From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f199.google.com (mail-oi1-f199.google.com [209.85.167.199]) (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 390CF483804 for ; Sat, 17 Oct 2026 11:26:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792236389; cv=none; b=toemK9Qeb/+VyH1Wcnp1pOZjUUFLGBKaB2eYMmpyY9tpHWMK4r7oawSDZYcp7ikDLDqZ14CgKDZHViSjm1F5CTn1h/5ingTGqsPJCLzeaZn7T7X7y7TbzXa/N9A3zB2YNpkAtT065d4tv7l8y/ZT4RZL+W8ycoy+nfkdaJG6knE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792236389; c=relaxed/simple; bh=gsribd0HQ70V34cHYt527v1HP/hbNVLeP8tYt+TmdxU=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=qd3w32f/CQikWV9gPJ8K50hON8Tb/QXjbL/sevmsX8csK4sBKuCuygSVcB0w+nl2s+Af/U/xRYudVox+zR/S+0Iwf8jJ1pzoUzXcvL3zLsGPIrVarEzI3xOSRhFchoVLkJ4/q1wOlq2Bn8cC8iPGTC4M7GIPFaiEeLdnnYP7uT0= 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=209.85.167.199 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-f199.google.com with SMTP id 5614622812f47-4b28dafb8e1so1325177b6e.2 for ; Sat, 17 Oct 2026 04:26:25 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1792236385; x=1792841185; h=content-transfer-encoding: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=Vk5FIeZx+LnftjORcYrMxzyaqeVw+XPzBJbPmLQupXo=; b=nWh3oiyJ8WIFbiGVX2YwoU7rdWv6dQssFD4YtcRrpmeBJpoPS7t3kQBtYkYCeXNZdI ibrngdpj+U8dhUSQHhO7YzNR9m2UWdbET/snmUGx5ZChw9AM10awbuV6Nc1/cn+WD4v/ hr94bn4tIWgDAZ6pndsg729K23hCMzQffC8Vbu9Yw5MxtgNmsMfWj3FJvR53OsgLFCnr fgQw1CawQz/pg2wqhkQAjE1keHpyoyu/xWyXPSdC2SIbIoH4Qs7+Cu0DT928XfWXYkcl vvfOUOA/lPaDK8ZPypaW79ccgE9McQKg3ocCFejWc4Up9Tj9ko4tpkKzfObcQawP+Ai3 eS+Q== X-Forwarded-Encrypted: i=1; AKwUvBzZdsQHUJyXmfvpBhU9Xl9Nw0YvLl51WOqSBXS96NsxCGB1xuj47a0oK+UmkTXEsLQMKzHiCmrpiY8XQ+gxy+Mq2wR1pS0=@vger.kernel.org X-Gm-Message-State: AFq9FYKeSnvrezIWKcjesokmzA0IRWKD0dlU+pKJspzuNyFvMxUKM2ed PVlryo+Wi0aRQ6aZV9dVl0q8FGGUyRpL1j1ak5n61soqCgZlhv4ez6rJgdC/UJcj9lJjMpt8N6q KYHZ8AQs8U7K1j/NIVQoyXFFOpC6+9plnUbpYCDtXjsXBMa6R78sB7SnK/Bk= Precedence: bulk X-Mailing-List: linux-security-module@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:1645:b0:4f4:cea0:23 with SMTP id 5614622812f47-53ccaf25555mr1825896b6e.14.1792236384987; Sat, 17 Oct 2026 04:26:24 -0700 (PDT) Date: Sat, 17 Oct 2026 04:26:24 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6ad35b60.7952420f.283480.0360.GAE@google.com> Subject: [syzbot] [keyrings?] [lsm?] BUG: workqueue lockup in key_garbage_collector From: syzbot To: dhowells@redhat.com, jarkko@kernel.org, jmorris@namei.org, keyrings@vger.kernel.org, linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, paul@paul-moore.com, serge@hallyn.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hello, syzbot found the following issue on: HEAD commit: 7a19f0cc94ad Merge branch 'for-next/core' into for-kernelci git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.g= it for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=3D16320f01580000 kernel config: https://syzkaller.appspot.com/x/.config?x=3D26d6221a572842a= c dashboard link: https://syzkaller.appspot.com/bug?extid=3Dc15de43f1e7fffbb7= b9b compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 userspace arch: arm64 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/296cd4b77dbf/disk-= 7a19f0cc.