INFO: task jbd2/nvme0n1p2-:3906 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jbd2/nvme0n1p2- state:D stack:0     pid:3906  ppid:2      flags:0x00000008
Call trace:
 __switch_to+0x2f4/0x550 arch/arm64/kernel/process.c:555
 context_switch kernel/sched/core.c:5257 [inline]
 __schedule+0xdb4/0x1aa4 kernel/sched/core.c:6584
 schedule+0xc4/0x170 kernel/sched/core.c:6660
 __bio_queue_enter+0x238/0x56c block/blk-core.c:339
 bio_queue_enter block/blk.h:76 [inline]
 blk_mq_submit_bio+0x5e8/0x1c28 block/blk-mq.c:3006
 __submit_bio+0x1d8/0x260 block/blk-core.c:592
 __submit_bio_noacct_mq block/blk-core.c:669 [inline]
 submit_bio_noacct_nocheck+0x65c/0xa1c block/blk-core.c:698
 submit_bio_noacct+0xc5c/0x1660 block/blk-core.c:809
 submit_bio+0x29c/0x3d0 block/blk-core.c:854
 submit_bh_wbc+0x394/0x44c fs/buffer.c:2702
 submit_bh+0x2c/0x3c fs/buffer.c:2707
 jbd2_journal_commit_transaction+0x1ddc/0x5680 fs/jbd2/commit.c:765
 kjournald2+0x370/0x6a4 fs/jbd2/journal.c:210
 kthread+0x254/0x2e0 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854
INFO: task kworker/u4:52:5142 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:52   state:D stack:0     pid:5142  ppid:2      flags:0x00000008
Workqueue: writeback wb_workfn (flush-259:0)
Call trace:
 __switch_to+0x2f4/0x550 arch/arm64/kernel/process.c:555
 context_switch kernel/sched/core.c:5257 [inline]
 __schedule+0xdb4/0x1aa4 kernel/sched/core.c:6584
 schedule+0xc4/0x170 kernel/sched/core.c:6660
 __bio_queue_enter+0x238/0x56c block/blk-core.c:339
 bio_queue_enter block/blk.h:76 [inline]
 blk_mq_submit_bio+0x5e8/0x1c28 block/blk-mq.c:3006
 __submit_bio+0x1d8/0x260 block/blk-core.c:592
 __submit_bio_noacct_mq block/blk-core.c:669 [inline]
 submit_bio_noacct_nocheck+0x65c/0xa1c block/blk-core.c:698
 submit_bio_noacct+0xc5c/0x1660 block/blk-core.c:809
 submit_bio+0x29c/0x3d0 block/blk-core.c:854
 ext4_io_submit+0xe0/0x144 fs/ext4/page-io.c:378
 ext4_writepages+0xde0/0x29f0 fs/ext4/inode.c:2879
 do_writepages+0x2c4/0x50c mm/page-writeback.c:2491
 __writeback_single_inode+0x164/0x157c fs/fs-writeback.c:1688
 writeback_sb_inodes+0x870/0x1470 fs/fs-writeback.c:1979
 __writeback_inodes_wb+0x104/0x370 fs/fs-writeback.c:2050
 wb_writeback+0x420/0xfdc fs/fs-writeback.c:2155
 wb_check_old_data_flush fs/fs-writeback.c:2255 [inline]
 wb_do_writeback fs/fs-writeback.c:2308 [inline]
 wb_workfn+0xab4/0xe18 fs/fs-writeback.c:2336
 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292
 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439
 kthread+0x254/0x2e0 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854
INFO: task syz.1.450:6031 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.450       state:D stack:0     pid:6031  ppid:4330   flags:0x00000001
Call trace:
 __switch_to+0x2f4/0x550 arch/arm64/kernel/process.c:555
 context_switch kernel/sched/core.c:5257 [inline]
 __schedule+0xdb4/0x1aa4 kernel/sched/core.c:6584
 schedule+0xc4/0x170 kernel/sched/core.c:6660
 blk_mq_freeze_queue_wait+0xe8/0x170 block/blk-mq.c:181
 nvme_wait_freeze drivers/nvme/host/core.c:5410 [inline]
 nvme_passthru_start drivers/nvme/host/core.c:1152 [inline]
 nvme_execute_passthru_rq+0x394/0x578 drivers/nvme/host/core.c:1204
 nvme_submit_user_cmd+0x258/0x400 drivers/nvme/host/ioctl.c:179
 nvme_user_cmd64+0x34c/0x560 drivers/nvme/host/ioctl.c:353
 nvme_dev_ioctl+0xb0/0x3a0 drivers/nvme/host/ioctl.c:909
