INFO: task kworker/0:0:8 blocked for more than 143 seconds.
      Not tainted 6.12.0-syzkaller-01518-ga5c93bfec0be #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:0     state:D stack:21936 pid:8     tgid:8     ppid:2      flags:0x00004000
Workqueue: events request_firmware_work_func
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0xe5a/0x5ae0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6848
 io_schedule+0xbf/0x130 kernel/sched/core.c:7681
 bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:247
 __wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49
 out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64
 wait_on_bit_io include/linux/wait_bit.h:105 [inline]
 __wait_on_buffer+0x64/0x70 fs/buffer.c:123
 wait_on_buffer include/linux/buffer_head.h:414 [inline]
 __ext4_find_entry+0x976/0x1090 fs/ext4/namei.c:1637
 ext4_lookup_entry fs/ext4/namei.c:1729 [inline]
 ext4_lookup+0x53f/0x730 fs/ext4/namei.c:1797
 lookup_open.isra.0+0x92d/0x14c0 fs/namei.c:3627
 open_last_lookups fs/namei.c:3748 [inline]
 path_openat+0x904/0x2d60 fs/namei.c:3984
 do_file_open_root+0x323/0x610 fs/namei.c:4039
 file_open_root+0x2a8/0x450 fs/open.c:1378
 kernel_read_file_from_path_initns+0x18a/0x260 fs/kernel_read_file.c:163
 fw_get_filesystem_firmware drivers/base/firmware_loader/main.c:549 [inline]
 _request_firmware+0x6e6/0x13d0 drivers/base/firmware_loader/main.c:917
 request_firmware_work_func+0xeb/0x250 drivers/base/firmware_loader/main.c:1195
 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
 process_scheduled_works kernel/workqueue.c:3310 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
INFO: task syz-executor:5821 blocked for more than 143 seconds.
      Not tainted 6.12.0-syzkaller-01518-ga5c93bfec0be #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:23664 pid:5821  tgid:5821  ppid:5819   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0xe5a/0x5ae0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6848
 io_schedule+0xbf/0x130 kernel/sched/core.c:7681
 bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:247
 __wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49
 out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64
 wait_on_bit_io include/linux/wait_bit.h:105 [inline]
 do_get_write_access+0x933/0x1270 fs/jbd2/transaction.c:1096
 jbd2_journal_get_write_access+0x1d6/0x280 fs/jbd2/transaction.c:1245
 __ext4_journal_get_write_access+0x6a/0x390 fs/ext4/ext4_jbd2.c:239
 ext4_reserve_inode_write+0x13b/0x270 fs/ext4/inode.c:5830
 __ext4_mark_inode_dirty+0x1a6/0x890 fs/ext4/inode.c:6004
 ext4_dirty_inode+0xd9/0x130 fs/ext4/inode.c:6041
 __mark_inode_dirty+0x1f6/0xe60 fs/fs-writeback.c:2515
 generic_update_time+0xcf/0xf0 fs/inode.c:2113
 inode_update_time fs/inode.c:2126 [inline]
 __file_update_time fs/inode.c:2354 [inline]
 file_update_time+0x17d/0x1c0 fs/inode.c:2384
 ext4_page_mkwrite+0x368/0x1760 fs/ext4/inode.c:6159
 do_page_mkwrite+0x177/0x380 mm/memory.c:3162
 wp_page_shared mm/memory.c:3563 [inline]
 do_wp_page+0xcbf/0x49d0 mm/memory.c:3713
 handle_pte_fault mm/memory.c:5782 [inline]
 __handle_mm_fault+0x1a93/0x2a10 mm/memory.c:5909
 handle_mm_fault+0x3fa/0xaa0 mm/memory.c:6077
 do_user_addr_fault+0x60d/0x13f0 arch/x86/mm/fault.c:1338
 handle_page_fault arch/x86/mm/fault.c:1481 [inline]
 exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1539
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7fb2272563f5
RSP: 002b:00007ffe23c34f60 EFLAGS: 00010202
RAX: 00007fb2231fffcc RBX: 00007ffe23c35070 RCX: 0000000000000000
RDX: 00007fb2231fffc8 RSI: 0000000000000008 RDI: 00007ffe23c35070
RBP: 00000000000003e6 R08: 0000000000000000 R09: 0000000000000000
R10: 00007ffe23c35050 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000034 R14: ffffffffffffffcc R15: 0000000000000034
 </TASK>
INFO: task kworker/1:6:23197 blocked for more than 144 seconds.
