INFO: task syz-executor.4:17939 blocked for more than 143 seconds. Not tainted 5.15.130-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:27064 pid:17939 ppid: 3546 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5026 [inline] __schedule+0x12c4/0x4590 kernel/sched/core.c:6372 schedule+0x11b/0x1f0 kernel/sched/core.c:6455 schedule_timeout+0xac/0x300 kernel/time/timer.c:1860 do_wait_for_common+0x2d9/0x480 kernel/sched/completion.c:85 __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x48/0x60 kernel/sched/completion.c:138 __flush_work+0x124/0x1a0 kernel/workqueue.c:3094 __cancel_work_timer+0x519/0x6a0 kernel/workqueue.c:3181 tls_sk_proto_close+0x121/0x980 net/tls/tls_main.c:308 inet_release+0x174/0x1f0 net/ipv4/af_inet.c:431 __sock_release net/socket.c:649 [inline] sock_close+0xcd/0x230 net/socket.c:1317 __fput+0x3bf/0x890 fs/file_table.c:280 task_work_run+0x129/0x1a0 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0x106/0x130 kernel/entry/common.c:175 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x5d/0x250 kernel/entry/common.c:301 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7fe19aa069da RSP: 002b:00007fff6b549850 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007fe19aa069da RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007fe19ab28980 R08: 0000001b30d20000 R09: 000000000000029e R10: 0000000081b62110 R11: 0000000000000293 R12: 00000000000ade26 R13: ffffffffffffffff R14: 00007fe19a58b000 R15: 00000000000adae5 Showing all locks held in the system: 1 lock held by khungtaskd/27: #0: ffffffff8c91f0e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 3 locks held by kworker/u4:5/1205: #0: ffff8880b9b39718 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:475 #1: ffffc90004ea7d20 ((work_completion)(&(&bat_priv->nc.work)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285 #2: ffff8880b9b28098 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x120/0x260 kernel/time/timer.c:946 1 lock held by kworker/1:3/3248: #0: ffff8880b9b39718 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:475 2 locks held by getty/3260: #0: ffff888023fe5098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252 #1: ffffc90002bb32e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158 3 locks held by kworker/0:4/3590: #0: ffff888011c70d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283 #1: ffffc90003cefd20 ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285 #2: ffff88807796b8d8 (&ctx->tx_lock){+.+.}-{3:3}, at: tx_work_handler+0x107/0x200 net/tls/tls_sw.c:2292 5 locks held by kworker/0:8/3661: #0: ffff888012f90138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283 #1: ffffc90003ddfd20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285 #2: ffff88801eb28220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline] #2: ffff88801eb28220 (&dev->mutex){....}-{3:3}, at: hub_event+0x207/0x56d0 drivers/usb/core/hub.c:5676 #3: ffff88803ec40220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline] #3: ffff88803ec40220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x8a/0x570 drivers/base/dd.c:954 #4: ffff88807e1f71a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline] #4: ffff88807e1f71a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x8a/0x570 drivers/base/dd.c:954 4 locks held by kworker/u4:12/3769: 1 lock held by syz-executor.4/17939: #0: ffff88803cc58e10 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline] #0: ffff88803cc58e10 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: __sock_release net/socket.c:648 [inline] #0: ffff88803cc58e10 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: sock_close+0x98/0x230 net/socket.c:1317 4 locks held by udevd/20726: #0: ffff88801a42a8b8 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xae/0xd10 fs/seq_file.c:182 #1: ffff88801e7dcc88 (&of->mutex){+.+.}-{3:3}, at: kernfs_seq_start+0x50/0x3b0 fs/kernfs/file.c:112 #2: ffff88807a3813a8 (kn->active#92){++++}-{0:0}, at: kernfs_seq_start+0x6f/0x3b0 fs/kernfs/file.c:113 #3: ffff88803ec40220 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:765 [inline] #3: ffff88803ec40220 (&dev->mutex){....}-{3:3}, at: serial_show+0x22/0x90 drivers/usb/core/sysfs.c:142 1 lock held by rm/21103: #0: ffff8880b9a39718 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:475 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.130-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline] watchdog+0xe72/0xeb0 kernel/hung_task.c:295 kthread+0x3f6/0x4f0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 3662 Comm: kworker/u4:6 Not tainted 5.15.130-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 Workqueue: phy8 ieee80211_iface_work RIP: 0010:unwind_next_frame+0xc5/0x1fa0 arch/x86/kernel/unwind_orc.c:436 Code: 24 74 48 89 6c 24 40 4c 89 64 24 78 4c 89 74 24 50 48 89 5c 24 38 bf 01 00 00 00 e8 c5 c8 1e 00 48 ba 00 00 00 00 00 fc ff df <49> 8d 5f 50 48 89 d8 48 c1 e8 03 48 89 44 24 30 80 3c 10 00 74 12 RSP: 0018:ffffc90003dceee8 EFLAGS: 00000202 RAX: 0000000000000202 RBX: 1ffff920007b9df4 RCX: ffffffff913d0003 RDX: dffffc0000000000 RSI: ffffffff89a877a6 RDI: 0000000000000001 RBP: ffffc90003dcefd8 R08: 0000000000000006 R09: ffffc90003dcf090 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90003dcf880 R13: ffffffff816dc570 R14: ffffffff89a877a6 R15: ffffc90003dcefa0 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000561b6736f000 CR3: 0000000038a4e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 kasan_save_stack+0x36/0x60 mm/kasan/common.c:38 kasan_record_aux_stack+0xba/0x100 mm/kasan/generic.c:348 kvfree_call_rcu+0x118/0x8a0 kernel/rcu/tree.c:3583 cfg80211_update_known_bss+0x16b/0x9e0 cfg80211_bss_update+0x16d/0x20d0 net/wireless/scan.c:1767 cfg80211_inform_single_bss_frame_data net/wireless/scan.c:2484 [inline] cfg80211_inform_bss_frame_data+0xa13/0x20f0 net/wireless/scan.c:2517 ieee80211_bss_info_update+0x7a6/0xc80 net/mac80211/scan.c:190 ieee80211_rx_bss_info net/mac80211/ibss.c:1123 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1614 [inline] ieee80211_ibss_rx_queued_mgmt+0x175e/0x2af0 net/mac80211/ibss.c:1643 ieee80211_iface_process_skb net/mac80211/iface.c:1441 [inline] ieee80211_iface_work+0x78f/0xcc0 net/mac80211/iface.c:1495 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298