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x12c arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:589
INFO: task syz-executor:6041 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:0     pid:6041  ppid:6038   flags:0x00000000
Call trace:
 __switch_to+0x2f4/0x550 arch/arm64/kernel/process.c:555
 context_switch kernel/sched/core.c:5257 [inline]
 __schedule+0xdb4/0x1aa4 kernel/sched/core.c:6584
 schedule+0xc4/0x170 kernel/sched/core.c:6660
 io_schedule+0x84/0x154 kernel/sched/core.c:8848
 bit_wait_io+0x1c/0xe8 kernel/sched/wait_bit.c:209
 __wait_on_bit kernel/sched/wait_bit.c:49 [inline]
 out_of_line_wait_on_bit+0x168/0x208 kernel/sched/wait_bit.c:64
 wait_on_bit_io include/linux/wait_bit.h:101 [inline]
 do_get_write_access+0x504/0xe4c fs/jbd2/transaction.c:1115
 jbd2_journal_get_write_access+0x11c/0x14c fs/jbd2/transaction.c:1250
 __ext4_journal_get_write_access+0x1f8/0x5f8 fs/ext4/ext4_jbd2.c:235
 __ext4_new_inode+0xfa4/0x3560 fs/ext4/ialloc.c:1101
 ext4_mkdir+0x308/0xa28 fs/ext4/namei.c:3068
 vfs_mkdir+0x314/0x4d8 fs/namei.c:4161
 do_mkdirat+0x1b8/0x3ec fs/namei.c:4186
 __do_sys_mkdirat fs/namei.c:4201 [inline]
 __se_sys_mkdirat fs/namei.c:4199 [inline]
 __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4199
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x12c arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:589
INFO: task modprobe:6289 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:modprobe        state:D stack:0     pid:6289  ppid:11     flags:0x00000000
Call trace:
 __switch_to+0x2f4/0x550 arch/arm64/kernel/process.c:555
 context_switch kernel/sched/core.c:5257 [inline]
 __schedule+0xdb4/0x1aa4 kernel/sched/core.c:6584
 schedule+0xc4/0x170 kernel/sched/core.c:6660
 io_schedule+0x84/0x154 kernel/sched/core.c:8848
 bit_wait_io+0x1c/0xe8 kernel/sched/wait_bit.c:209
 __wait_on_bit kernel/sched/wait_bit.c:49 [inline]
 out_of_line_wait_on_bit+0x168/0x208 kernel/sched/wait_bit.c:64
 wait_on_bit_io include/linux/wait_bit.h:101 [inline]
 do_get_write_access+0x504/0xe4c fs/jbd2/transaction.c:1115
 jbd2_journal_get_write_access+0x11c/0x14c fs/jbd2/transaction.c:1250
 __ext4_journal_get_write_access+0x1f8/0x5f8 fs/ext4/ext4_jbd2.c:235
 ext4_reserve_inode_write+0x1e4/0x264 fs/ext4/inode.c:5978
 __ext4_mark_inode_dirty+0x190/0x7e8 fs/ext4/inode.c:6162
 ext4_dirty_inode+0xd4/0x110 fs/ext4/inode.c:6199
 __mark_inode_dirty+0x2e8/0x11cc fs/fs-writeback.c:2515
 generic_update_time fs/inode.c:1944 [inline]
 inode_update_time fs/inode.c:1957 [inline]
 touch_atime+0x410/0x7dc fs/inode.c:2029
 file_accessed include/linux/fs.h:2606 [inline]
 filemap_read+0x1ec4/0x20dc mm/filemap.c:2836
 generic_file_read_iter+0xf8/0x5ac mm/filemap.c:2941
 ext4_file_read_iter+0x360/0x4cc fs/ext4/file.c:-1
 call_read_iter include/linux/fs.h:2265 [inline]
 new_sync_read fs/read_write.c:389 [inline]
 vfs_read+0x3cc/0x7b8 fs/read_write.c:470
 ksys_read+0x12c/0x228 fs/read_write.c:613
 __do_sys_read fs/read_write.c:623 [inline]
 __se_sys_read fs/read_write.c:621 [inline]
 __arm64_sys_read+0x7c/0x90 fs/read_write.c:621
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x12c arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:589
INFO: task syz.5.503:6291 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.5.503       state:D stack:0     pid:6291  ppid:4761   flags:0x00000009