      Not tainted 6.12.0-syzkaller-01518-ga5c93bfec0be #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:6     state:D stack:22528 pid:23197 tgid:23197 ppid:2      flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0xe5a/0x5ae0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6848
 schedule_timeout+0x258/0x2a0 kernel/time/timer.c:2591
 do_wait_for_common kernel/sched/completion.c:95 [inline]
 __wait_for_common+0x3e1/0x600 kernel/sched/completion.c:116
 ath9k_hif_usb_disconnect+0xf7/0x3f0 drivers/net/wireless/ath/ath9k/hif_usb.c:1438
 usb_unbind_interface+0x1e8/0x970 drivers/usb/core/driver.c:461
 device_remove drivers/base/dd.c:569 [inline]
 device_remove+0x122/0x170 drivers/base/dd.c:561
 __device_release_driver drivers/base/dd.c:1273 [inline]
 device_release_driver_internal+0x44a/0x610 drivers/base/dd.c:1296
 bus_remove_device+0x22f/0x420 drivers/base/bus.c:576
 device_del+0x396/0x9f0 drivers/base/core.c:3861
 usb_disable_device+0x36c/0x7f0 drivers/usb/core/message.c:1418
 usb_disconnect+0x2e1/0x920 drivers/usb/core/hub.c:2304
 hub_port_connect drivers/usb/core/hub.c:5361 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
 port_event drivers/usb/core/hub.c:5821 [inline]
 hub_event+0x1da5/0x4e10 drivers/usb/core/hub.c:5903
 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
 process_scheduled_works kernel/workqueue.c:3310 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
INFO: task syz.0.5685:30558 blocked for more than 144 seconds.
      Not tainted 6.12.0-syzkaller-01518-ga5c93bfec0be #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.5685      state:D stack:27120 pid:30558 tgid:30558 ppid:18443  flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0xe5a/0x5ae0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6848
 io_schedule+0xbf/0x130 kernel/sched/core.c:7681
 bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:247
 __wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49
 out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64
 wait_on_bit_io include/linux/wait_bit.h:105 [inline]
 do_get_write_access+0x933/0x1270 fs/jbd2/transaction.c:1096
 jbd2_journal_get_write_access+0x1d6/0x280 fs/jbd2/transaction.c:1245
 __ext4_journal_get_write_access+0x6a/0x390 fs/ext4/ext4_jbd2.c:239
 ext4_reserve_inode_write+0x13b/0x270 fs/ext4/inode.c:5830
 __ext4_mark_inode_dirty+0x1a6/0x890 fs/ext4/inode.c:6004
 ext4_dirty_inode+0xd9/0x130 fs/ext4/inode.c:6041
 __mark_inode_dirty+0x1f6/0xe60 fs/fs-writeback.c:2515
 generic_update_time+0xcf/0xf0 fs/inode.c:2113
 inode_update_time fs/inode.c:2126 [inline]
 __file_update_time fs/inode.c:2354 [inline]
 file_update_time+0x17d/0x1c0 fs/inode.c:2384
 ext4_page_mkwrite+0x368/0x1760 fs/ext4/inode.c:6159
 do_page_mkwrite+0x177/0x380 mm/memory.c:3162
 do_shared_fault mm/memory.c:5373 [inline]
 do_fault mm/memory.c:5435 [inline]
 do_pte_missing+0x29e/0x3e70 mm/memory.c:3965
 handle_pte_fault mm/memory.c:5766 [inline]
 __handle_mm_fault+0x100a/0x2a10 mm/memory.c:5909
 handle_mm_fault+0x3fa/0xaa0 mm/memory.c:6077
 do_user_addr_fault+0x60d/0x13f0 arch/x86/mm/fault.c:1338
 handle_page_fault arch/x86/mm/fault.c:1481 [inline]
 exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1539
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7ffb9145cd06
RSP: 002b:00007ffc2694ded0 EFLAGS: 00010202
RAX: 0000001b2c51f000 RBX: 00007ffb92265720 RCX: 0000001b2c51eff8
RDX: ffffffff81334f99 RSI: 0000000000000008 RDI: 00007ffb92265720
RBP: 00000000000001ec R08: 00007ffb91720000 R09: 00007ffb91722000
R10: 0000000081334f9d R11: 0000000000000005 R12: ffffffff813344dd
R13: 00007ffb91736018 R14: 0000000000000008 R15: 0000000000001ae0
 </TASK>
INFO: task syz.5.5688:30566 blocked for more than 144 seconds.
