From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo2-f7.google.com (mail-oo2-f7.google.com [74.125.231.135]) (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 0C61A414A20 for ; Mon, 14 Sep 2026 09:57:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.231.135 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789379859; cv=none; b=u140vUfNXCppBCz5g3vjsbmRvqHVFz4lWcE59iaqPy29oDKBKK92q7TwGxU1yoVCME4sk/BOgWkF2+AM01TWB4F+ZGHSLTocKR1lVi4q/KrDOWYLQK9HP0Y7Be1fHjaUSDW8vuEKBxBmI0T0o3T1fJcIw+ygYHsPcGhBGbZ7HII= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789379859; c=relaxed/simple; bh=3qiAnH7OuYwzpG0yK4SgScObKktr+6Jrd70bQk5EbQw=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=o/q1OgDU6BDYh2w27atpnIeqluB2U0/rfsaMhAsNwV99BrXRnUGbcfGboY57zKs6z3CNFfbjakHgbfhGdC7DN974L0WAWXg4WVjhqemKLhzRfiHfT/bpqpUt/uguIcQ/mGcb+frdXMliy485IJaQntngSqL3Gcg8vB9I0yK0mD0= 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=74.125.231.135 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-oo2-f7.google.com with SMTP id 006d021491bc7-6b1bebb3ae8so1274849eaf.1 for ; Mon, 14 Sep 2026 02:57:37 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1789379857; x=1789984657; h=content-type:to:from:subject:message-id:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=W6oIk7l4eRnUyhdSeBU9s1lynDeZBJ7umO0EhfBWYFk=; b=Xe3iPld8r7sYXwYIaz5N67Imf4cPr1fZe7ZWoKHNfZW6O5dTbnlKlbiRjPp9oWZG4X KHcUkQxRKMyazUOEvg0wRG3ftj2/UVSXd5bAXfk/4CkZ59t2xcNUUXLGiMOXDc0EHWzv CGOxA9VswhLEUVarEAZDzSj1cbYG9kMpp0qJiBPQ9jt7stlCBILeioOXr+LvbXydJfDW Zt+gzzBTd9AztGa+5dRi6gAeiX+7CItUJAIxAcfywNSzOuTb5Wm65/sV9wwS4C+bqeGC wFQP/j+3KivNB+G9qtt0RV4iSRjTrIJnW78rmIWI22e8itLbwznMhJQcGyZ8dlgfOCcI /5mw== X-Forwarded-Encrypted: i=1; AKwUvBzLEVLaLZvjznAtWzVmXvnK1mQrLVv4WvsQtJt0L4gO+PHW0IZ8ei0BqujWa1PUllhKdh57Ti7KprHSJJ4=@vger.kernel.org X-Gm-Message-State: AFuF++l3ZPL71PmQgFtbfHhPYw+oIqoIHxZ9w5FbsvlUU3X1mGm6/APz YH9A2oghuZHJmZTL1NEhRzLEXGcimeV0vYqPnqLK3KiGn/fK/q1X7ri84Ug0A2Z1KpOeUkQ4Pqi GX8jaNkOEznrKLIxPxihc5ePuRjS82bQoDEINyrn+QJTG4HJ0Wjosw7MOpuc= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:1988:b0:6c1:fd93:5292 with SMTP id 006d021491bc7-6c541d3ff08mr1639726eaf.17.1789379856953; Mon, 14 Sep 2026 02:57:36 -0700 (PDT) Date: Mon, 14 Sep 2026 02:57:36 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6aa7c510.4c28b7d0.c1bba.0017.GAE@google.com> Subject: [syzbot] [wpan?] WARNING in hwsim_hw_xmit From: syzbot To: alex.aring@gmail.com, andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-wpan@vger.kernel.org, miquel.raynal@bootlin.com, netdev@vger.kernel.org, pabeni@redhat.com, stefan@datenfreihafen.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: fd73f4a66598 Linux 7.3-rc3 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=15319905580000 kernel config: https://syzkaller.appspot.com/x/.config?x=b454dc6b1b7acd30 dashboard link: https://syzkaller.appspot.com/bug?extid=adb0bf16414b8bb2d799 compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/03bdb0f533e9/disk-fd73f4a6.