From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f72.google.com (mail-oo1-f72.google.com [209.85.161.72]) (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 B224B2727E0 for ; Thu, 26 Feb 2026 03:22:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772076155; cv=none; b=tbkeDPdFNGAizp7jC18gBLlzWEo2bKF+xK14L04Ws57J8fk6RnfdIbpH+hz7o4ulpMQ/Te6HmNUursMSwSnVgudjbqagNksDiTn/a98H+oPNPyq0XtDSPJYW5UTPyr6VEf1fuB7a27NZtbYZwmT18pZkcFwCIuLeuezuFkxRUW8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772076155; c=relaxed/simple; bh=dv+ojd9XtianMSO8mOIwCAVvuh8pa62GgRDVtGhAdRk=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=GF6a1+jab25Ezr22o21kndTHbKDdiMUZcLqgFWUd+to0V4hR6CN8scWOEhz/uCsyl61ALP+1cBeuTfn8JLqjEJGyhAjNBGTcM25nMV25Y2DL7WrnXA7UQ+1y5d+k633pS3qE/MBKWPrUz8QUvBkm+fSM0hsVAFV/1wb2uc8hU3c= 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=209.85.161.72 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-f72.google.com with SMTP id 006d021491bc7-679dcff168dso4830043eaf.3 for ; Wed, 25 Feb 2026 19:22:33 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1772076153; x=1772680953; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=kcj5cPdy6weuO+6wPMEFZwTGe6ZlpjEUbfd7D2wcnRM=; b=JdkSEdmGdEDRvqHeZBLTZvAAfwnengq67ZvPVd9WUQK3I6SYOFSCpMp3fGm51435H3 oN5CPDXKuGUKs2FHMmJrxYGouyK5hA+vrX4zGgtMXKDj3/aNWXqjFEJjycwkjKoBG9na Uoyfu45BWl5mmNzg4Qe9zNYqZUplpCK9223VCpfg4y6Hm7b8S+UpGVaiWdwmwRVqB2ke 1r/BnW+8vo924JakiCWHza6N+0dfXZ+iA4EQjFiyytLk2aKTPUPA0c/Pyzw4DkgWOMVu 3+pxV8HQy90yvABIqrPk7bbD/IVBhjP3ZhMbrZKwBK8l9lyM8hRL8ZZ1rAsdogXsQb/S egnA== X-Forwarded-Encrypted: i=1; AJvYcCVesYBsv/LCovBz9N/bYpfcR0NMKxA+EaGTG9V4RZCy9WTf2vRStGiYt/z/BEpAlQWBb9yvM0iZEBtZJ1MVHw==@vger.kernel.org X-Gm-Message-State: AOJu0Yz+nRGnJrkxYLBPyz78W6FSqoo4QIx5TfzJnHg+YtkvYx4G96T4 nLRrxv+W12bp+Z5/cupJowNMTavVMKjJmZUKBUZ/IxU4M6CJZf37IXlwUeoiaWoxnUlo6JW6Lso PZgdOnS99wfpOOQFwm9HJrG5LSxQNi/2FaQ3PXV/9yR0DeQSOnkTQ/tADrOo= Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:1793:b0:677:18e5:e5a5 with SMTP id 006d021491bc7-679ef7ff38amr1220624eaf.5.1772076152824; Wed, 25 Feb 2026 19:22:32 -0800 (PST) Date: Wed, 25 Feb 2026 19:22:32 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <699fbc78.050a0220.1cd54b.000b.GAE@google.com> Subject: [syzbot] [wireless?] WARNING in ieee80211_set_active_links (3) 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: 7dff99b35460 Remove WARN_ALL_UNSEEDED_RANDOM kernel config.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=113428d6580000 kernel config: https://syzkaller.appspot.com/x/.config?x=af6ed0125ed44356 dashboard link: https://syzkaller.appspot.com/bug?extid=582469b3a9ef5f13606b compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/45c7b6686727/disk-7dff99b3.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/36fcc9cd6296/vmlinux-7dff99b3.xz kernel image: https://storage.googleapis.com/syzbot-assets/fe952fd2745b/bzImage-7dff99b3.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+582469b3a9ef5f13606b@syzkaller.appspotmail.com wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 ------------[ cut here ]------------ wlan0: Failed check-sdata-in-driver check, flags: 0x0 WARNING: net/mac80211/driver-ops.h:1723 at drv_can_activate_links net/mac80211/driver-ops.h:1723 [inline], CPU#0: kworker/u10:3/11668 WARNING: net/mac80211/driver-ops.h:1723 at ieee80211_set_active_links+0x2d0/0x9d0 net/mac80211/link.c:595, CPU#0: kworker/u10:3/11668 Modules linked in: CPU: 0 UID: 0 PID: 11668 Comm: kworker/u10:3 Tainted: G U L syzkaller #0 PREEMPT(full) Tainted: [U]=USER, [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 Workqueue: events_unbound cfg80211_wiphy_work RIP: 0010:drv_can_activate_links net/mac80211/driver-ops.h:1723 [inline] RIP: 0010:ieee80211_set_active_links+0x2d7/0x9d0 net/mac80211/link.c:595 Code: 06 00 00 e8 fb 8e 05 f7 48 8b 34 24 48 81 c6 20 01 00 00 48 89 34 24 e8 e7 8e 05 f7 48 8d 3d 20 ef e7 05 48 8b 34 24 44 89 fa <67> 48 0f b9 3a e9 e0 fe ff ff e8 ca 8e 05 f7 0f b7 c5 4c 8d bb 30 RSP: 0018:ffffc90004947af0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff888029d2aa90 RCX: ffffffff8b026bfe RDX: 0000000000000000 RSI: ffff888029d28120 RDI: ffffffff90ea5b80 RBP: 000000000000000a R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888029d297f8 R13: 0000000000000000 R14: ffff8881446c8e80 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888124351000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005641c1b014d8 CR3: 000000002d732000 CR4: 00000000003526f0 Call Trace: ieee80211_if_parse_active_links+0xbb/0x120 net/mac80211/debugfs_netdev.c:732 wiphy_locked_debugfs_write_work+0xe6/0x1c0 net/wireless/debugfs.c:248 cfg80211_wiphy_work+0x446/0x5c0 net/wireless/core.c:440 process_one_work+0x9d7/0x1920 kernel/workqueue.c:3275 process_scheduled_works kernel/workqueue.c:3358 [inline] worker_thread+0x5da/0xe40 kernel/workqueue.c:3439 kthread+0x370/0x450 kernel/kthread.c:467 ret_from_fork+0x754/0xd80 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 00 00 add %al,(%rax) 2: e8 fb 8e 05 f7 call 0xf7058f02 7: 48 8b 34 24 mov (%rsp),%rsi b: 48 81 c6 20 01 00 00 add $0x120,%rsi 12: 48 89 34 24 mov %rsi,(%rsp) 16: e8 e7 8e 05 f7 call 0xf7058f02 1b: 48 8d 3d 20 ef e7 05 lea 0x5e7ef20(%rip),%rdi # 0x5e7ef42 22: 48 8b 34 24 mov (%rsp),%rsi 26: 44 89 fa mov %r15d,%edx * 29: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2e: e9 e0 fe ff ff jmp 0xffffff13 33: e8 ca 8e 05 f7 call 0xf7058f02 38: 0f b7 c5 movzwl %bp,%eax 3b: 4c rex.WR 3c: 8d .byte 0x8d 3d: bb .byte 0xbb 3e: 30 .byte 0x30 --- 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