      Not tainted 6.12.0-syzkaller-01518-ga5c93bfec0be #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.5.5688      state:D stack:27200 pid:30566 tgid:30566 ppid:19043  flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0xe5a/0x5ae0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6848
 io_schedule+0xbf/0x130 kernel/sched/core.c:7681
 bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:247
 __wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49
 out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64
 wait_on_bit_io include/linux/wait_bit.h:105 [inline]
 do_get_write_access+0x933/0x1270 fs/jbd2/transaction.c:1096
 jbd2_journal_get_write_access+0x1d6/0x280 fs/jbd2/transaction.c:1245
 __ext4_journal_get_write_access+0x6a/0x390 fs/ext4/ext4_jbd2.c:239
 ext4_reserve_inode_write+0x13b/0x270 fs/ext4/inode.c:5830
 __ext4_mark_inode_dirty+0x1a6/0x890 fs/ext4/inode.c:6004
 ext4_dirty_inode+0xd9/0x130 fs/ext4/inode.c:6041
 __mark_inode_dirty+0x1f6/0xe60 fs/fs-writeback.c:2515
 generic_update_time+0xcf/0xf0 fs/inode.c:2113
 inode_update_time fs/inode.c:2126 [inline]
 __file_update_time fs/inode.c:2354 [inline]
 file_update_time+0x17d/0x1c0 fs/inode.c:2384
 ext4_page_mkwrite+0x368/0x1760 fs/ext4/inode.c:6159
 do_page_mkwrite+0x177/0x380 mm/memory.c:3162
 do_shared_fault mm/memory.c:5373 [inline]
 do_fault mm/memory.c:5435 [inline]
 do_pte_missing+0x29e/0x3e70 mm/memory.c:3965
 handle_pte_fault mm/memory.c:5766 [inline]
 __handle_mm_fault+0x100a/0x2a10 mm/memory.c:5909
 handle_mm_fault+0x3fa/0xaa0 mm/memory.c:6077
 do_user_addr_fault+0x60d/0x13f0 arch/x86/mm/fault.c:1338
 handle_page_fault arch/x86/mm/fault.c:1481 [inline]
 exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1539
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7fd910e5cc66
RSP: 002b:00007ffdfe195a20 EFLAGS: 00010202
RAX: 0000001b31620000 RBX: 00007fd911c65720 RCX: 0000001b31220210
RDX: 0000001b3161fffc RSI: 00000000003ffdf0 RDI: 00007fd911c65700
RBP: 0000000000000000 R08: 00007fd911120000 R09: 00007fd911122000
R10: 00007fd911c65700 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000014238
 </TASK>
INFO: task syz.1.5690:30570 blocked for more than 145 seconds.