Call trace:
 __switch_to+0x2f4/0x550 arch/arm64/kernel/process.c:555
 context_switch kernel/sched/core.c:5257 [inline]
 __schedule+0xdb4/0x1aa4 kernel/sched/core.c:6584
 schedule+0xc4/0x170 kernel/sched/core.c:6660
 io_schedule+0x84/0x154 kernel/sched/core.c:8848
 bit_wait_io+0x1c/0xe8 kernel/sched/wait_bit.c:209
 __wait_on_bit kernel/sched/wait_bit.c:49 [inline]
 out_of_line_wait_on_bit+0x168/0x208 kernel/sched/wait_bit.c:64
 wait_on_bit_io include/linux/wait_bit.h:101 [inline]
 do_get_write_access+0x504/0xe4c fs/jbd2/transaction.c:1115
 jbd2_journal_get_write_access+0x11c/0x14c fs/jbd2/transaction.c:1250
 __ext4_journal_get_write_access+0x1f8/0x5f8 fs/ext4/ext4_jbd2.c:235
 ext4_reserve_inode_write+0x1e4/0x264 fs/ext4/inode.c:5978
 __ext4_mark_inode_dirty+0x190/0x7e8 fs/ext4/inode.c:6162
 ext4_dirty_inode+0xd4/0x110 fs/ext4/inode.c:6199
 __mark_inode_dirty+0x2e8/0x11cc fs/fs-writeback.c:2515
 generic_update_time fs/inode.c:1944 [inline]
 inode_update_time fs/inode.c:1957 [inline]
 __file_update_time+0x1f8/0x220 fs/inode.c:2145
 file_update_time+0x270/0x2ec fs/inode.c:2176
 ext4_page_mkwrite+0x180/0x10b0 fs/ext4/inode.c:6317
 do_page_mkwrite+0x140/0x35c mm/memory.c:3009
 do_shared_fault mm/memory.c:4694 [inline]
 do_fault mm/memory.c:4762 [inline]
 handle_pte_fault mm/memory.c:5029 [inline]
 __handle_mm_fault mm/memory.c:5171 [inline]
 handle_mm_fault+0x1404/0x3018 mm/memory.c:5292
 __do_page_fault arch/arm64/mm/fault.c:506 [inline]
 do_page_fault+0x310/0xa5c arch/arm64/mm/fault.c:590
 do_translation_fault+0x94/0xc8 arch/arm64/mm/fault.c:674
 do_mem_abort+0x70/0x198 arch/arm64/mm/fault.c:811
 el0_da+0x74/0x14c arch/arm64/kernel/entry-common.c:515
 el0t_64_sync_handler+0x90/0xf0 arch/arm64/kernel/entry-common.c:658
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:589
INFO: task udevd:6292 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D stack:0     pid:6292  ppid:5192   flags:0x0000000c
Call trace:
 __switch_to+0x2f4/0x550 arch/arm64/kernel/process.c:555
 context_switch kernel/sched/core.c:5257 [inline]
 __schedule+0xdb4/0x1aa4 kernel/sched/core.c:6584
 schedule+0xc4/0x170 kernel/sched/core.c:6660
 io_schedule+0x84/0x154 kernel/sched/core.c:8848
 bit_wait_io+0x1c/0xe8 kernel/sched/wait_bit.c:209
 __wait_on_bit kernel/sched/wait_bit.c:49 [inline]
 out_of_line_wait_on_bit+0x168/0x208 kernel/sched/wait_bit.c:64
 wait_on_bit_io include/linux/wait_bit.h:101 [inline]
 do_get_write_access+0x504/0xe4c fs/jbd2/transaction.c:1115
 jbd2_journal_get_write_access+0x11c/0x14c fs/jbd2/transaction.c:1250
 __ext4_journal_get_write_access+0x1f8/0x5f8 fs/ext4/ext4_jbd2.c:235
 ext4_reserve_inode_write+0x1e4/0x264 fs/ext4/inode.c:5978
 __ext4_mark_inode_dirty+0x190/0x7e8 fs/ext4/inode.c:6162
 ext4_dirty_inode+0xd4/0x110 fs/ext4/inode.c:6199
 __mark_inode_dirty+0x2e8/0x11cc fs/fs-writeback.c:2515
 generic_update_time fs/inode.c:1944 [inline]
 inode_update_time fs/inode.c:1957 [inline]
 touch_atime+0x410/0x7dc fs/inode.c:2029
 file_accessed include/linux/fs.h:2606 [inline]
 filemap_read+0x1ec4/0x20dc mm/filemap.c:2836
 generic_file_read_iter+0xf8/0x5ac mm/filemap.c:2941
 ext4_file_read_iter+0x360/0x4cc fs/ext4/file.c:-1
 __kernel_read+0x24c/0x5c0 fs/read_write.c:428
 kernel_read+0xd4/0x1c8 fs/read_write.c:446
 prepare_binprm fs/exec.c:1707 [inline]
 search_binary_handler fs/exec.c:1761 [inline]