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/e57669ed895f/vmlinux-= 7a19f0cc.xz kernel image: https://storage.googleapis.com/syzbot-assets/c679c1ad76d4/Ima= ge-7a19f0cc.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit= : Reported-by: syzbot+c15de43f1e7fffbb7b9b@syzkaller.appspotmail.com BUG: workqueue lockup - pool cpus=3D0 node=3D0 flags=3D0x2 nice=3D0 stuck f= or 30s! Showing busy workqueues and worker pools: workqueue events: flags=3D0x100 pwq 2: cpus=3D0 node=3D0 flags=3D0x2 nice=3D0 active=3D13 refcnt=3D14 in-flight: 10:key_garbage_collector for 51s ,1030:request_firmware_work= _func for 87s pending: nsim_dev_hwstats_traffic_work, 2*psi_avgs_work, vmstat_shepher= d, 4*ovs_dp_masks_rebalance, 2*psi_avgs_work, delayed_vfree_work pwq 6: cpus=3D1 node=3D0 flags=3D0x2 nice=3D0 active=3D12 refcnt=3D13 in-flight: 4831:nsim_fib_event_work for 56s ,26:nsim_fib_event_work for= 56s pending: 4*nsim_dev_hwstats_traffic_work, 2*psi_avgs_work, 2*ovs_dp_mas= ks_rebalance, free_ipc, delayed_vfree_work workqueue events_unbound: flags=3D0x2 pwq 8: cpus=3D0-1 flags=3D0x6 nice=3D0 active=3D5 refcnt=3D6 pending: toggle_allocation_gate, 2*nsim_dev_trap_report_work, flush_mem= cg_stats_dwork, nsim_dev_trap_report_work pwq 8: cpus=3D0-1 flags=3D0x6 nice=3D0 active=3D24 refcnt=3D25 in-flight: 524:cfg80211_wiphy_work for 56s ,134:cfg80211_wiphy_work for= 56s ,12:cfg80211_wiphy_work for 41s ,13:cfg80211_wiphy_work for 57s ,40:cf= g80211_wiphy_work for 48s ,1395:cfg80211_wiphy_work for 48s ,41:cfg80211_wi= phy_work for 56s ,1171:cfg80211_wiphy_work for 57s cfg80211_wiphy_work pending: 5*cfg80211_wiphy_work, 2*nsim_dev_trap_report_work, 3*cfg80211= _wiphy_work, crng_reseed, cfg80211_wiphy_work, 3*macvlan_process_broadcast workqueue events_power_efficient: flags=3D0x82 pwq 8: cpus=3D0-1 flags=3D0x6 nice=3D0 active=3D6 refcnt=3D7 pending: neigh_periodic_work, wg_ratelimiter_gc_entries, neigh_managed_= work, fb_flashcursor, neigh_managed_work, gc_worker pwq 8: cpus=3D0-1 flags=3D0x6 nice=3D0 active=3D2 refcnt=3D3 pending: neigh_periodic_work, do_cache_clean workqueue events_dfl_long: flags=3D0x2 pwq 8: cpus=3D0-1 flags=3D0x6 nice=3D0 active=3D5 refcnt=3D6 pending: 5*defense_work_handler pwq 8: cpus=3D0-1 flags=3D0x6 nice=3D0 active=3D1 refcnt=3D2 pending: defense_work_handler workqueue mm_percpu_wq: flags=3D0x108 pwq 2: cpus=3D0 node=3D0 flags=3D0x2 nice=3D0 active=3D1 refcnt=3D3 pending: vmstat_update pwq 6: cpus=3D1 node=3D0 flags=3D0x2 nice=3D0 active=3D1 refcnt=3D2 pending: vmstat_update workqueue writeback: flags=3D0x4a pwq 8: cpus=3D0-1 flags=3D0x6 nice=3D0 active=3D1 refcnt=3D4 MAYDAY pending: wb_workfn workqueue iou_exit: flags=3D0x2 pwq 8: cpus=3D0-1 flags=3D0x6 nice=3D0 active=3D1 refcnt=3D2 pending: io_ring_exit_work workqueue mld: flags=3D0x40108 pwq 2: cpus=3D0 node=3D0 flags=3D0x2 nice=3D0 active=3D1 refcnt=3D3 MAYDA= Y pending: mld_dad_work pwq 6: cpus=3D1 node=3D0 flags=3D0x2 nice=3D0 active=3D1 refcnt=3D70 MAYD= AY in-flight: 4816:mld_ifc_work for 7s inactive: 3*mld_ifc_work, mld_dad_work, 11*mld_ifc_work, mld_dad_work, = 6*mld_ifc_work, mld_dad_work, 8*mld_ifc_work, mld_dad_work, 