INFO: task syz-executor:6185 blocked for more than 144 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:22216 pid:6185 tgid:6185 ppid:6180 task_flags:0x400140 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5396 [inline]
__schedule+0x16f9/0x5500 kernel/sched/core.c:7197
__schedule_loop kernel/sched/core.c:7276 [inline]
rt_mutex_schedule+0x76/0xf0 kernel/sched/core.c:7572
rt_mutex_slowlock_block+0x508/0x680 kernel/locking/rtmutex.c:1667
__rt_mutex_slowlock kernel/locking/rtmutex.c:1744 [inline]
__rt_mutex_slowlock_locked kernel/locking/rtmutex.c:1784 [inline]
rt_mutex_slowlock+0x2dc/0x780 kernel/locking/rtmutex.c:1824
__rt_mutex_lock kernel/locking/rtmutex.c:1839 [inline]
__mutex_lock_common kernel/locking/rtmutex_api.c:541 [inline]
mutex_lock_nested+0x168/0x1d0 kernel/locking/rtmutex_api.c:559
kernfs_fop_write_iter+0x3b0/0x540 fs/kernfs/file.c:352
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x629/0xba0 fs/read_write.c:688
ksys_write+0x156/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4c61d1b7ce
RSP: 002b:00007fff1fe31d48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000055557e16d500 RCX: 00007f4c61d1b7ce
RDX: 0000000000000003 RSI: 00007fff1fe31dd0 RDI: 0000000000000005
RBP: 00007f4c61df07f7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 00007fff1fe31dd0 R14: 00007f4c62af4620 R15: 0000000000000003
Showing all locks held in the system:
2 locks held by kworker/0:0/9:
#0: ffff88803fa9bd38 ((wq_completion)wg-crypt-wg2){+.+.}-{0:0}, at: process_one_work+0x897/0x1630 kernel/workqueue.c:3281
#1: ffffc900000e7c40 ((work_completion)(&peer->transmit_packet_work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630 kernel/workqueue.c:3282
3 locks held by kworker/0:1/10:
#0: ffff88813fe42538 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x897/0x1630 kernel/workqueue.c:3281
#1: ffffc900000f7c40 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630 kernel/workqueue.c:3282
#2: ffffffff8f371f78 (rtnl_mutex){+.+.}-{4:4}, at: reg_check_chans_work+0xab/0x10d0 net/wireless/reg.c:2469
4 locks held by pr/legacy/17:
#0: ffffffff8dfba4e0 (console_lock){+.+.}-{0:0}, at: legacy_kthread_func+0x1a3/0x250 kernel/printk/printk.c:3711
#1: ffffffff8dea1dd8 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:305 [inline]
#1: ffffffff8dea1dd8 (console_srcu){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:428 [inline]
#1: ffffffff8dea1dd8 (console_srcu){....}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:291 [inline]
#1: ffffffff8dea1dd8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0xfa/0xb90 kernel/printk/printk.c:3246
#2: ffffffff99b6ead8 (&port_lock_key){+.+.}-{3:3}, at: spin_lock include/linux/spinlock_rt.h:45 [inline]
#2: ffffffff99b6ead8 (&port_lock_key){+.+.}-{3:3}, at: uart_port_lock_irqsave include/linux/serial_core.h:717 [inline]
#2: ffffffff99b6ead8 (&port_lock_key){+.+.}-{3:3}, at: serial8250_console_write+0x179/0x1b90 drivers/tty/serial/8250/8250_port.c:3316
#3: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
#3: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#3: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: __rt_spin_lock kernel/locking/spinlock_rt.c:50 [inline]
#3: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400 kernel/locking/spinlock_rt.c:57
2 locks held by kworker/1:0/32:
#0: ffff88805aeeb138 ((wq_completion)wg-crypt-wg1){+.+.}-{0:0}, at: process_one_work+0x897/0x1630 kernel/workqueue.c:3281
#1: ffffc90000a6fc40 ((work_completion)(&({ do { const void *__vpp_verify = (typeof((worker) + 0))((void *)0); (void)__vpp_verify; } while (0); ((typeof((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker)))))((unsigned long)((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker)))) + (((__per_cpu_offset[(cpu)]))))); })->work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630 kernel/workqueue.c:3282
1 lock held by khungtaskd/39:
#0: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
#0: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#0: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6777
6 locks held by kworker/u8:3/57:
#0: ffff88813fe84138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x897/0x1630 kernel/workqueue.c:3281
