From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=209.85.167.197 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792978365; b=1Ntjxf44QJLINhfNeVsYwmaACqx3n5BJu9bOKB1gfXyFXIKllxrtg5cJKRFpsdrPoQQw cNCV8QyWRhFbmJIanVTN+Pu+PN78ZHC62Z+lkuXUI6VoTZCL1XzQwSWnzPVoqTC0QnRcG OrIu4nAyTRf/S4XO//da8jhYFItu0fZzofasOXvfnaRUt2cQVQWfhM8rjKCcYIj4XqNeU fakoIL7Y/c8EqtAPUF8gJHhqqBWduj6neqbc/uQDzkkqQjO54yi3twCspNnsbtuw5t1Ji 5tuKYMr1TcYynBBFzyO0euHX3bnUinTYeX7I+0vDI7YsZE4XhnX2g3g71qWkssp644g== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792978365; h=DMARC-Filter:Received:X-Google-DKIM-Signature:X-Forwarded-Encrypted: X-Gm-Message-State:MIME-Version:X-Received:Date: X-Google-Appengine-App-Id:X-Google-Appengine-App-Id-Alias:Message-ID: Subject:From:To:Content-Type; bh=1WrAPJVqztXGeicWZ8YmBuP6dCF2HqU/IaTH6pLRzhE=; b=kR7bgmgJ3tOWrryiPFTKD9MynAcPX/CVr5ebbLbks2rmptztq9sRbfxjwSi7vakIYBIQ ibKNx7DDKQve42dvMia/d1tfTw+u6rH2LvjxlYDsLFR75ExvbKKxHxyMtr8pZV2GYKqk7 IT8iAvcrRBjc8UCesMRiUaL3q/gN7cDO69c9fgseJ7CLVu7iZ6fKQ/sAnRubkGQLCjjN0 ztw3PcDss16vSQD6gdNtgLAah1Z2DyQkypTpRl3c/2U1pNpKoqds0kA4W2g3rGb/VIgNq 9+O9QHHnG7PKkxLANB3jQytBRGfreCE34PjUWsqO5BcCPfwgLPs3oz3F2tLg9pmkj/A== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=fail header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.remote-ip=209.85.167.197 Received: from mail-oi1-f197.google.com (mail-oi1-f197.google.com [209.85.167.197]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 08374606A31A for ; Mon, 26 Oct 2026 01:32:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 08374606A31A 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-oi1-f197.google.com with SMTP id 5614622812f47-4d2f0f77124so3292102b6e.3 for ; Sun, 25 Oct 2026 18:32:44 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1792978364; x=1793583164; 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=1WrAPJVqztXGeicWZ8YmBuP6dCF2HqU/IaTH6pLRzhE=; b=ZxUCuF/EpBs8GOQn+yEIsMMYB/WX40dnVZ0Ezj5q7t25PiPN6lIvrehwDzjNgJaMzI 2X4FRAxDFylfkE5mAsHjmBFjvpbeiPNJGwhGbwCrOp37gbishLtBk7BsIJDC8zkpC3SB FQpPKbK4Odwx2wseotjryx0eBWwlxw4e1cqCIm5LXMrupHVrleURLB8/Dtu81mY7ToWB fbwg7jIKBWE+HxSUHKPiA16espxDeVN13+SH9nfEunnQfDX2pil70mwhV1N2sMeEuD0g KSAScCKHvE9AlPsUFhVrCqybhDYGgfpRetvCPU+sM5PQP7ieam+FYDBQgiZCuQZHwKya 2FxA== X-Forwarded-Encrypted: i=1; AKwUvBwXLJE7EJV0WCnfmkqWyh50u5KxtAKwmmGxiRvAjMIyIG2fM1mqFDgUuM5LkQLy7djUWbErNnk=@vger.kernel.org X-Gm-Message-State: AFq9FYKw2PLzHYTqiIIN/ch3MkH2MmTkYjiaIyP7Yfp+7fHq+81DjbXG +avIuYKp0TWYdtqgYdHJE20SgosmBgyUpTgqawV+jH+JXYPD2xDKX9dQVnh9UnADaokyNQ55zgD U+/itkntx2gFQBNRElvL2hNReaPcK+duxLw5NtCjo5xyqs6kray9WmUD9tEM= X-Mailing-List: netdev@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 X-Received: by 2002:a05:6808:220a:b0:4ed:7045:d3bc with SMTP id 5614622812f47-55c002d9ed3mr3460748b6e.32.1792978364068; Sun, 25 Oct 2026 18:32:44 -0700 (PDT) Date: Sun, 25 Oct 2026 18:32:44 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6adeadbc.a6443767.132891.0050.GAE@google.com> Subject: [syzbot] [wireless?] WARNING in cfg80211_cac_event 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: 734bef548a96 Merge tag 'net-next-7.4' of git://git.kernel... git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=12a55469580000 kernel config: https://syzkaller.appspot.com/x/.config?x=d0f4f48df8e34eb3 dashboard link: https://syzkaller.appspot.com/bug?extid=3df76a08d929e91e5327 compiler: Debian clang version 22.1.8 (1~deb13u4), 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/585a51a9cc57/disk-734bef54.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/b2888e6093ab/vmlinux-734bef54.xz kernel image: https://storage.googleapis.com/syzbot-assets/74d0b6ec60eb/bzImage-734bef54.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+3df76a08d929e91e5327@syzkaller.appspotmail.com ------------[ cut here ]------------ !time_after_eq(jiffies, timeout) WARNING: net/wireless/mlme.c:1309 at cfg80211_cac_event+0x45b/0x6e0 net/wireless/mlme.c:1309, CPU#1: kworker/u8:3/2120 Modules linked in: CPU: 1 UID: 0 PID: 2120 Comm: kworker/u8:3 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026 Workqueue: events_unbound cfg80211_wiphy_work RIP: 0010:cfg80211_cac_event+0x45b/0x6e0 net/wireless/mlme.c:1309 Code: fc ff ff e8 67 a8 7d f6 90 0f 0b 90 eb c8 e8 5c a8 7d f6 48 8d 3d 85 18 43 06 67 48 0f b9 3a e9 35 fd ff ff e8 46 a8 7d f6 90 <0f> 0b 90 e9 82 fe ff ff 89 d9 80 e1 07 fe c1 38 c1 0f 8c 24 fc ff RSP: 0000:ffffc9000328f918 EFLAGS: 00010293 RAX: ffffffff8b4abdda RBX: 0000000100010317 RCX: ffff888031c13e80 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000000000000 RBP: 0000000100011a86 R08: ffff888031c13e80 R09: 0000000000000003 R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880569213e8 R13: dffffc0000000000 R14: 0000000100011a87 R15: 1ffff1100ad2427d FS: 0000000000000000(0000) GS:ffff888123b6b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd8c6a5cdc CR3: 000000007562a000 CR4: 00000000003526f0 Call Trace: ieee80211_dfs_cac_timer_work+0x264/0x380 net/mac80211/mlme.c:3995 cfg80211_wiphy_work+0x29e/0x420 net/wireless/core.c:610 process_one_work kernel/workqueue.c:3495 [inline] process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3578 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3659 kthread+0x38b/0x480 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 --- 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