From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi2-f11.google.com (mail-oi2-f11.google.com [74.125.231.203]) (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 CE3BB381AF1 for ; Mon, 24 Aug 2026 19:37:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.231.203 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787600251; cv=none; b=SAIWfIeeJTg1ni5Wc8IrGl7HxngBQX3NMBORdxPjQ3zyT6qFtxOToMJx7/uvdao4eP+Z/l5c8MF40w+7C5ItAeDxy4yAWNswciB7nJKDVEp8/LYlQVy7BaZEwX9g5Zc+z9EsB9t2IMjjnkp8tkwLiF2/AeXTsJW1JMR6Jy1rZHE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787600251; c=relaxed/simple; bh=6eC9AGRDIZCTvBN7fKdbNMoLABG2BnZKllLB3Y16or4=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=YPJMWM7ChSJnKxrneYNR/VbUqWLEJz8eVICGqvmjgdsYpcWipfjvQ5fqk50g5L2gCJcNtmmlW821CfNKZGe6PJXQd5D/s85QGPHCLLeD5w36Io69DFXt8XZorpiVQtmh0NYxW5qs/enzFiteHVm/zqYnMSO8kQkLfHkkQCig6kI= 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=74.125.231.203 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-oi2-f11.google.com with SMTP id 5614622812f47-4af7193adb7so1288740b6e.0 for ; Mon, 24 Aug 2026 12:37:29 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1787600248; x=1788205048; 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=lO27qM2UVAnOV4+eohD2rDRZkxVBy01CRDmihzDYl2M=; b=Li9ae7t9CFKKweQqcKVZjGdyhCrmt8+EsQnXwr+uVlWdnw12DDrdq6uAYnQWUEvkzm /HZ6lw/1b28QWNjlu/Em/zzXtvM/h6QQyg3tc2YCv8ZEW4Zzl5SASTKpC5gZEdEQlYSn /pNavh1xyde4k4SmnGlTEON/Z85UipzOhYgM/GzcIWyy6JQQlKuWzUWc3oScEJf0yxTv K8lXCo98If5t5FNctVhAFKwlqFgh1yvaGsWXd4mXovxP9Fag+QIXVcdPEqnS0CZ1Nbea YqkNmxjTzD3WPWjulSsWSiX9QDckmBZziWV3SQqIyVnuqvkLxv4x0rvhrS9e1b9aNHO5 W5kw== X-Gm-Message-State: AFuF++nlem1zhQbHf/SHlo/mmX+ZCmV1SPxPjZwe/7bz0aGX+GcQuZZL s2rZkuTCB4LticyNZVuyWu8PkF32eIQF1BzeEWGqb3ilsK8u46GKd82qLxbZiWKwjiSMEbUm72c IOT8A6U8PH3BQir3F+rNxrOAFFv9Ra5zsUSowIwyRjDtZfYpWtm3C36DG9+TPiw== Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6809:289:20b0:4b3:1e40:640b with SMTP id 5614622812f47-4b31e4068ffmr11203804b6e.6.1787600248712; Mon, 24 Aug 2026 12:37:28 -0700 (PDT) Date: Mon, 24 Aug 2026 12:37:28 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a8c9d78.8a8d01ce.18ad14.0000.GAE@google.com> Subject: [syzbot] [kernel?] WARNING: still has locks held in genl_rcv From: syzbot To: linux-kernel@vger.kernel.org, mcgrof@kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 903c1cf6dff9 Add linux-next specific files for 20260821 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=14c09549580000 kernel config: https://syzkaller.appspot.com/x/.config?x=aa9dec010c9e69a7 dashboard link: https://syzkaller.appspot.com/bug?extid=8c7d2de77ff6cd317568 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/e353f3c58611/disk-903c1cf6.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/6c40cf34459f/vmlinux-903c1cf6.xz kernel image: https://storage.googleapis.com/syzbot-assets/f2ffb2610fa7/bzImage-903c1cf6.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+8c7d2de77ff6cd317568@syzkaller.appspotmail.com faux_driver regulatory: loading /lib/firmware/regulatory.db failed with error -4 faux_driver regulatory: Direct firmware load for regulatory.db failed with error -4 faux_driver regulatory: Falling back to sysfs fallback for: regulatory.db ==================================== WARNING: syz.1.698/9760 still has locks held! syzkaller #0 Tainted: G L ------------------------------------ locks held by syz.1.698/9760: 1, last CPU#1: #0: ffffffff902c1228 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1217 stack backtrace: CPU: 1 UID: 0 PID: 9760 Comm: syz.1.698 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_held_locks_bug+0x82/0x90 kernel/locking/lockdep.c:6814 try_to_freeze include/linux/freezer.h:62 [inline] usermodehelper_read_trylock+0x207/0x2c0 kernel/umh.c:228 fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:157 [inline] firmware_fallback_sysfs+0x16e/0xa50 drivers/base/firmware_loader/fallback.c:248 _request_firmware+0x1049/0x1780 drivers/base/firmware_loader/main.c:898 request_firmware+0x36/0x50 drivers/base/firmware_loader/main.c:948 reg_reload_regdb+0x95/0x490 net/wireless/reg.c:1067 genl_family_rcv_msg_doit+0x233/0x340 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x614/0x7a0 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2556 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x7bd/0x940 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec+0x13a/0x180 net/socket.c:800 __sock_sendmsg net/socket.c:815 [inline] ____sys_sendmsg+0x54e/0x850 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+0x1b1/0x290 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: 0033:0x7f7f3639e0d9 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:00007f7f345b4028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f7f36626180 RCX: 00007f7f3639e0d9 RDX: 0000000020000000 RSI: 00002000000001c0 RDI: 0000000000000005 RBP: 00007f7f36435024 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f7f36626218 R14: 00007f7f36626180 R15: 00007fff90f25828 --- 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