#1: ffffc9000123fc40 ((work_completion)(&(&nsim_dev->trap_data->trap_report_dw)->work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630 kernel/workqueue.c:3282
#2: ffff888020f20310 (&devlink->lock_key#6){+.+.}-{4:4}, at: nsim_dev_trap_report_work+0x57/0xbd0 drivers/net/netdevsim/dev.c:909
#3: ffff88802b33ad20 (&nsim_trap_data->trap_lock){+.+.}-{3:3}, at: spin_lock include/linux/spinlock_rt.h:45 [inline]
#3: ffff88802b33ad20 (&nsim_trap_data->trap_lock){+.+.}-{3:3}, at: nsim_dev_trap_report drivers/net/netdevsim/dev.c:862 [inline]
#3: ffff88802b33ad20 (&nsim_trap_data->trap_lock){+.+.}-{3:3}, at: nsim_dev_trap_report_work+0x1ad/0xbd0 drivers/net/netdevsim/dev.c:922
#4: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
#4: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#4: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: __rt_spin_lock kernel/locking/spinlock_rt.c:50 [inline]
#4: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400 kernel/locking/spinlock_rt.c:57
#5: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
#5: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#5: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: class_rcu_constructor include/linux/rcupdate.h:1181 [inline]
#5: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: unwind_next_frame+0xa6/0x2550 arch/x86/kernel/unwind_orc.c:495
3 locks held by kworker/u9:0/60:
#0: ffff888024c90138 ((wq_completion)hci3){+.+.}-{0:0}, at: process_one_work+0x897/0x1630 kernel/workqueue.c:3281
#1: ffffc9000126fc40 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630 kernel/workqueue.c:3282
#2: ffff888040edcf80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1d3/0x400 net/bluetooth/hci_sync.c:331
5 locks held by kworker/u8:4/67:
#0: ffff888031ccc938 ((wq_completion)bat_events){+.+.}-{0:0}, at: process_one_work+0x897/0x1630 kernel/workqueue.c:3281
#1: ffffc9000152fc40 ((work_completion)(&(&bat_priv->tt.work)->work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630 kernel/workqueue.c:3282
#2: ffffffff8de5f380 (local_bh){.+.+}-{1:3}, at: __local_bh_disable_ip+0x3c/0x420 kernel/softirq.c:163
#3: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: __local_bh_disable_ip+0x3c/0x420 kernel/softirq.c:163
#4: ffff8880576432d8 (key#19){+...}-{3:3}, at: spin_lock_bh include/linux/spinlock_rt.h:90 [inline]
#4: ffff8880576432d8 (key#19){+...}-{3:3}, at: batadv_tt_global_purge net/batman-adv/translation-table.c:2235 [inline]
#4: ffff8880576432d8 (key#19){+...}-{3:3}, at: batadv_tt_purge+0x138/0xa10 net/batman-adv/translation-table.c:3515
3 locks held by kworker/u8:7/166:
#0: ffff888031d40138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x897/0x1630 kernel/workqueue.c:3281
#1: ffffc9000397fc40 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630 kernel/workqueue.c:3282
#2: ffffffff8f371f78 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#2: ffffffff8f371f78 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_dad_work+0x124/0x1680 net/ipv6/addrconf.c:4206
1 lock held by hwrng/790:
#0: ffffffff8e891378 (reading_mutex){+.+.}-{4:4}, at: hwrng_fillfn+0x62/0x590 drivers/char/hw_random/core.c:540
4 locks held by kworker/0:2/823:
#0: ffff88805aeeb538 ((wq_completion)wg-kex-wg1){+.+.}-{0:0}, at: process_one_work+0x897/0x1630 kernel/workqueue.c:3281
#1: ffffc900054afc40 ((work_completion)(&({ do { const void *__vpp_verify = (typeof((worker) + 0))((void *)0); (void)__vpp_verify; } while (0); ((typeof((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker)))))((unsigned long)((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker)))) + (((__per_cpu_offset[(cpu)]))))); })->work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630 kernel/workqueue.c:3282
#2: ffff88801ef5ee88 (&handshake->lock){++++}-{4:4}, at: wg_noise_handshake_begin_session+0x38/0xbe0 drivers/net/wireguard/noise.c:822
#3: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
#3: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#3: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: class_rcu_constructor include/linux/rcupdate.h:1181 [inline]
#3: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: unwind_next_frame+0xa6/0x2550 arch/x86/kernel/unwind_orc.c:495
6 locks held by kworker/u9:1/4925:
#0: ffff88802a2c5938 ((wq_completion)hci2){+.+.}-{0:0}, at: process_one_work+0x897/0x1630 kernel/workqueue.c:3281