      Not tainted 6.12.0-syzkaller-01518-ga5c93bfec0be #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.5690      state:D stack:27920 pid:30570 tgid:30570 ppid:19017  flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0xe5a/0x5ae0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6848
 io_schedule+0xbf/0x130 kernel/sched/core.c:7681
 bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:247
 __wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49
 out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64
 wait_on_bit_io include/linux/wait_bit.h:105 [inline]
 do_get_write_access+0x933/0x1270 fs/jbd2/transaction.c:1096
 jbd2_journal_get_write_access+0x1d6/0x280 fs/jbd2/transaction.c:1245
 __ext4_journal_get_write_access+0x6a/0x390 fs/ext4/ext4_jbd2.c:239
 ext4_reserve_inode_write+0x13b/0x270 fs/ext4/inode.c:5830
 __ext4_mark_inode_dirty+0x1a6/0x890 fs/ext4/inode.c:6004
 ext4_dirty_inode+0xd9/0x130 fs/ext4/inode.c:6041
 __mark_inode_dirty+0x1f6/0xe60 fs/fs-writeback.c:2515
 generic_update_time+0xcf/0xf0 fs/inode.c:2113
 inode_update_time fs/inode.c:2126 [inline]
 __file_update_time fs/inode.c:2354 [inline]
 file_update_time+0x17d/0x1c0 fs/inode.c:2384
 ext4_page_mkwrite+0x368/0x1760 fs/ext4/inode.c:6159
 do_page_mkwrite+0x177/0x380 mm/memory.c:3162
 do_shared_fault mm/memory.c:5373 [inline]
 do_fault mm/memory.c:5435 [inline]
 do_pte_missing+0x29e/0x3e70 mm/memory.c:3965
 handle_pte_fault mm/memory.c:5766 [inline]
 __handle_mm_fault+0x100a/0x2a10 mm/memory.c:5909
 handle_mm_fault+0x3fa/0xaa0 mm/memory.c:6077
 do_user_addr_fault+0x60d/0x13f0 arch/x86/mm/fault.c:1338
 handle_page_fault arch/x86/mm/fault.c:1481 [inline]
 exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1539
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7fb687651ba4
RSP: 002b:00007ffceb4dfde0 EFLAGS: 00010246
RAX: 00000000003ffdf0 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000001b2fc20000 RSI: 0000000000400000 RDI: 00007fb687872290
RBP: 00007ffceb4e003c R08: 0000000000000004 R09: 0000000000040000
R10: 0000000000000011 R11: 0000000000000293 R12: 0000000000000032
R13: 0000000000165257 R14: 0000000000165138 R15: 00007ffceb4e0090
 </TASK>

Showing all locks held in the system:
3 locks held by kworker/0:0/8:
 #0: ffff88801b078948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
 #1: ffffc900000d7d80 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
 #2: ffff88805d365338 (&type->i_mutex_dir_key#3){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:828 [inline]
 #2: ffff88805d365338 (&type->i_mutex_dir_key#3){++++}-{4:4}, at: open_last_lookups fs/namei.c:3747 [inline]
 #2: ffff88805d365338 (&type->i_mutex_dir_key#3){++++}-{4:4}, at: path_openat+0x88a/0x2d60 fs/namei.c:3984
1 lock held by khungtaskd/30:
 #0: ffffffff8e1b8f00 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
 #0: ffffffff8e1b8f00 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffffffff8e1b8f00 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x7f/0x390 kernel/locking/lockdep.c:6744
6 locks held by kworker/u8:4/61:
 #0: ffff888020ac4948 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
 #1: ffffc900015c7d80 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
 #2: ffff88814e1da0e0 (&type->s_umount_key#52){++++}-{4:4}, at: super_trylock_shared+0x1e/0xf0 fs/super.c:562
 #3: ffff88814e1dcb98 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: do_writepages+0x1b3/0x820 mm/page-writeback.c:2683
 #4: ffff88814e1de958 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xf6c/0x1430 fs/jbd2/transaction.c:448
 #5: ffff888078385bb0 (&ei->i_data_sem){++++}-{4:4}, at: ext4_map_blocks+0x352/0x1370 fs/ext4/inode.c:701
2 locks held by getty/5592:
 #0: ffff88803251a0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
 #1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0xfba/0x1480 drivers/tty/n_tty.c:2211
3 locks held by syz-executor/5821:
 #0: ffff88803200d658 (&vma->vm_lock->lock){++++}-{4:4}, at: vma_start_read include/linux/mm.h:716 [inline]
 #0: ffff88803200d658 (&vma->vm_lock->lock){++++}-{4:4}, at: lock_vma_under_rcu+0x13e/0x980 mm/memory.c:6243
