INFO: task syz-executor.2:10508 blocked for more than 143 seconds. Not tainted 6.6.0-syzkaller-10135-g016b9332a334 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:26416 pid:10508 tgid:10508 ppid:5093 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5376 [inline] __schedule+0xee2/0x59a0 kernel/sched/core.c:6688 __schedule_loop kernel/sched/core.c:6763 [inline] schedule+0xe7/0x270 kernel/sched/core.c:6778 schedule_timeout+0x278/0x2c0 kernel/time/timer.c:2143 do_wait_for_common kernel/sched/completion.c:95 [inline] __wait_for_common+0x3e0/0x5f0 kernel/sched/completion.c:116 __flush_work+0x523/0xa10 kernel/workqueue.c:3407 __cancel_work_timer+0x3ef/0x580 kernel/workqueue.c:3494 tls_sk_proto_close+0x4b1/0xac0 net/tls/tls_main.c:376 inet_release+0x132/0x270 net/ipv4/af_inet.c:433 inet6_release+0x4f/0x70 net/ipv6/af_inet6.c:485 __sock_release+0xae/0x260 net/socket.c:659 sock_close+0x1c/0x20 net/socket.c:1419 __fput+0x270/0xbb0 fs/file_table.c:394 __fput_sync+0x47/0x50 fs/file_table.c:475 __do_sys_close fs/open.c:1590 [inline] __se_sys_close fs/open.c:1575 [inline] __x64_sys_close+0x87/0xf0 fs/open.c:1575 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3f/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7eff9547b9da RSP: 002b:00007fff1d02f290 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007eff9547b9da RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007eff9559d980 R08: 0000001b31c20000 R09: 000000000000172f R10: 0000000081bae0f6 R11: 0000000000000293 R12: 0000000000228a36 R13: ffffffffffffffff R14: 00007eff95000000 R15: 00000000002286f5 Showing all locks held in the system: 3 locks held by kworker/1:1/27: #0: ffff888013070d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x787/0x15c0 kernel/workqueue.c:2605 #1: ffffc90000a2fd80 ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}-{0:0}, at: process_one_work+0x7e9/0x15c0 kernel/workqueue.c:2606 #2: ffff88823bd120f0 (&ctx->tx_lock){+.+.}-{3:3}, at: tx_work_handler+0x134/0x230 net/tls/tls_sw.c:2535 1 lock held by khungtaskd/29: #0: ffffffff8cfad3a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline] #0: ffffffff8cfad3a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline] #0: ffffffff8cfad3a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6613 2 locks held by getty/4821: #0: ffff8880267230a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243 #1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc5/0x1480 drivers/tty/n_tty.c:2206 2 locks held by kworker/u5:5/5110: #0: ffff88814729c138 ((wq_completion)nbd0-recv){+.+.}-{0:0}, at: process_one_work+0x787/0x15c0 kernel/workqueue.c:2605 #1: ffffc900041dfd80 ((work_completion)(&args->work)){+.+.}-{0:0}, at: process_one_work+0x7e9/0x15c0 kernel/workqueue.c:2606 3 locks held by kworker/1:4/5160: #0: ffff888013070d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x787/0x15c0 kernel/workqueue.c:2605 #1: ffffc90004647d80 ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}-{0:0}, at: process_one_work+0x7e9/0x15c0 kernel/workqueue.c:2606 #2: ffff88803c5404f0 (&ctx->tx_lock){+.+.}-{3:3}, at: tx_work_handler+0x134/0x230 net/tls/tls_sw.c:2535 3 locks held by kworker/0:4/24579: #0: ffff888013070d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x787/0x15c0 kernel/workqueue.c:2605 #1: ffffc90004d37d80 ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}-{0:0}, at: process_one_work+0x7e9/0x15c0 kernel/workqueue.c:2606 #2: ffff88802189c4f0 (&ctx->tx_lock){+.+.}-{3:3}, at: tx_work_handler+0x134/0x230 net/tls/tls_sw.c:2535 1 lock held by syz-executor.2/10508: #0: ffff888031cebe10 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline] #0: ffff888031cebe10 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release+0x86/0x260 net/socket.c:658 1 lock held by syz-executor.5/10648: #0: ffff888041516810 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline] #0: ffff888041516810 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release+0x86/0x260 net/socket.c:658 1 lock held by syz-executor.3/11418: #0: ffff8880415fdc10 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline] #0: ffff8880415fdc10 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release+0x86/0x260 net/socket.c:658 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.6.0-syzkaller-10135-g016b9332a334 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x277/0x380 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x299/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0xf87/0x1210 kernel/hung_task.c:379 kthread+0x33c/0x440 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 31132 Comm: kworker/u4:1 Not tainted 6.6.0-syzkaller-10135-g016b9332a334 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 Workqueue: events_unbound cfg80211_wiphy_work RIP: 0010:skb_peek include/linux/skbuff.h:2067 [inline] RIP: 0010:__skb_dequeue include/linux/skbuff.h:2373 [inline] RIP: 0010:skb_dequeue+0x26/0x180 net/core/skbuff.c:3688 Code: 00 00 00 00 f3 0f 1e fa 41 56 41 55 41 54 55 53 48 89 fb e8 cc fa 22 f9 4c 8d 6b 18 4c 89 ef e8 c0 b6 1b 02 48 89 da 49 89 c4 <48> c1 ea 03 48 b8 00 00 00 00 00 fc ff df 80 3c 02 00 0f 85 02 01 RSP: 0018:ffffc90000007e80 EFLAGS: 00000096 RAX: 0000000000000246 RBX: ffff88807d0895e0 RCX: ffffffff8169759e RDX: ffff88807d0895e0 RSI: 0000000000000004 RDI: ffffc90000007df0 RBP: ffff88807d0895e0 R08: 0000000000000001 R09: fffff52000000fbe R10: 0000000000000003 R11: ffffc90000007ff8 R12: 0000000000000246 R13: ffff88807d0895f8 R14: ffff88807d089638 R15: ffff88807d0895b8 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c004d75000 CR3: 000000000cd77000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_tasklet_handler+0x38/0x130 net/mac80211/main.c:311 tasklet_action_common.constprop.0+0x242/0x3d0 kernel/softirq.c:780 __do_softirq+0x21a/0x968 kernel/softirq.c:553 do_softirq kernel/softirq.c:454 [inline] do_softirq+0xaa/0xe0 kernel/softirq.c:441 __local_bh_enable_ip+0xf8/0x120 kernel/softirq.c:381 ieee80211_tx_skb_tid_band net/mac80211/ieee80211_i.h:2227 [inline] ieee80211_send_scan_probe_req net/mac80211/scan.c:614 [inline] ieee80211_scan_state_send_probe+0x33a/0x9c0 net/mac80211/scan.c:642 ieee80211_scan_work+0x7e7/0x2040 net/mac80211/scan.c:1083 cfg80211_wiphy_work+0x24e/0x330 net/wireless/core.c:435 process_one_work+0x884/0x15c0 kernel/workqueue.c:2630 process_scheduled_works kernel/workqueue.c:2703 [inline] worker_thread+0x8b9/0x1290 kernel/workqueue.c:2784 kthread+0x33c/0x440 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242