10*mld_ifc_work= , mld_dad_work, mld_ifc_work, 2*mld_dad_work, 2*mld_ifc_work, mld_dad_work,= mld_ifc_work, mld_dad_work, 13*mld_ifc_work, 2*mld_dad_work workqueue ipv6_addrconf: flags=3D0x6000a pwq 8: cpus=3D0-1 flags=3D0x6 nice=3D0 active=3D1 refcnt=3D419 MAYDAY pending: mayday_cursor_func, addrconf_dad_work inactive: 413*addrconf_dad_work workqueue bat_events: flags=3D0x6000a pwq 8: cpus=3D0-1 flags=3D0x6 nice=3D0 active=3D1 refcnt=3D45 MAYDAY in-flight: 2856(RESCUER):batadv_tt_purge for 8s pending: mayday_cursor_func inactive: 2*batadv_tt_purge, 4*batadv_mcast_mla_update, batadv_purge_or= ig, 3*batadv_iv_send_outstanding_bat_ogm_packet, batadv_purge_orig, 2*batad= v_iv_send_outstanding_bat_ogm_packet, 2*batadv_purge_orig, batadv_iv_send_o= utstanding_bat_ogm_packet, batadv_purge_orig, batadv_iv_send_outstanding_ba= t_ogm_packet, batadv_mcast_mla_update, 8*batadv_iv_send_outstanding_bat_ogm= _packet, batadv_dat_purge, batadv_bla_periodic_work, batadv_dat_purge, bata= dv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_work, batadv_da= t_purge, batadv_bla_periodic_work, batadv_dat_purge, batadv_bla_periodic_wo= rk, 2*batadv_tt_purge workqueue wg-kex-wg0: flags=3D0x6 pwq 8: cpus=3D0-1 flags=3D0x6 nice=3D0 active=3D1 refcnt=3D2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg0: flags=3D0x128 pwq 2: cpus=3D0 node=3D0 flags=3D0x2 nice=3D0 active=3D3 refcnt=3D5 MAYDA= Y pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decry= pt_worker pwq 6: cpus=3D1 node=3D0 flags=3D0x2 nice=3D0 active=3D4 refcnt=3D7 MAYDA= Y in-flight: 4824:wg_packet_tx_worker for 57s wg_packet_tx_worker pending: wg_packet_encrypt_worker, wg_packet_decrypt_worker workqueue wg-crypt-wg1: flags=3D0x128 pwq 2: cpus=3D0 node=3D0 flags=3D0x2 nice=3D0 active=3D3 refcnt=3D5 MAYDA= Y pending: wg_packet_tx_worker, wg_packet_decrypt_worker, wg_packet_encry= pt_worker pwq 6: cpus=3D1 node=3D0 flags=3D0x2 nice=3D0 active=3D2 refcnt=3D5 MAYDA= Y pending: wg_packet_decrypt_worker, wg_packet_encrypt_worker workqueue wg-kex-wg2: flags=3D0x6 pwq 8: cpus=3D0-1 flags=3D0x6 nice=3D0 active=3D1 refcnt=3D2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg2: flags=3D0x128 pwq 2: cpus=3D0 node=3D0 flags=3D0x2 nice=3D0 active=3D3 refcnt=3D5 MAYDA= Y pending: wg_packet_decrypt_worker, wg_packet_tx_worker, wg_packet_encry= pt_worker workqueue wg-kex-wg0: flags=3D0x6 pwq 8: cpus=3D0-1 flags=3D0x6 nice=3D0 active=3D1 refcnt=3D2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg0: flags=3D0x128 pwq 2: cpus=3D0 node=3D0 flags=3D0x2 nice=3D0 active=3D3 refcnt=3D6 MAYDA= Y pending: wg_packet_encrypt_worker, wg_packet_decrypt_worker, wg_packet_= tx_worker pwq 6: cpus=3D1 node=3D0 flags=3D0x2 nice=3D0 active=3D2 refcnt=3D3 pending: wg_packet_tx_worker, wg_packet_decrypt_worker workqueue wg-crypt-wg1: flags=3D0x128 pwq 2: cpus=3D0 node=3D0 flags=3D0x2 nice=3D0 active=3D2 refcnt=3D3 pending: wg_packet_tx_worker, wg_packet_encrypt_worker workqueue wg-kex-wg2: flags=3D0x6 pwq 8: cpus=3D0-1 flags=3D0x6 nice=3D0 active=3D1 refcnt=3D2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg2: flags=3D0x128 pwq 2: cpus=3D0 node=3D0 flags=3D0x2 nice=3D0 active=3D3 refcnt=3D5 