 #1: ffff88814e1da518 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x177/0x380 mm/memory.c:3162
 #2: ffff88814e1de958 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xf6c/0x1430 fs/jbd2/transaction.c:448
5 locks held by kworker/1:6/23197:
 #0: ffff8881442bf548 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
 #1: ffffc9000c9afd80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
 #2: ffff888144bde190 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline]
 #2: ffff888144bde190 (&dev->mutex){....}-{4:4}, at: hub_event+0x1c1/0x4e10 drivers/usb/core/hub.c:5849
 #3: ffff888028866190 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline]
 #3: ffff888028866190 (&dev->mutex){....}-{4:4}, at: usb_disconnect+0x10a/0x920 drivers/usb/core/hub.c:2295
 #4: ffff88804c495160 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline]
 #4: ffff88804c495160 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1095 [inline]
 #4: ffff88804c495160 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0xa4/0x610 drivers/base/dd.c:1293
3 locks held by syz.0.5685/30558:
 #0: ffff888034f879b8 (&vma->vm_lock->lock){++++}-{4:4}, at: vma_start_read include/linux/mm.h:716 [inline]
 #0: ffff888034f879b8 (&vma->vm_lock->lock){++++}-{4:4}, at: lock_vma_under_rcu+0x13e/0x980 mm/memory.c:6243
 #1: ffff88814e1da518 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x177/0x380 mm/memory.c:3162
 #2: ffff88814e1de958 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xf6c/0x1430 fs/jbd2/transaction.c:448
3 locks held by syz.5.5688/30566:
 #0: ffff88805ae7d148 (&vma->vm_lock->lock){++++}-{4:4}, at: vma_start_read include/linux/mm.h:716 [inline]
 #0: ffff88805ae7d148 (&vma->vm_lock->lock){++++}-{4:4}, at: lock_vma_under_rcu+0x13e/0x980 mm/memory.c:6243
 #1: ffff88814e1da518 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x177/0x380 mm/memory.c:3162
 #2: ffff88814e1de958 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xf6c/0x1430 fs/jbd2/transaction.c:448
3 locks held by syz.1.5690/30570:
 #0: ffff88803702c4a8 (&vma->vm_lock->lock){++++}-{4:4}, at: vma_start_read include/linux/mm.h:716 [inline]
 #0: ffff88803702c4a8 (&vma->vm_lock->lock){++++}-{4:4}, at: lock_vma_under_rcu+0x13e/0x980 mm/memory.c:6243
 #1: ffff88814e1da518 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x177/0x380 mm/memory.c:3162
 #2: ffff88814e1de958 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xf6c/0x1430 fs/jbd2/transaction.c:448

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-syzkaller-01518-ga5c93bfec0be #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
 watchdog+0xf0c/0x1240 kernel/hung_task.c:379
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 1093 Comm: kworker/u8:6 Not tainted 6.12.0-syzkaller-01518-ga5c93bfec0be #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Workqueue: bat_events batadv_nc_worker
RIP: 0010:hlock_class+0x29/0x130 kernel/locking/lockdep.c:223
Code: 90 48 b8 00 00 00 00 00 fc ff df 53 48 89 fb 48 83 c7 20 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e da 00 00 00 <0f> b7 5b 20 66 81 e3 ff 1f 0f b7 db be 08 00 00 00 48 89 d8 48 c1
RSP: 0018:ffffc90004207948 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffff888027d40b30 RCX: ffffffff8169c30e
RDX: 1ffff11004fa816a RSI: 0000000000000008 RDI: ffff888027d40b50
RBP: ffffffff96ea1c78 R08: 0000000000000000 R09: fffffbfff2dc89b5
R10: ffffffff96e44daf R11: 0000000000000002 R12: ffffed1004fa815b
R13: ffff888027d40000 R14: 0000000000000005 R15: ffff888027d40b30
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055eb3ccb63e8 CR3: 000000003694a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 __lock_acquire+0xcc5/0x3c40 kernel/locking/lockdep.c:5223
 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849
 rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
 rcu_read_lock include/linux/rcupdate.h:849 [inline]
 batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
 batadv_nc_worker+0x16a/0x1060 net/batman-adv/network-coding.c:719
 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
 process_scheduled_works kernel/workqueue.c:3310 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>