INFO: task kworker/u4:5:76 blocked for more than 143 seconds.
      Not tainted 6.4.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:5    state:D stack:19840 pid:76    ppid:2      flags:0x00004000
Workqueue: writeback wb_workfn (flush-7:0)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5343 [inline]
 __schedule+0x187b/0x4900 kernel/sched/core.c:6669
 schedule+0xc3/0x180 kernel/sched/core.c:6745
 io_schedule+0x8c/0x100 kernel/sched/core.c:8979
 folio_wait_bit_common+0x86c/0x12b0 mm/filemap.c:1301
 folio_lock include/linux/pagemap.h:955 [inline]
 write_cache_pages+0x570/0x12b0 mm/page-writeback.c:2440
 do_writepages+0x412/0x670 mm/page-writeback.c:2556
 __writeback_single_inode+0x155/0xfa0 fs/fs-writeback.c:1603
 writeback_sb_inodes+0x8e3/0x11d0 fs/fs-writeback.c:1894
 __writeback_inodes_wb+0x11b/0x260 fs/fs-writeback.c:1965
 wb_writeback+0x46c/0xc70 fs/fs-writeback.c:2070
 wb_check_background_flush fs/fs-writeback.c:2136 [inline]
 wb_do_writeback fs/fs-writeback.c:2224 [inline]
 wb_workfn+0xc6f/0xff0 fs/fs-writeback.c:2251
 process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2408
 worker_thread+0xa63/0x1210 kernel/workqueue.c:2555
 kthread+0x2b8/0x350 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
INFO: task kworker/1:8:5123 blocked for more than 144 seconds.
      Not tainted 6.4.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:8     state:D stack:23392 pid:5123  ppid:2      flags:0x00004000
Workqueue: events_long flush_mdb
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5343 [inline]
 __schedule+0x187b/0x4900 kernel/sched/core.c:6669
 schedule+0xc3/0x180 kernel/sched/core.c:6745
 io_schedule+0x8c/0x100 kernel/sched/core.c:8979
 bit_wait_io+0x12/0xc0 kernel/sched/wait_bit.c:209
 __wait_on_bit_lock+0xbd/0x1a0 kernel/sched/wait_bit.c:90
 out_of_line_wait_on_bit_lock+0x1d4/0x250 kernel/sched/wait_bit.c:117
 lock_buffer include/linux/buffer_head.h:406 [inline]
 hfs_mdb_commit+0xaf9/0xfd0 fs/hfs/mdb.c:325
 process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2408
 worker_thread+0xa63/0x1210 kernel/workqueue.c:2555
 kthread+0x2b8/0x350 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
INFO: task syz-executor.0:9984 blocked for more than 145 seconds.
      Not tainted 6.4.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:24960 pid:9984  ppid:5039   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5343 [inline]
 __schedule+0x187b/0x4900 kernel/sched/core.c:6669
 schedule+0xc3/0x180 kernel/sched/core.c:6745
 io_schedule+0x8c/0x100 kernel/sched/core.c:8979
 folio_wait_bit_common+0x86c/0x12b0 mm/filemap.c:1301
 filemap_page_mkwrite+0x283/0x640 mm/filemap.c:3574
 do_page_mkwrite+0x1a4/0x600 mm/memory.c:2931
 wp_page_shared mm/memory.c:3280 [inline]
 do_wp_page+0x501/0x3690 mm/memory.c:3362
 handle_pte_fault mm/memory.c:4964 [inline]
 __handle_mm_fault mm/memory.c:5089 [inline]
 handle_mm_fault+0x2371/0x5860 mm/memory.c:5243
 do_user_addr_fault arch/x86/mm/fault.c:1440 [inline]
 handle_page_fault arch/x86/mm/fault.c:1534 [inline]
 exc_page_fault+0x7d2/0x910 arch/x86/mm/fault.c:1590
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7f60fa42bde9
RSP: 002b:00007ffe02cdc6b0 EFLAGS: 00010246
RAX: 0000000020000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00005555563652e8
RBP: 00007ffe02cdc7a8 R08: 0000000000000000 R09: 0000000000000000
R10: 00007f60fa020a10 R11: 0000000000041230 R12: 000000000015b62d
R13: 00007ffe02cdc7d0 R14: 00007ffe02cdc7f0 R15: 0000000000000032
 </TASK>
INFO: task syz-executor.0:9985 blocked for more than 146 seconds.
