From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f70.google.com (mail-oo1-f70.google.com [209.85.161.70]) (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 2E135274B46 for ; Fri, 27 Feb 2026 01:43:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772156604; cv=none; b=H04N43fcmzy40FtT6iLK8LHhasTIoUoRSGDYM2JVHvYHj0lHYSuh90hG62tlTyrxCBD3OX6ViR0gK0fDCPeMbIbrZmsD/zmD/1QUh1vmJxolBikzIQTWTaTSRLoblpBP/IYMClczghvDl82itdyd5rsFTML6z26bSp25dyzxIFc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772156604; c=relaxed/simple; bh=VWFtlgXmcL9/fmReO0c8ZlT3Ha+3uO+QpINtRuqmwiE=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=uXmuBZ83RQjsS5MZt6Sr3evDSKl61x4cXfws5e1qt9mpxNCHPblPjLLgxLb577WAzBpLtTcW7yduli2hSMJriwb57uI9bakCVwLX3JjHxdwQvxy006SzNe9MxJcCPiooA6kfOX5g2e/dLzY7KTYMRYb/rBUNQTBg85gx9+o880g= 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=209.85.161.70 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-f70.google.com with SMTP id 006d021491bc7-672c40f3873so31259012eaf.2 for ; Thu, 26 Feb 2026 17:43:23 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1772156602; x=1772761402; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=B+fVH48wga1eGVIKc9mH7KKYUjMOFbW8GCD23h+C4Vk=; b=qX47JXhxVdIqUygjT2ho+7cnHiO7jP2Dt6nIIZuvNf3I0h7gm7ykGfXO5GDfTvvTrT 16E+Tl3V9sUuCmhfrK8QJSjeSFoUdyYLI3bDFLWXicwSaYGX312VYLbd5INungEgvhb+ hYpJ6djsIvXfpn8MP4F3AoFLz4rroFlWgwkxV6s5sh7DjFx2ZyeAxiimdGzkK4IsgKeL Hud8Fth8/X+av+fFIN2Xdk5Wjby1BEg+Sb9TDum4L4Vbu+v0Eu6Y9zLUnacqcD7ZHXnQ wmfWB4A4OrT24AkNbQkK+ZjqnvBV7gpkHXg7Ofofz6JDVtbxp/6l7P4VC4NdBXRepe8W Z+mw== X-Forwarded-Encrypted: i=1; AJvYcCVQhcWHdXlj0to8Nl79aqdDy01IZiBxIIdwwYtYiF8d1nOSxiKr4mYFXvXg/TQyL3EMzw7i0gM=@vger.kernel.org X-Gm-Message-State: AOJu0Yw8pemJJtyCGQClgn5YbpTqHXgOvz08LOQSdd5VE337cPPD2uMS DiVlEjRWYFzfdwWJKrFjeiw/tGSa3TaikghLKjFNB7tbbpzZWDm8Znulr3Q8Z/XseUHTaq2+rfG /iBNaj+RHgGNBKgggEIQnshcmONYMxlc82sEPP5ouDtnPYoy7YRw14G0Ai0s= Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:2299:b0:674:62e7:190f with SMTP id 006d021491bc7-679fadf3c5bmr853461eaf.17.1772156602218; Thu, 26 Feb 2026 17:43:22 -0800 (PST) Date: Thu, 26 Feb 2026 17:43:22 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69a0f6ba.050a0220.305b49.0074.GAE@google.com> Subject: [syzbot] [wireless?] WARNING in ieee80211_set_disassoc (2) From: syzbot To: johannes@sipsolutions.net, 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: 189f164e573e Convert remaining multi-line kmalloc_obj/flex.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1750855a580000 kernel config: https://syzkaller.appspot.com/x/.config?x=2208a171312e89b7 dashboard link: https://syzkaller.appspot.com/bug?extid=4b737df95e84787fec21 compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8 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-189f164e.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/669b52dbab53/vmlinux-189f164e.xz kernel image: https://storage.googleapis.com/syzbot-assets/51b76feb584c/bzImage-189f164e.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+4b737df95e84787fec21@syzkaller.appspotmail.com mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium wlan1: deauthenticating from 08:02:11:00:00:00 by local choice (Reason: 3=DEAUTH_LEAVING) ------------[ cut here ]------------ !ap_sta WARNING: net/mac80211/mlme.c:4137 at ieee80211_set_disassoc+0x3c8/0x1a90 net/mac80211/mlme.c:4137, CPU#0: syz.0.0/5315 Modules linked in: CPU: 0 UID: 0 PID: 5315 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:ieee80211_set_disassoc+0x3c8/0x1a90 net/mac80211/mlme.c:4137 Code: c4 8c f6 45 85 ff 0f 84 c9 11 00 00 e8 81 c0 8c f6 eb 2b e8 7a c0 8c f6 48 83 7c 24 48 00 0f 85 38 fe ff ff e8 69 c0 8c f6 90 <0f> 0b 90 e9 aa 10 00 00 e8 5b c0 8c f6 eb 05 e8 54 c0 8c f6 48 8d RSP: 0018:ffffc9000dd4efa0 EFLAGS: 00010287 RAX: ffffffff8b38dab7 RBX: ffff888038b28dc0 RCX: 0000000000100000 RDX: ffffc9000ec12000 RSI: 000000000001762f RDI: 0000000000017630 RBP: ffffc9000dd4f0b0 R08: 0000000000000001 R09: 0000000000000000 R10: ffffc9000dd4f1e0 R11: fffff52001ba9e3f R12: ffff888038b297f0 R13: dffffc0000000000 R14: 1ffff92001ba9e04 R15: ffffc9000dd4f1e0 FS: 00007f5691c2d6c0(0000) GS:ffff88808ca5b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc7ffad0c8 CR3: 0000000035dd8000 CR4: 0000000000352ef0 Call Trace: ieee80211_mgd_deauth+0x9fa/0xe60 net/mac80211/mlme.c:10198 rdev_deauth net/wireless/rdev-ops.h:509 [inline] cfg80211_mlme_deauth+0x51b/0x8f0 net/wireless/mlme.c:536 cfg80211_sme_disconnect net/wireless/sme.c:666 [inline] cfg80211_disconnect+0x3b2/0x7c0 net/wireless/sme.c:1559 cfg80211_netdev_notifier_call+0x1ba/0x1470 net/wireless/core.c:1599 notifier_call_chain+0x1be/0x400 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2287 [inline] call_netdevice_notifiers net/core/dev.c:2301 [inline] __dev_close_many+0x119/0x6d0 net/core/dev.c:1746 netif_close_many+0x225/0x420 net/core/dev.c:1800 netif_close+0x160/0x220 net/core/dev.c:1817 dev_close+0x10a/0x220 net/core/dev_api.c:220 cfg80211_shutdown_all_interfaces+0xc4/0x200 net/wireless/core.c:282 cfg80211_rfkill_set_block+0x2d/0x50 net/wireless/core.c:312 rfkill_set_block+0x1d2/0x440 net/rfkill/core.c:346 rfkill_fop_write+0x461/0x5a0 net/rfkill/core.c:1301 vfs_write+0x29a/0xb90 fs/read_write.c:686 ksys_write+0x150/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5690d9c629 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:00007f5691c2d028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f5691015fa0 RCX: 00007f5690d9c629 RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000006 RBP: 00007f5690e32b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f5691016038 R14: 00007f5691015fa0 R15: 00007fff6e9cd5a8 --- 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