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/b8afef97d54e/vmlinux-fd73f4a6.xz kernel image: https://storage.googleapis.com/syzbot-assets/c5ec38325318/bzImage-fd73f4a6.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+adb0bf16414b8bb2d799@syzkaller.appspotmail.com ------------[ cut here ]------------ current_phy->suspended WARNING: drivers/net/ieee802154/mac802154_hwsim.c:266 at hwsim_hw_xmit+0x1606/0x1630 drivers/net/ieee802154/mac802154_hwsim.c:266, CPU#0: syz.5.2158/11621 Modules linked in: CPU: 0 UID: 0 PID: 11621 Comm: syz.5.2158 Tainted: G L syzkaller #0 PREEMPT_{RT,(full)} Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 RIP: 0010:hwsim_hw_xmit+0x1606/0x1630 drivers/net/ieee802154/mac802154_hwsim.c:266 Code: c6 05 af 7a e6 08 01 48 c7 c7 a0 ae 0c 8c be 0d 01 00 00 48 c7 c2 40 af 0c 8c e8 15 fe ec fa e9 e8 eb ff ff e8 4b 78 11 fb 90 <0f> 0b 90 e9 d2 ea ff ff 89 d9 80 e1 07 38 c1 0f 8c b7 ea ff ff 48 RSP: 0018:ffffc90004a07280 EFLAGS: 00010283 RAX: ffffffff86b51de5 RBX: ffff88802592d018 RCX: 0000000000080000 RDX: ffffc9001660b000 RSI: 00000000000001b2 RDI: 00000000000001b3 RBP: ffffc90004a073f8 R08: ffff88802592c823 R09: 1ffff11004b25904 R10: dffffc0000000000 R11: ffffffff86b507e0 R12: dffffc0000000000 R13: ffff88802592c900 R14: ffff88802592cf80 R15: 1ffff11004b25920 FS: 00007f56c49766c0(0000) GS:ffff888125bcb000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d91fff8 CR3: 000000004052a000 CR4: 00000000003526f0 Call Trace: drv_xmit_async net/mac802154/driver-ops.h:16 [inline] ieee802154_tx+0x26d/0x510 net/mac802154/tx.c:89 ieee802154_hot_tx net/mac802154/tx.c:207 [inline] ieee802154_subif_start_xmit+0x110/0x190 net/mac802154/tx.c:239 __netdev_start_xmit include/linux/netdevice.h:5429 [inline] netdev_start_xmit include/linux/netdevice.h:5438 [inline] xmit_one net/core/dev.c:3937 [inline] dev_hard_start_xmit+0x2df/0x870 net/core/dev.c:3953 sch_direct_xmit+0x257/0x4c0 net/sched/sch_generic.c:372 __dev_xmit_skb net/core/dev.c:4262 [inline] __dev_queue_xmit+0x16ce/0x3880 net/core/dev.c:4884 dev_queue_xmit include/linux/netdevice.h:3461 [inline] raw_sendmsg+0x4a2/0x9c0 net/ieee802154/socket.c:299 sock_sendmsg_nosec+0x13a/0x180 net/socket.c:800 __sock_sendmsg net/socket.c:815 [inline] ____sys_sendmsg+0x565/0x870 net/socket.c:2713 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2767 __sys_sendmsg net/socket.c:2799 [inline] __do_sys_sendmsg net/socket.c:2804 [inline] __se_sys_sendmsg net/socket.c:2802 [inline] __x64_sys_sendmsg+0x1b7/0x290 net/socket.c:2802 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f56c671e159 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f56c4976028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f56c69a5fa0 RCX: 00007f56c671e159 RDX: 0000000024004014 RSI: 0000200000000080 RDI: 0000000000000005 RBP: 00007f56c67b503b R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f56c69a6038 R14: 00007f56c69a5fa0 R15: 00007ffd99396d38 --- 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