INFO: task kworker/1:1H:93 blocked for more than 143 seconds. Not tainted 6.3.0-syzkaller-13164-g78b421b6a7c6 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:1H state:D stack:25936 pid:93 ppid:2 flags:0x00004000 Workqueue: xfs-log/loop5 xlog_ioend_work Call Trace: context_switch kernel/sched/core.c:5343 [inline] __schedule+0x187b/0x4900 kernel/sched/core.c:6669 schedule+0xc3/0x180 kernel/sched/core.c:6745 schedule_timeout+0xb0/0x310 kernel/time/timer.c:2143 ___down_common+0x33e/0x5e0 kernel/locking/semaphore.c:225 __down_common+0x64/0x250 kernel/locking/semaphore.c:246 down+0x84/0xc0 kernel/locking/semaphore.c:63 xfs_buf_lock+0x154/0x4b0 fs/xfs/xfs_buf.c:1119 xfs_buf_item_unpin+0x200/0x720 fs/xfs/xfs_buf_item.c:547 xfs_trans_committed_bulk+0x346/0x830 fs/xfs/xfs_trans.c:806 xlog_cil_committed+0x26d/0xe40 fs/xfs/xfs_log_cil.c:795 xlog_cil_process_committed+0x159/0x1a0 fs/xfs/xfs_log_cil.c:823 xlog_state_shutdown_callbacks+0x2ba/0x3b0 fs/xfs/xfs_log.c:538 xlog_force_shutdown+0x32c/0x390 fs/xfs/xfs_log.c:3837 xlog_ioend_work+0xad/0x100 fs/xfs/xfs_log.c:1429 process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2405 worker_thread+0xa63/0x1210 kernel/workqueue.c:2552 kthread+0x2b8/0x350 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 INFO: task syz-executor.5:6655 blocked for more than 143 seconds. Not tainted 6.3.0-syzkaller-13164-g78b421b6a7c6 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:21912 pid:6655 ppid:5051 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5343 [inline] __schedule+0x187b/0x4900 kernel/sched/core.c:6669 schedule+0xc3/0x180 kernel/sched/core.c:6745 xlog_wait+0x16e/0x1e0 fs/xfs/xfs_log_priv.h:617 xlog_wait_on_iclog+0x307/0x4e0 fs/xfs/xfs_log.c:926 xfs_log_force_seq+0x1da/0x450 fs/xfs/xfs_log.c:3409 __xfs_trans_commit+0xb4a/0xff0 fs/xfs/xfs_trans.c:1014 xfs_setattr_nonsize+0xaae/0xea0 fs/xfs/xfs_iops.c:739 xfs_vn_setattr+0x2cd/0x320 fs/xfs/xfs_iops.c:1023 notify_change+0xc8b/0xf40 fs/attr.c:483 chown_common+0x500/0x850 fs/open.c:774 vfs_fchown fs/open.c:842 [inline] ksys_fchown+0xe2/0x150 fs/open.c:853 __do_sys_fchown fs/open.c:861 [inline] __se_sys_fchown fs/open.c:859 [inline] __x64_sys_fchown+0x7a/0x90 fs/open.c:859 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fac3ca8c169 RSP: 002b:00007fac3d897168 EFLAGS: 00000246 ORIG_RAX: 000000000000005d RAX: ffffffffffffffda RBX: 00007fac3cbabf80 RCX: 00007fac3ca8c169 RDX: 000000000000ee00 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 00007fac3cae7ca1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe017147bf R14: 00007fac3d897300 R15: 0000000000022000 INFO: task syz-executor.5:6724 blocked for more than 144 seconds. Not tainted 6.3.0-syzkaller-13164-g78b421b6a7c6 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:27664 pid:6724 ppid:5051 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5343 [inline] __schedule+0x187b/0x4900 kernel/sched/core.c:6669 schedule+0xc3/0x180 kernel/sched/core.c:6745 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6804 rwsem_down_write_slowpath+0xedd/0x13a0 kernel/locking/rwsem.c:1178 __down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306 inode_lock include/linux/fs.h:775 [inline] open_last_lookups fs/namei.c:3557 [inline] path_openat+0x7ba/0x3170 fs/namei.c:3788 do_filp_open+0x234/0x490 fs/namei.c:3818 do_sys_openat2+0x13f/0x500 fs/open.c:1356 do_sys_open fs/open.c:1372 [inline] __do_sys_openat fs/open.c:1388 [inline] __se_sys_openat fs/open.c:1383 [inline] __x64_sys_openat+0x247/0x290 fs/open.c:1383 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fac3ca8c169 RSP: 002b:00007fac3d876168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fac3cbac050 RCX: 00007fac3ca8c169 RDX: 000000000000275a RSI: 0000000020000040 RDI: ffffffffffffff9c RBP: 00007fac3cae7ca1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe017147bf R14: 00007fac3d876300 R15: 0000000000022000 INFO: task syz-executor.5:6725 blocked for more than 145 seconds. Not tainted 6.3.0-syzkaller-13164-g78b421b6a7c6 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:27120 pid:6725 ppid:5051 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5343 [inline] __schedule+0x187b/0x4900 kernel/sched/core.c:6669 schedule+0xc3/0x180 kernel/sched/core.c:6745 xlog_wait+0x16e/0x1e0 fs/xfs/xfs_log_priv.h:617 xlog_force_lsn+0x512/0x770 fs/xfs/xfs_log.c:3340 xfs_log_force_seq+0x1da/0x450 fs/xfs/xfs_log.c:3409 __xfs_trans_commit+0xb4a/0xff0 fs/xfs/xfs_trans.c:1014 xfs_sync_sb_buf+0x14f/0x1e0 fs/xfs/libxfs/xfs_sb.c:1112 xfs_ioc_setlabel fs/xfs/xfs_ioctl.c:1801 [inline] xfs_file_ioctl+0x1313/0x16a0 fs/xfs/xfs_ioctl.c:1899 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fac3ca8c169 RSP: 002b:00007fac3d855168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fac3cbac120 RCX: 00007fac3ca8c169 RDX: 0000000020000200 RSI: 0000000041009432 RDI: 0000000000000004 RBP: 00007fac3cae7ca1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe017147bf R14: 00007fac3d855300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/13: #0: ffffffff8cf277f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518 1 lock held by rcu_tasks_trace/14: #0: ffffffff8cf27bb0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518 1 lock held by khungtaskd/28: #0: ffffffff8cf27620 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 2 locks held by kworker/1:1H/93: #0: ffff888028f70938 ((wq_completion)xfs-log/loop5){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378 #1: ffffc900025a7d20 ((work_completion)(&iclog->ic_end_io_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380 2 locks held by getty/4743: #0: ffff88802d22a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc900015802f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2176 1 lock held by syz-executor.1/5019: #0: ffffffff8cf2ccf8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline] #0: ffffffff8cf2ccf8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a3/0x890 kernel/rcu/tree_exp.h:992 2 locks held by syz-executor.4/5048: #0: ffff88801f5960e0 (&type->s_umount_key#63){++++}-{3:3}, at: deactivate_super+0xad/0xf0 fs/super.c:361 #1: ffffffff8cf2ccf8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline] #1: ffffffff8cf2ccf8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x46c/0x890 kernel/rcu/tree_exp.h:992 2 locks held by kworker/0:4/5075: #0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378 #1: ffffc9000551fd20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380 2 locks held by syz-executor.5/6655: #0: ffff8880571a4460 (sb_writers#18){.+.+}-{0:0}, at: mnt_want_write_file+0x5e/0x1f0 fs/namespace.c:438 #1: ffff888074b55878 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: inode_lock include/linux/fs.h:775 [inline] #1: ffff888074b55878 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: chown_common+0x3e0/0x850 fs/open.c:764 2 locks held by syz-executor.5/6724: #0: ffff8880571a4460 (sb_writers#18){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:394 #1: ffff888074b55878 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: inode_lock include/linux/fs.h:775 [inline] #1: ffff888074b55878 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: open_last_lookups fs/namei.c:3557 [inline] #1: ffff888074b55878 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{3:3}, at: path_openat+0x7ba/0x3170 fs/namei.c:3788 1 lock held by syz-executor.5/6725: #0: ffff8880571a4460 (sb_writers#18){.+.+}-{0:0}, at: mnt_want_write_file+0x5e/0x1f0 fs/namespace.c:438 2 locks held by kworker/1:27/7862: #0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378 #1: ffffc900176cfd20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.3.0-syzkaller-13164-g78b421b6a7c6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x187/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0xec2/0xf00 kernel/hung_task.c:379 kthread+0x2b8/0x350 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 21 Comm: ksoftirqd/1 Not tainted 6.3.0-syzkaller-13164-g78b421b6a7c6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:85 [inline] RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline] RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline] RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline] RIP: 0010:check_region_inline mm/kasan/generic.c:178 [inline] RIP: 0010:kasan_check_range+0x7f/0x290 mm/kasan/generic.c:187 Code: 00 00 00 00 fc ff df 4f 8d 34 1a 4c 89 f5 4c 29 cd 48 83 fd 10 7f 26 48 85 ed 0f 84 3a 01 00 00 49 f7 d2 49 01 da 41 80 39 00 <0f> 85 c4 01 00 00 49 ff c1 49 ff c2 75 ee e9 1d 01 00 00 45 89 cf RSP: 0018:ffffc900001b7690 EFLAGS: 00000246 RAX: 0000000000000001 RBX: 1ffff1100ee476b0 RCX: ffffffff88963417 RDX: 0000000000000000 RSI: 0000000000000048 RDI: ffff88807723b580 RBP: 0000000000000009 R08: dffffc0000000000 R09: ffffed100ee476b7 R10: fffffffffffffffe R11: dffffc0000000001 R12: 0000000000000048 R13: ffff88807723b580 R14: ffffed100ee476b9 R15: ffff88807723b6c0 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8551fad988 CR3: 0000000020378000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __asan_memcpy+0x29/0x70 mm/kasan/shadow.c:105 __copy_skb_header+0x437/0x5a0 net/core/skbuff.c:1347 skb_copy_header net/core/skbuff.c:1893 [inline] skb_copy+0x2bd/0x760 net/core/skbuff.c:1942 mac80211_hwsim_tx_frame_no_nl+0x1063/0x18c0 drivers/net/wireless/virtual/mac80211_hwsim.c:1835 mac80211_hwsim_tx_frame+0x1cc/0x220 drivers/net/wireless/virtual/mac80211_hwsim.c:2164 mac80211_hwsim_beacon_tx+0x3a5/0x750 drivers/net/wireless/virtual/mac80211_hwsim.c:2257 __iterate_interfaces+0x21e/0x4b0 net/mac80211/util.c:766 ieee80211_iterate_active_interfaces_atomic+0xb3/0x140 net/mac80211/util.c:802 mac80211_hwsim_beacon+0xd4/0x1e0 drivers/net/wireless/virtual/mac80211_hwsim.c:2283 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x59f/0xd10 kernel/time/hrtimer.c:1749 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1766 __do_softirq+0x2ab/0x908 kernel/softirq.c:571 run_ksoftirqd+0xc5/0x120 kernel/softirq.c:939 smpboot_thread_fn+0x533/0x9f0 kernel/smpboot.c:164 kthread+0x2b8/0x350 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308