From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oa1-f79.google.com (mail-oa1-f79.google.com [209.85.160.79]) (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 897E538FA3 for ; Sun, 29 Mar 2026 04:32:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.79 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774758750; cv=none; b=n1ABp10FFaQudYrhaKlu6jkKJ3jG0HlMw6XRAJzejGbhHeQzLczDV9vXiJ9g75eRMiLywy8zFpZqXnKAb1YGxFNRh8vdfq4ApXUprgql+br839iQDkGT0VeTnKFTA27GH6vZRQpOka0wJMp8+6DIcpAhweWRhXkTgtrt3u9xRZM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774758750; c=relaxed/simple; bh=eRRRb2N3ymTRMe23xvRvuPxbpsHO4mJ2zs/SOfgFzow=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=f75k1HPdCSAuk7u5lPAYL0soMVWl9A+EQDslREgCBhlyN7kvoMaXEW66hwSLEh0Y8nsJ6i2l15xJE5NMhtZFjutLArBnWN6ujw3brceqZSqgsWgCe2Okov9RE5Y1Jj7uVN5j6XmHInBvn37D8FvbpMkEZnTIhCBNpFfYVrqRIjs= 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=209.85.160.79 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-oa1-f79.google.com with SMTP id 586e51a60fabf-41702ea8343so6304820fac.0 for ; Sat, 28 Mar 2026 21:32:29 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1774758748; x=1775363548; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=MEoAnAURmycMeJhLBjjMu7mW85fSmjHXh//VW9K2psM=; b=ZeRuF5wtwe19yMEAbZRt4RCT5zFRpsDmrq+S6IycUpcM/1VkiG0hAUJ5gOl0K2BPkY aGogKUV3TawCZoDuA1v4wpAFmqCeUMitb0F6UZ98qo4hz1KW0ppI8wwrjPo+tVpDZX+q Odokso6FMtPbDnSPc2eeFH8oDZUxnTHJ7Mo2cPM8bC6O//7GH9RRGLiDqxNoQrPLAhCo 94EmNSIo1hqqkloP7hZc3kDQHn2sdVazAkUPHGR31xe9MRlTbnh2sPEInjpLJb5aVNMd wk4qUmnc3lsPIA5trX3o7IqgMfMKU2gjpwCD3r9gLrafCVvy6rSfOyOasAy1vplVvm5k 1wkA== X-Forwarded-Encrypted: i=1; AJvYcCWqBP1k5qjR3LPQO1Nd9lOnGLnB4aPWoEO7xW6VWLj+W+cXjHEsXLPPiZ4O6N2pbgn/LDNFhz8=@vger.kernel.org X-Gm-Message-State: AOJu0YyO9gDOjRiPqlvd2PilqvmeglL1If62N71p4hcul9APU5byrRt4 QSEMXkkQsfoXvdudKekQ9+0WN/rQIGZCrYNJxW7herPbwUR/CLMD0sPJW2xHjOJUMxTPWTdi2sE kCCufVIEUQw+WU188TA+IOOTlcnv2VHjIHG34/LysErf6GkzUtgaXwhqUJ5Y= Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:222a:b0:67d:e5f5:2518 with SMTP id 006d021491bc7-67e185f48f9mr4419021eaf.14.1774758748580; Sat, 28 Mar 2026 21:32:28 -0700 (PDT) Date: Sat, 28 Mar 2026 21:32:28 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69c8ab5c.a70a0220.97f31.002c.GAE@google.com> Subject: [syzbot] [wireless?] WARNING in cfg80211_chandef_dfs_required (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: b1c803d5c816 net: airoha: Rework the code flow in airoha_r.. git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=17ad21d6580000 kernel config: https://syzkaller.appspot.com/x/.config?x=71d49d824b43a0d9 dashboard link: https://syzkaller.appspot.com/bug?extid=02a1a03b8622d3c7d1c9 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: https://storage.googleapis.com/syzbot-assets/09cf620a7914/disk-b1c803d5.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/72906e01e665/vmlinux-b1c803d5.xz kernel image: https://storage.googleapis.com/syzbot-assets/e1bab2219b98/bzImage-b1c803d5.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+02a1a03b8622d3c7d1c9@syzkaller.appspotmail.com ------------[ cut here ]------------ !cfg80211_chandef_valid(chandef) WARNING: net/wireless/chan.c:796 at cfg80211_chandef_dfs_required+0xe3e/0xf00 net/wireless/chan.c:796, CPU#0: syz.0.4705/23179 Modules linked in: CPU: 0 UID: 0 PID: 23179 Comm: syz.0.4705 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:cfg80211_chandef_dfs_required+0xe3e/0xf00 net/wireless/chan.c:796 Code: de e8 26 ed bb f6 48 83 fb 3f 0f 87 aa 00 00 00 e8 d7 e8 bb f6 b8 01 00 00 00 89 d9 48 d3 e0 e9 0a f4 ff ff e8 c3 e8 bb f6 90 <0f> 0b 90 b8 ea ff ff ff e9 f7 f3 ff ff e8 10 d9 a5 00 89 d1 80 e1 RSP: 0018:ffffc900039c7680 EFLAGS: 00010283 RAX: ffffffff8b09b83d RBX: 1ffff92000738f10 RCX: 0000000000080000 RDX: ffffc90005477000 RSI: 00000000000005cf RDI: 00000000000005d0 RBP: ffffc900039c7810 R08: ffffffff822422df R09: ffff8880b863f428 R10: dffffc0000000000 R11: ffffed10165f8539 R12: ffffc900039c7a00 R13: dffffc0000000000 R14: 0000000000000006 R15: 1ffff92000738ee8 FS: 00007f6f79eb16c0(0000) GS:ffff888125461000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6f7904eddd CR3: 0000000054d9e000 CR4: 00000000003526f0 Call Trace: _ieee80211_link_use_channel+0x29c/0xd50 net/mac80211/chan.c:2034 ieee80211_link_use_channel net/mac80211/ieee80211_i.h:2754 [inline] ieee80211_set_monitor_channel+0x692/0x8e0 net/mac80211/cfg.c:1084 rdev_set_monitor_channel net/wireless/rdev-ops.h:453 [inline] cfg80211_set_monitor_channel+0x22d/0x650 net/wireless/chan.c:1600 cfg80211_wext_siwfreq+0x730/0x870 net/wireless/wext-compat.c:792 ioctl_standard_call+0xcb/0x1b0 net/wireless/wext-core.c:1042 wireless_process_ioctl net/wireless/wext-core.c:-1 [inline] wext_ioctl_dispatch+0xee/0x410 net/wireless/wext-core.c:1013 wext_handle_ioctl+0x10f/0x1d0 net/wireless/wext-core.c:1074 sock_ioctl+0x159/0x7f0 net/socket.c:1300 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 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: 0033:0x7f6f78f9c799 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:00007f6f79eb1028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f6f79215fa0 RCX: 00007f6f78f9c799 RDX: 0000200000000040 RSI: 0000000000008b04 RDI: 0000000000000003 RBP: 00007f6f79032c99 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f6f79216038 R14: 00007f6f79215fa0 R15: 00007ffe8253b778 --- 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