#1: ffffc90010f27c40 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630 kernel/workqueue.c:3282
#2: ffff88802b898f80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1d3/0x400 net/bluetooth/hci_sync.c:331
#3: ffff88802b8980b0 (&hdev->lock){+.+.}-{4:4}, at: hci_abort_conn_sync+0xa6f/0x1190 net/bluetooth/hci_sync.c:5744
#4: ffffffff8f4f26d8 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_connect_cfm include/net/bluetooth/hci_core.h:2136 [inline]
#4: ffffffff8f4f26d8 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_conn_failed+0x165/0x340 net/bluetooth/hci_conn.c:1409
#5: ffff8880375ddb70 (&conn->lock#2){+.+.}-{4:4}, at: l2cap_conn_del+0x92/0x570 net/bluetooth/l2cap_core.c:1777
8 locks held by jbd2/sda1-8/4937:
#0: ffff8880445c7ea0 (&ret->b_state_lock){+.+.}-{3:3}, at: spin_lock include/linux/spinlock_rt.h:45 [inline]
#0: ffff8880445c7ea0 (&ret->b_state_lock){+.+.}-{3:3}, at: jbd2_journal_commit_transaction+0x38e3/0x5b20 fs/jbd2/commit.c:963
#1: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
#1: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#1: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: __rt_spin_lock kernel/locking/spinlock_rt.c:50 [inline]
#1: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400 kernel/locking/spinlock_rt.c:57
#2: ffff88803657a920 (&journal->j_list_lock){+.+.}-{3:3}, at: spin_lock include/linux/spinlock_rt.h:45 [inline]
#2: ffff88803657a920 (&journal->j_list_lock){+.+.}-{3:3}, at: jbd2_journal_commit_transaction+0x3ad1/0x5b20 fs/jbd2/commit.c:993
#3: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
#3: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#3: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: __rt_spin_lock kernel/locking/spinlock_rt.c:50 [inline]
#3: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400 kernel/locking/spinlock_rt.c:57
#4: ffff888031b1e118 (&wb->list_lock){+.+.}-{3:3}, at: spin_lock include/linux/spinlock_rt.h:45 [inline]
#4: ffff888031b1e118 (&wb->list_lock){+.+.}-{3:3}, at: locked_inode_to_wb_and_lock_list+0x208/0x310 fs/fs-writeback.c:350
#5: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
#5: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#5: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: __rt_spin_lock kernel/locking/spinlock_rt.c:50 [inline]
#5: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400 kernel/locking/spinlock_rt.c:57
#6: ffff8880271aa328 (&sb->s_type->i_lock_key#4){+.+.}-{3:3}, at: spin_lock include/linux/spinlock_rt.h:45 [inline]
#6: ffff8880271aa328 (&sb->s_type->i_lock_key#4){+.+.}-{3:3}, at: __mark_inode_dirty+0x6ec/0x13b0 fs/fs-writeback.c:2667
#7: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
#7: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#7: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: __rt_spin_lock kernel/locking/spinlock_rt.c:50 [inline]
#7: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400 kernel/locking/spinlock_rt.c:57
2 locks held by getty/5363:
#0: ffff888031f3e0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90003cc62e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x462/0x13a0 drivers/tty/n_tty.c:2211
3 locks held by kworker/1:3/5616:
#0: ffff88813fe42538 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x897/0x1630 kernel/workqueue.c:3281
#1: ffffc900041ffc40 ((work_completion)(&(&gc_work->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630 kernel/workqueue.c:3282
#2: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
#2: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#2: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: gc_worker+0x265/0x12e0 net/netfilter/nf_conntrack_core.c:1543
3 locks held by kworker/u9:2/5652:
#0: ffff8880261f5938 ((wq_completion)hci0){+.+.}-{0:0}, at: process_one_work+0x897/0x1630 kernel/workqueue.c:3281
#1: ffffc9000500fc40 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630 kernel/workqueue.c:3282
#2: ffff888029b60f80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1d3/0x400 net/bluetooth/hci_sync.c:331
5 locks held by kworker/0:3/5685:
#0: ffff88803b314138 ((wq_completion)wg-kex-wg2#2){+.+.}-{0:0}, at: process_one_work+0x897/0x1630 kernel/workqueue.c:3281
