b6xMCSOiD2la BS/fKNEmMepv78Y/dznZzb7bW/pYl/3WHJt9v3mhWBPNXhFVCb1QcU3TirDo+zV4xjzi EXIFb5virXnoPtI7a89/VOvcdM7Xv1L8EEvBrOQpIGFUuYC15K83sb5ia9zCrR+kq5gX 7860HyL+57NDcUn+BKhQ3jhy2ElGnf1xtH6FKbHNIPPuXjvAxZnP5CYPc/2jxtj3/NAE sfMcHfyVwCmYJRfeuDGvXeiKN9ZfOYltooI0z5lInDMdvzkPv1YYtZAvNuzU0JeovRNn AldQ== X-Forwarded-Encrypted: i=1; AJvYcCXS5vGfEx/psFp/IepY1/YUDGV7Y4I1ccCjrs112gQRAmGERHTle74ESCKr2zh87qA79eRYqbM=@vger.kernel.org X-Gm-Message-State: AOJu0Yz4Fy8rOrk2dbCNHQVxSgKMDORG9pslTMShYBYepI9I1HMke6CB EP+vSZro4Rc088r/zDRL4+2rxjIZaFroURPwyhklkC+02NgkEVtfi3ter+9T4ywqSA1TahXjXv9 XblBSYEJDPJwnbR1hTc8jqDE5AwhHeUHrSwFUsptkiDqRYfSatdUETu7owUo= X-Google-Smtp-Source: AGHT+IEvbirL/hcDClvaNWS9E2YR9mYvyih3qxygmz33zoYwgC4KNsxzOEs9f+P8oN9uGiWUy2XEHmVaENeSQdofantqDPgl4BZV Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:f002:b0:65d:318:df67 with SMTP id 006d021491bc7-65f55082728mr1367976eaf.70.1767807268209; Wed, 07 Jan 2026 09:34:28 -0800 (PST) Date: Wed, 07 Jan 2026 09:34:28 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <695e9924.050a0220.1c677c.0371.GAE@google.com> Subject: [syzbot] [netfilter?] WARNING in nf_hook_entry_head (2) From: syzbot To: coreteam@netfilter.org, davem@davemloft.net, edumazet@google.com, fw@strlen.de, horms@kernel.org, kadlec@netfilter.org, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, pabeni@redhat.com, pablo@netfilter.org, phil@nwl.cc, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: b69053dd3ffb wifi: mt76: Remove blank line after mt792x fi.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=134dca9a580000 kernel config: https://syzkaller.appspot.com/x/.config?x=a94030c847137a18 dashboard link: https://syzkaller.appspot.com/bug?extid=6f6a1d20567a8d6b2a58 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/18036fd3b399/disk-b69053dd.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/bcf4c5ec9d8e/vmlinux-b69053dd.xz kernel image: https://storage.googleapis.com/syzbot-assets/b4101a9d1eed/bzImage-b69053dd.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+6f6a1d20567a8d6b2a58@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: net/netfilter/core.c:329 at nf_hook_entry_head+0x23e/0x2c0 net/netfilter/core.c:329, CPU#0: kworker/u8:13/4537 Modules linked in: CPU: 0 UID: 0 PID: 4537 Comm: kworker/u8:13 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Workqueue: netns cleanup_net RIP: 0010:nf_hook_entry_head+0x23e/0x2c0 net/netfilter/core.c:329 Code: 4c 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 4c 89 ff e8 5d 76 a7 f8 4d 39 37 74 36 e8 23 56 41 f8 90 <0f> 0b 90 31 db 48 89 d8 5b 41 5e 41 5f 5d e9 5a 9f 90 f7 cc e8 09 RSP: 0018:ffffc9000d997788 EFLAGS: 00010293 RAX: ffffffff897fa15b RBX: ffff888024f18000 RCX: ffff888033515b80 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff888033515b80 R09: 0000000000000006 R10: 000000000000000a R11: 0000000000000000 R12: ffff8880555f8000 R13: 0000000000000005 R14: ffff8880555f8000 R15: ffff888024f18108 FS: 0000000000000000(0000) GS:ffff888125e1f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2fa18ff8 CR3: 00000000ac7e4000 CR4: 0000000000350ef0 Call Trace: __nf_unregister_net_hook+0x74/0x6f0 net/netfilter/core.c:491 nft_unregister_flowtable_ops net/netfilter/nf_tables_api.c:9038 [inline] __nft_unregister_flowtable_net_hooks net/netfilter/nf_tables_api.c:9053 [inline] __nft_release_hook+0x180/0x350 net/netfilter/nf_tables_api.c:12035 __nft_release_hooks net/netfilter/nf_tables_api.c:12049 [inline] nf_tables_pre_exit_net+0xa7/0x110 net/netfilter/nf_tables_api.c:12200 ops_pre_exit_list net/core/net_namespace.c:161 [inline] ops_undo_list+0x187/0x990 net/core/net_namespace.c:234 cleanup_net+0x4d8/0x7a0 net/core/net_namespace.c:696 process_one_work kernel/workqueue.c:3257 [inline] process_scheduled_works+0xad1/0x1770 kernel/workqueue.c:3340 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3421 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 --- 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