INFO: task kworker/1:16:4006 blocked for more than 143 seconds. Not tainted 5.15.158-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:16 state:D stack:22104 pid: 4006 ppid: 2 flags:0x00004000 Workqueue: events_long flush_mdb Call Trace: context_switch kernel/sched/core.c:5030 [inline] __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376 schedule+0x11b/0x1f0 kernel/sched/core.c:6459 io_schedule+0x88/0x100 kernel/sched/core.c:8484 bit_wait_io+0xe/0xc0 kernel/sched/wait_bit.c:209 __wait_on_bit_lock+0xbf/0x1a0 kernel/sched/wait_bit.c:90 out_of_line_wait_on_bit_lock+0x1d0/0x250 kernel/sched/wait_bit.c:117 lock_buffer include/linux/buffer_head.h:402 [inline] hfs_mdb_commit+0x117/0xfd0 fs/hfs/mdb.c:271 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300 INFO: task syz-executor.0:5196 blocked for more than 143 seconds. Not tainted 5.15.158-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:20696 pid: 5196 ppid: 1 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5030 [inline] __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376 schedule+0x11b/0x1f0 kernel/sched/core.c:6459 io_schedule+0x88/0x100 kernel/sched/core.c:8484 bit_wait_io+0xe/0xc0 kernel/sched/wait_bit.c:209 __wait_on_bit_lock+0xbf/0x1a0 kernel/sched/wait_bit.c:90 out_of_line_wait_on_bit_lock+0x1d0/0x250 kernel/sched/wait_bit.c:117 lock_buffer include/linux/buffer_head.h:402 [inline] hfs_mdb_commit+0xafb/0xfd0 fs/hfs/mdb.c:325 hfs_sync_fs+0x11/0x20 fs/hfs/super.c:35 sync_filesystem+0xe8/0x220 fs/sync.c:56 generic_shutdown_super+0x6e/0x2c0 fs/super.c:448 kill_block_super+0x7a/0xe0 fs/super.c:1414 deactivate_locked_super+0xa0/0x110 fs/super.c:335 cleanup_mnt+0x44e/0x500 fs/namespace.c:1143 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:181 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f91dae3d097 RSP: 002b:00007ffcfc5d3248 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000064 RCX: 00007f91dae3d097 RDX: 0000000000000200 RSI: 0000000000000009 RDI: 00007ffcfc5d43f0 RBP: 00007f91dae87336 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffcfc5d43f0 R13: 00007f91dae87336 R14: 0000555555845430 R15: 000000000000001d Showing all locks held in the system: 1 lock held by khungtaskd/27: #0: ffffffff8c91fae0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 2 locks held by getty/3271: #0: ffff88814b233098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252 #1: ffffc90002bab2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158 4 locks held by kworker/1:5/3561: #0: ffff8880b9b3a358 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:475 #1: ffff8880b9b27848 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x53d/0x810 kernel/sched/psi.c:891 #2: ffff8880b9b28098 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x120/0x260 kernel/time/timer.c:946 #3: ffffffff91606ae8 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x63/0x4e0 lib/debugobjects.c:693 2 locks held by kworker/1:16/4006: #0: ffff888011c71138 ((wq_completion)events_long){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283 #1: ffffc90004b27d20 ((work_completion)(&(&sbi->mdb_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285 1 lock held by syz-executor.0/5196: #0: ffff88807caca0e0 (&type->s_umount_key#106){+.+.}-{3:3}, at: deactivate_super+0xa9/0xe0 fs/super.c:365 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.158-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2d0 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:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 144 Comm: kworker/u4:1 Not tainted 5.15.158-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Workqueue: phy31 ieee80211_iface_work RIP: 0010:kasan_set_free_info+0x1/0x40 mm/kasan/generic.c:353 Code: ff ff eb e2 40 f6 c7 01 75 05 48 89 cf eb 03 48 ff cf 48 c7 c6 5b 59 16 8c e8 bb 7f ec ff 0f 0b 66 0f 1f 84 00 00 00 00 00 53 <48> 89 f3 e8 17 dd ff ff 48 85 c0 74 23 48 83 c0 08 48 89 c7 be 00 RSP: 0018:ffffc900010bf8c8 EFLAGS: 00000246 RAX: ffffed10033a1a00 RBX: ffff888019d0d000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff888019d0d000 RDI: ffff888011c41dc0 RBP: 0000000000000800 R08: dffffc0000000000 R09: ffffed10033a1a00 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: ffffffff81c996b1 R14: ffff888011c41dc0 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000563f42f91408 CR3: 00000000155d0000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ____kasan_slab_free+0xd8/0x120 mm/kasan/common.c:366 kasan_slab_free include/linux/kasan.h:230 [inline] slab_free_hook mm/slub.c:1705 [inline] slab_free_freelist_hook+0xdd/0x160 mm/slub.c:1731 slab_free mm/slub.c:3499 [inline] kfree+0xf1/0x270 mm/slub.c:4559 ieee80211_ibss_rx_queued_mgmt+0x192b/0x2af0 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:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300