MAYDA= Y pending: wg_packet_decrypt_worker, wg_packet_tx_worker, wg_packet_encry= pt_worker workqueue wg-kex-wg0: flags=3D0x6 pwq 8: cpus=3D0-1 flags=3D0x6 nice=3D0 active=3D1 refcnt=3D2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg0: flags=3D0x128 pwq 2: cpus=3D0 node=3D0 flags=3D0x2 nice=3D0 active=3D3 refcnt=3D5 MAYDA= Y pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decry= pt_worker pwq 6: cpus=3D1 node=3D0 flags=3D0x2 nice=3D0 active=3D2 refcnt=3D5 MAYDA= Y pending: wg_packet_tx_worker, wg_packet_decrypt_worker workqueue wg-kex-wg0: flags=3D0x6 pwq 8: cpus=3D0-1 flags=3D0x6 nice=3D0 active=3D1 refcnt=3D2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg0: flags=3D0x128 pwq 2: cpus=3D0 node=3D0 flags=3D0x2 nice=3D0 active=3D3 refcnt=3D5 MAYDA= Y pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decry= pt_worker pwq 6: cpus=3D1 node=3D0 flags=3D0x2 nice=3D0 active=3D2 refcnt=3D5 MAYDA= Y pending: wg_packet_decrypt_worker, wg_packet_encrypt_worker workqueue wg-kex-wg1: flags=3D0x6 pwq 8: cpus=3D0-1 flags=3D0x6 nice=3D0 active=3D1 refcnt=3D2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg1: flags=3D0x128 pwq 2: cpus=3D0 node=3D0 flags=3D0x2 nice=3D0 active=3D3 refcnt=3D5 MAYDA= Y pending: wg_packet_tx_worker, wg_packet_encrypt_worker, wg_packet_decry= pt_worker pwq 6: cpus=3D1 node=3D0 flags=3D0x2 nice=3D0 active=3D1 refcnt=3D4 MAYDA= Y pending: wg_packet_encrypt_worker workqueue wg-kex-wg1: flags=3D0x6 pwq 8: cpus=3D0-1 flags=3D0x6 nice=3D0 active=3D2 refcnt=3D3 pending: 2*wg_packet_handshake_send_worker workqueue wg-crypt-wg1: flags=3D0x128 pwq 2: cpus=3D0 node=3D0 flags=3D0x2 nice=3D0 active=3D3 refcnt=3D5 MAYDA= Y pending: wg_packet_decrypt_worker, wg_packet_tx_worker, wg_packet_encry= pt_worker pwq 6: cpus=3D1 node=3D0 flags=3D0x2 nice=3D0 active=3D2 refcnt=3D5 MAYDA= Y pending: wg_packet_decrypt_worker, wg_packet_encrypt_worker workqueue wg-kex-wg2: flags=3D0x6 pwq 8: cpus=3D0-1 flags=3D0x6 nice=3D0 active=3D1 refcnt=3D2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg2: flags=3D0x128 pwq 2: cpus=3D0 node=3D0 flags=3D0x2 nice=3D0 active=3D2 refcnt=3D4 MAYDA= Y pending: wg_packet_tx_worker, wg_packet_encrypt_worker pwq 6: cpus=3D1 node=3D0 flags=3D0x2 nice=3D0 active=3D1 refcnt=3D4 MAYDA= Y pending: wg_packet_encrypt_worker workqueue wg-crypt-wg2: flags=3D0x128 pwq 2: cpus=3D0 node=3D0 flags=3D0x2 nice=3D0 active=3D3 refcnt=3D4 pending: wg_packet_decrypt_worker, wg_packet_tx_worker, wg_packet_encry= pt_worker workqueue wg-kex-wg0: flags=3D0x6 pwq 8: cpus=3D0-1 flags=3D0x6 nice=3D0 active=3D1 refcnt=3D2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg0: flags=3D0x128 pwq 2: cpus=3D0 node=3D0 flags=3D0x2 nice=3D0 active=3D3 refcnt=3D4 pending: wg_packet_encrypt_worker, wg_packet_decrypt_worker, wg_packet_= tx_worker pwq 6: cpus=3D1 node=3D0 flags=3D0x2 nice=3D0 active=3D3 refcnt=3D6 MAYDA= Y in-flight: 4832:wg_packet_tx_worker for 56s wg_packet_tx_worker pending: wg_packet_encrypt_worker workqueue wg-crypt-wg1: flags=3D0x128 pwq 2: cpus=3D0 node=3D0 flags=3D0x2 nice=3D0 active=3D3 refcnt=3D5 MAYDA= Y pending: wg_packet_tx_worker, wg_packet_encrypt_worker, wg_packet_decry= pt_worker