#1: ffffc9000504fc40 ((work_completion)(&({ do { const void *__vpp_verify = (typeof((worker) + 0))((void *)0); (void)__vpp_verify; } while (0); ((typeof((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker)))))((unsigned long)((__typeof_unqual__(*((worker))) *)(( unsigned long)((worker)))) + (((__per_cpu_offset[(cpu)]))))); })->work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630 kernel/workqueue.c:3282
#2: ffff88803d7256f8 (&wg->static_identity.lock){++++}-{4:4}, at: wg_noise_handshake_create_response+0x14f/0x9e0 drivers/net/wireguard/noise.c:678
#3: ffff888033913940 (&handshake->lock){++++}-{4:4}, at: wg_noise_handshake_create_response+0x160/0x9e0 drivers/net/wireguard/noise.c:679
#4: ffffffff8de5f380 (local_bh){.+.+}-{1:3}, at: __local_bh_disable_ip+0x3c/0x420 kernel/softirq.c:163
7 locks held by syz-executor/6183:
#0: ffff8880357fc480 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2724 [inline]
#0: ffff8880357fc480 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x22d/0xba0 fs/read_write.c:684
#1: ffff888029422478 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1df/0x540 fs/kernfs/file.c:343
#2: ffff888029ab71e8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
#2: ffff888029ab71e8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x232/0x540 fs/kernfs/file.c:344
#3: ffffffff8ebe8758 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: new_device_store+0x13c/0x710 drivers/net/netdevsim/bus.c:184
#4: ffff888036cac160 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1038 [inline]
#4: ffff888036cac160 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1074
#5: ffff8880383ba310 (&devlink->lock_key#7){+.+.}-{4:4}, at: nsim_drv_probe+0xc9/0xc30 drivers/net/netdevsim/dev.c:1658
#6: ffffffff8f371f78 (rtnl_mutex){+.+.}-{4:4}, at: register_nexthop_notifier+0x88/0x290 net/ipv4/nexthop.c:3993
4 locks held by syz-executor/6185:
#0: ffff8880357fc480 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2724 [inline]
#0: ffff8880357fc480 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x22d/0xba0 fs/read_write.c:684
#1: ffff88802fb58078 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1df/0x540 fs/kernfs/file.c:343
#2: ffff888029ab71e8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
#2: ffff888029ab71e8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x232/0x540 fs/kernfs/file.c:344
#3: ffffffff8ebe8758 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: new_device_store+0x13c/0x710 drivers/net/netdevsim/bus.c:184
1 lock held by syz-executor/6187:
#0: ffffffff8f371f78 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#0: ffffffff8f371f78 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x404/0x1ad0 net/ipv4/devinet.c:978
5 locks held by kworker/u9:4/6189:
#0: ffff8880348b4138 ((wq_completion)hci4){+.+.}-{0:0}, at: process_one_work+0x897/0x1630 kernel/workqueue.c:3281
#1: ffffc90003ebfc40 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630 kernel/workqueue.c:3282
#2: ffff88803b74cf80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1d3/0x400 net/bluetooth/hci_sync.c:331
#3: ffff88803b74c0b0 (&hdev->lock){+.+.}-{4:4}, at: hci_abort_conn_sync+0xa6f/0x1190 net/bluetooth/hci_sync.c:5744
#4: ffffffff8f4f26d8 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_connect_cfm include/net/bluetooth/hci_core.h:2136 [inline]
#4: ffffffff8f4f26d8 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_conn_failed+0x165/0x340 net/bluetooth/hci_conn.c:1409
2 locks held by syz-executor/6190:
#0: ffffffff8f371f78 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
#0: ffffffff8f371f78 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
#0: ffffffff8f371f78 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x883/0x1bb0 net/core/rtnetlink.c:4109
#1: ffff88803c250f88 (&dev_instance_lock_key#23){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2823 [inline]
#1: ffff88803c250f88 (&dev_instance_lock_key#23){+.+.}-{4:4}, at: netdev_lock_ops include/net/netdev_lock.h:42 [inline]
#1: ffff88803c250f88 (&dev_instance_lock_key#23){+.+.}-{4:4}, at: do_setlink+0x3d2/0x45a0 net/core/rtnetlink.c:3091
3 locks held by kworker/u9:5/6194:
#0: ffff8880261d8938 ((wq_completion)hci1){+.+.}-{0:0}, at: process_one_work+0x897/0x1630 kernel/workqueue.c:3281
#1: ffffc90003e6fc40 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630 kernel/workqueue.c:3282