      Not tainted 6.4.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:22400 pid:9985  ppid:5039   flags:0x00004004
Call Trace:
 <TASK>
 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
 do_wait_for_common+0x449/0x5f0 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+0x4a/0x60 kernel/sched/completion.c:138
 __flush_work+0x130/0x1b0 kernel/workqueue.c:3192
 flush_work kernel/workqueue.c:3213 [inline]
 flush_delayed_work+0x14f/0x1a0 kernel/workqueue.c:3337
 hfs_file_fsync+0xed/0x140 fs/hfs/inode.c:683
 generic_write_sync include/linux/fs.h:2469 [inline]
 generic_file_write_iter+0x2a1/0x310 mm/filemap.c:4093
 call_write_iter include/linux/fs.h:1868 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x790/0xb20 fs/read_write.c:584
 ksys_write+0x1a0/0x2c0 fs/read_write.c:637
 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: 0033:0x7f60fa48c389
RSP: 002b:00007f60fb260168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f60fa5abf80 RCX: 00007f60fa48c389
RDX: 000000000000000b RSI: 0000000020000000 RDI: 0000000000000005
RBP: 00007f60fa4d7493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe02cdc66f R14: 00007f60fb260300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.0:9996 blocked for more than 147 seconds.
      Not tainted 6.4.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:25664 pid:9996  ppid:5039   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5343 [inline]
 __schedule+0x187b/0x4900 kernel/sched/core.c:6669
 schedule+0xc3/0x180 kernel/sched/core.c:6745
 io_schedule+0x8c/0x100 kernel/sched/core.c:8979
 bit_wait_io+0x12/0xc0 kernel/sched/wait_bit.c:209
 __wait_on_bit_lock+0xbd/0x1a0 kernel/sched/wait_bit.c:90
 out_of_line_wait_on_bit_lock+0x1d4/0x250 kernel/sched/wait_bit.c:117
 wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline]
 __lock_buffer fs/buffer.c:70 [inline]
 lock_buffer include/linux/buffer_head.h:406 [inline]
 __block_write_full_page+0x5b7/0x17d0 fs/buffer.c:1843
 writepage_cb+0x64/0x130 mm/page-writeback.c:2535
 write_cache_pages+0x89e/0x12b0 mm/page-writeback.c:2473
 do_writepages+0x412/0x670 mm/page-writeback.c:2556
 filemap_fdatawrite_wbc+0x125/0x180 mm/filemap.c:390
 __filemap_fdatawrite_range mm/filemap.c:423 [inline]
 filemap_write_and_wait_range+0x1d4/0x2c0 mm/filemap.c:678
 generic_file_direct_write+0x11f/0x460 mm/filemap.c:3829
 __generic_file_write_iter+0x1c8/0x400 mm/filemap.c:4013
 blkdev_write_iter+0x429/0x750 block/fops.c:549
 call_write_iter include/linux/fs.h:1868 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x790/0xb20 fs/read_write.c:584
 ksys_write+0x1a0/0x2c0 fs/read_write.c:637
 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: 0033:0x7f60fa48c389
RSP: 002b:00007f60fb23f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f60fa5ac050 RCX: 00007f60fa48c389
RDX: 0000000000000020 RSI: 0000000020000140 RDI: 0000000000000008
RBP: 00007f60fa4d7493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe02cdc66f R14: 00007f60fb23f300 R15: 0000000000022000
 </TASK>

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
 #0: ffffffff8cf276f0 (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: ffffffff8cf27ab0 (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: ffffffff8cf27520 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
3 locks held by kworker/u4:5/76:
 #0: ffff888012a94938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2381
 #1: ffffc900020ffd20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2383
 #2: ffff8880142760e0 (&type->s_umount_key#41){.+.+}-{3:3}, at: trylock_super+0x1f/0xf0 fs/super.c:414
2 locks held by getty/4753:
 #0: ffff888028ffc098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2176
2 locks held by kworker/1:8/5123:
 #0: ffff888012471538 ((wq_completion)events_long){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2381
 #1: ffffc90004effd20 ((work_completion)(&(&sbi->mdb_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2383
2 locks held by syz-executor.0/9984:
 #0: ffff888029a91c68 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:161 [inline]
 #0: ffff888029a91c68 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault arch/x86/mm/fault.c:1381 [inline]
 #0: ffff888029a91c68 (&mm->mmap_lock){++++}-{3:3}, at: handle_page_fault arch/x86/mm/fault.c:1534 [inline]
 #0: ffff888029a91c68 (&mm->mmap_lock){++++}-{3:3}, at: exc_page_fault+0x1b9/0x910 arch/x86/mm/fault.c:1590
 #1: ffff888014276558 (sb_pagefaults#3){.+.+}-{0:0}, at: do_page_mkwrite+0x1a4/0x600 mm/memory.c:2931
3 locks held by syz-executor.0/9985:
 #0: ffff88802c307c68 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x254/0x2f0 fs/file.c:1047
 #1: ffff88805c1ba460 (sb_writers#33){.+.+}-{0:0}, at: vfs_write+0x223/0xb20 fs/read_write.c:580
 #2: ffff8880207729a8 (&sb->s_type->i_mutex_key#37){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:775 [inline]
 #2: ffff8880207729a8 (&sb->s_type->i_mutex_key#37){+.+.}-{3:3}, at: hfs_file_fsync+0x98/0x140 fs/hfs/inode.c:676
3 locks held by syz-executor.2/11501:
2 locks held by syz-executor.5/11534:
2 locks held by syz-executor.1/11537:

=============================================

NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.4.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Call Trace:
 <TASK>
 __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
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 46 Comm: kworker/u4:3 Not tainted 6.4.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Workqueue: phy10 ieee80211_iface_work
RIP: 0010:__orc_find arch/x86/kernel/unwind_orc.c:53 [inline]
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:195 [inline]
RIP: 0010:unwind_next_frame+0x466/0x2200 arch/x86/kernel/unwind_orc.c:469
Code: df 0f 85 b7 00 00 00 e9 be 01 00 00 4d 89 f4 4d 89 f5 48 89 e8 4c 29 e8 48 89 c1 48 c1 f9 02 48 c1 e8 3f 48 01 c8 48 83 e0 fe <49> 8d 5c 45 00 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df
RSP: 0018:ffffc90000b771b0 EFLAGS: 00000202
RAX: 0000000000000002 RBX: ffffffff8e6c7a4c RCX: 0000000000000003
RDX: ffffffff8edc8240 RSI: 000000000009e001 RDI: ffffffff813cbcb0
RBP: ffffffff8e6c7a48 R08: 0000000000000009 R09: ffffc90000b77370
R10: ffffc90000b772d0 R11: dffffc0000000001 R12: ffffffff8e6c7a3c
R13: ffffffff8e6c7a3c R14: ffffffff8e6c7a3c R15: ffffffff81e3614a
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f36e12cb000 CR3: 000000000cd30000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 arch_stack_walk+0x111/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x117/0x1c0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4f/0x70 mm/kasan/common.c:52
 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:521
 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236
 kasan_slab_free include/linux/kasan.h:162 [inline]
 slab_free_hook mm/slub.c:1781 [inline]
 slab_free_freelist_hook mm/slub.c:1807 [inline]
 slab_free mm/slub.c:3786 [inline]
 __kmem_cache_free+0x264/0x3c0 mm/slub.c:3799
 ieee80211_bss_info_update+0xa4e/0xf00 net/mac80211/scan.c:223
 ieee80211_rx_bss_info net/mac80211/ibss.c:1120 [inline]
 ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1609 [inline]
 ieee80211_ibss_rx_queued_mgmt+0x192f/0x2cf0 net/mac80211/ibss.c:1638
 ieee80211_iface_process_skb net/mac80211/iface.c:1594 [inline]
 ieee80211_iface_work+0x7bd/0xd00 net/mac80211/iface.c:1648
 process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2408
 worker_thread+0xa63/0x1210 kernel/workqueue.c:2555
 kthread+0x2b8/0x350 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>