pwq 6: cpus=3D1 node=3D0 flags=3D0x2 nice=3D0 active=3D2 refcnt=3D5 MAYDA= Y pending: wg_packet_encrypt_worker, wg_packet_decrypt_worker workqueue wg-kex-wg2: flags=3D0x6 pwq 8: cpus=3D0-1 flags=3D0x6 nice=3D0 active=3D1 refcnt=3D2 pending: wg_packet_handshake_send_worker workqueue wg-crypt-wg2: flags=3D0x128 pwq 2: cpus=3D0 node=3D0 flags=3D0x2 nice=3D0 active=3D3 refcnt=3D5 MAYDA= Y pending: wg_packet_decrypt_worker, wg_packet_tx_worker, wg_packet_encry= pt_worker pwq 6: cpus=3D1 node=3D0 flags=3D0x2 nice=3D0 active=3D1 refcnt=3D4 MAYDA= Y pending: wg_packet_encrypt_worker pool 2: cpus=3D0 node=3D0 flags=3D0x2 nice=3D0 hung=3D30s workers=3D6 manag= er: 4872 idle: 4314 9 4802 pool 6: cpus=3D1 node=3D0 flags=3D0x2 nice=3D0 hung=3D7s workers=3D9 manage= r: 4925 idle: 24 4817 866 pool 8: cpus=3D0-1 flags=3D0x6 nice=3D0 hung=3D8s workers=3D9 manager: 1461 Showing backtraces of busy workers in stalled worker pools: pool 2: task:kworker/0:1 state:R running task stack:0 pid:10 tgid:1= 0 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: events key_garbage_collector Call trace: __switch_to+0x2b4/0x6e4 arch/arm64/kernel/process.c:775 (T) context_switch kernel/sched/core.c:5533 [inline] __schedule+0x135c/0x2b00 kernel/sched/core.c:7284 __schedule_loop kernel/sched/core.c:7361 [inline] schedule+0x13c/0x20c kernel/sched/core.c:7376 schedule_timeout+0xc0/0x28c kernel/time/sleep_timeout.c:75 do_wait_for_common kernel/sched/completion.c:100 [inline] __wait_for_common kernel/sched/completion.c:121 [inline] wait_for_common+0x220/0x394 kernel/sched/completion.c:132 wait_for_completion+0x18/0x24 kernel/sched/completion.c:153 synchronize_rcu_normal+0x28c/0x350 kernel/rcu/tree.c:3355 synchronize_rcu+0x1f4/0x258 kernel/rcu/tree.c:3413 key_garbage_collector+0x728/0x894 security/keys/gc.c:297 process_one_work kernel/workqueue.c:3396 [inline] process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3479 worker_thread+0x798/0xbd0 kernel/workqueue.c:3560 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 pool 2: task:kworker/0:2 state:R running task stack:0 pid:1030 tgid:1= 030 ppid:2 task_flags:0x4208060 flags:0x00000010 Workqueue: events request_firmware_work_func Call trace: __switch_to+0x2b4/0x6e4 arch/arm64/kernel/process.c:775 (T) context_switch kernel/sched/core.c:5533 [inline] __schedule+0x135c/0x2b00 kernel/sched/core.c:7284 preempt_schedule_common+0xd4/0x190 kernel/sched/core.c:7463 preempt_schedule+0x60/0x78 kernel/sched/core.c:7487 __local_bh_enable_ip+0x16c/0x234 kernel/softirq.c:480 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:237 [inline] _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:245 spin_unlock_bh include/linux/spinlock.h:407 [inline] restore_regulatory_settings+0x6f0/0x1650 net/wireless/reg.c:3555 regdb_fw_cb+0x14c/0x1a8 net/wireless/reg.c:1026 request_firmware_work_func+0xe8/0x24c drivers/base/firmware_loader/main.c:= 1164 process_one_work kernel/workqueue.c:3396 [inline] process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3479 worker_thread+0x798/0xbd0 kernel/workqueue.c:3560 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 --- 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