#2: ffff88803565cf80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1d3/0x400 net/bluetooth/hci_sync.c:331
7 locks held by syz-executor/6195:
#0: ffff88805ab2e138 (&sb->s_type->i_mutex_key#13){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1029 [inline]
#0: ffff88805ab2e138 (&sb->s_type->i_mutex_key#13){+.+.}-{4:4}, at: __sock_release+0x89/0x250 net/socket.c:725
#1: ffff888031ff9418 (sk_lock-AF_INET6){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1713 [inline]
#1: ffff888031ff9418 (sk_lock-AF_INET6){+.+.}-{0:0}, at: tcp_close+0x1d/0x110 net/ipv4/tcp.c:3315
#2: ffffffff8de5f380 (local_bh){.+.+}-{1:3}, at: __local_bh_disable_ip+0x3c/0x420 kernel/softirq.c:163
#3: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: __local_bh_disable_ip+0x3c/0x420 kernel/softirq.c:163
#4: ffff888031ff9360 (slock-AF_INET6){+...}-{3:3}, at: spin_lock include/linux/spinlock_rt.h:45 [inline]
#4: ffff888031ff9360 (slock-AF_INET6){+...}-{3:3}, at: __tcp_close+0x855/0x1010 net/ipv4/tcp.c:3236
#5: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
#5: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#5: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: __rt_spin_lock kernel/locking/spinlock_rt.c:50 [inline]
#5: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400 kernel/locking/spinlock_rt.c:57
#6: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
#6: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#6: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: xa_find+0x8c/0x2b0 lib/xarray.c:2195
3 locks held by kworker/1:5/6472:
#0: ffff88813fe43938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x897/0x1630 kernel/workqueue.c:3281
#1: ffffc9000436fc40 (rx_mode_work){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630 kernel/workqueue.c:3282
#2: ffffffff8f371f78 (rtnl_mutex){+.+.}-{4:4}, at: netdev_rx_mode_work+0x1c/0x460 net/core/dev_addr_lists.c:1312
2 locks held by dhcpcd-run-hook/6501:
#0: ffff8880b8643fe0 ((&pcs->lock)){+.+.}-{3:3}, at: alloc_from_pcs mm/slub.c:4756 [inline]
#0: ffff8880b8643fe0 ((&pcs->lock)){+.+.}-{3:3}, at: slab_alloc_node mm/slub.c:4896 [inline]
#0: ffff8880b8643fe0 ((&pcs->lock)){+.+.}-{3:3}, at: kmem_cache_alloc_noprof+0x1a3/0x680 mm/slub.c:4918
#1: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
#1: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#1: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: __rt_spin_trylock kernel/locking/spinlock_rt.c:110 [inline]
#1: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rt_spin_trylock+0x10c/0x2b0 kernel/locking/spinlock_rt.c:118
2 locks held by syz-executor/6503:
#0: ffff88802b983ad0 (&sig->cred_guard_mutex){+.+.}-{4:4}, at: prepare_bprm_creds fs/exec.c:1352 [inline]
#0: ffff88802b983ad0 (&sig->cred_guard_mutex){+.+.}-{4:4}, at: bprm_execve+0xba/0x1510 fs/exec.c:1728
#1: ffff8880264e33c0 (&tsk->futex_exit_mutex){+.+.}-{4:4}, at: futex_cleanup_begin kernel/futex/core.c:1461 [inline]
#1: ffff8880264e33c0 (&tsk->futex_exit_mutex){+.+.}-{4:4}, at: futex_exec_release+0x33/0x1d0 kernel/futex/core.c:1503
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
nmi_cpu_backtrace+0x274/0x2d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
__sys_info lib/sys_info.c:157 [inline]
sys_info+0x135/0x170 lib/sys_info.c:165
check_hung_uninterruptible_tasks kernel/hung_task.c:353 [inline]
watchdog+0xfd3/0x1030 kernel/hung_task.c:561
kthread+0x388/0x470 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
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6059 Comm: syz-execprog Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0033:0x4628f8
Code: 48 89 4c 24 38 66 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 39 05 c1 3b e2 02 0f 8e 38 01 00 00 48 8b 15 ac 3b e2 02 48 8b 14 c2 <48> 85 d2 74 0b 8b 5a 04 83 fb 01 0f 95 c3 eb 05 bb 01 00 00 00 84
RSP: 002b:00002f7c956cdeb0 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 00002f7c956e2008 RCX: 0000000000000000
RDX: 00002f7c956d2008 RSI: 00002f7c956cdef0 RDI: 0000000000000001
RBP: 00002f7c956cdf10 R08: 0000000003b605ca R09: 3fffffffffffffff
R10: 4000000000000000 R11: 0000000000000202 R12: 00002f7c956cdf00
R13: 00002f7c956e2001 R14: 00002f7c956725a0 R15: ffffffffffffffff
FS: 00002f7c956e2090 GS: 0000000000000000