 exec_binprm fs/exec.c:1818 [inline]
 bprm_execve+0x894/0x1588 fs/exec.c:1887
 do_execveat_common+0x668/0x7fc fs/exec.c:1992
 do_execve fs/exec.c:2066 [inline]
 __do_sys_execve fs/exec.c:2142 [inline]
 __se_sys_execve fs/exec.c:2137 [inline]
 __arm64_sys_execve+0x98/0xb0 fs/exec.c:2137
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x12c arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:589
INFO: task syz.0.504:6293 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.504       state:D stack:0     pid:6293  ppid:4331   flags:0x00000001
Call trace:
 __switch_to+0x2f4/0x550 arch/arm64/kernel/process.c:555
 context_switch kernel/sched/core.c:5257 [inline]
 __schedule+0xdb4/0x1aa4 kernel/sched/core.c:6584
 schedule+0xc4/0x170 kernel/sched/core.c:6660
 io_schedule+0x84/0x154 kernel/sched/core.c:8848
 bit_wait_io+0x1c/0xe8 kernel/sched/wait_bit.c:209
 __wait_on_bit kernel/sched/wait_bit.c:49 [inline]
 out_of_line_wait_on_bit+0x168/0x208 kernel/sched/wait_bit.c:64
 wait_on_bit_io include/linux/wait_bit.h:101 [inline]
 do_get_write_access+0x504/0xe4c fs/jbd2/transaction.c:1115
 jbd2_journal_get_write_access+0x11c/0x14c fs/jbd2/transaction.c:1250
 __ext4_journal_get_write_access+0x1f8/0x5f8 fs/ext4/ext4_jbd2.c:235
 ext4_reserve_inode_write+0x1e4/0x264 fs/ext4/inode.c:5978
 __ext4_mark_inode_dirty+0x190/0x7e8 fs/ext4/inode.c:6162
 ext4_dirty_inode+0xd4/0x110 fs/ext4/inode.c:6199
 __mark_inode_dirty+0x2e8/0x11cc fs/fs-writeback.c:2515
 generic_update_time fs/inode.c:1944 [inline]
 inode_update_time fs/inode.c:1957 [inline]
 __file_update_time+0x1f8/0x220 fs/inode.c:2145
 file_update_time+0x270/0x2ec fs/inode.c:2176
 ext4_page_mkwrite+0x180/0x10b0 fs/ext4/inode.c:6317
 do_page_mkwrite+0x140/0x35c mm/memory.c:3009
 do_shared_fault mm/memory.c:4694 [inline]
 do_fault mm/memory.c:4762 [inline]
 handle_pte_fault mm/memory.c:5029 [inline]
 __handle_mm_fault mm/memory.c:5171 [inline]
 handle_mm_fault+0x1404/0x3018 mm/memory.c:5292
 __do_page_fault arch/arm64/mm/fault.c:506 [inline]
 do_page_fault+0x310/0xa5c arch/arm64/mm/fault.c:590
 do_translation_fault+0x94/0xc8 arch/arm64/mm/fault.c:674
 do_mem_abort+0x70/0x198 arch/arm64/mm/fault.c:811
 el0_da+0x74/0x14c arch/arm64/kernel/entry-common.c:515
 el0t_64_sync_handler+0x90/0xf0 arch/arm64/kernel/entry-common.c:658
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:589
INFO: task dhcpcd:6294 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd          state:D stack:0     pid:6294  ppid:3996   flags:0x00000008
Call trace:
 __switch_to+0x2f4/0x550 arch/arm64/kernel/process.c:555
 context_switch kernel/sched/core.c:5257 [inline]
 __schedule+0xdb4/0x1aa4 kernel/sched/core.c:6584
 schedule+0xc4/0x170 kernel/sched/core.c:6660
 io_schedule+0x84/0x154 kernel/sched/core.c:8848
 bit_wait_io+0x1c/0xe8 kernel/sched/wait_bit.c:209
 __wait_on_bit kernel/sched/wait_bit.c:49 [inline]
 out_of_line_wait_on_bit+0x168/0x208 kernel/sched/wait_bit.c:64
 wait_on_bit_io include/linux/wait_bit.h:101 [inline]
 do_get_write_access+0x504/0xe4c fs/jbd2/transaction.c:1115
 jbd2_journal_get_write_access+0x11c/0x14c fs/jbd2/transaction.c:1250
 __ext4_journal_get_write_access+0x1f8/0x5f8 fs/ext4/ext4_jbd2.c:235
 ext4_reserve_inode_write+0x1e4/0x264 fs/ext4/inode.c:5978
 __ext4_mark_inode_dirty+0x190/0x7e8 fs/ext4/inode.c:6162
 ext4_dirty_inode+0xd4/0x110 fs/ext4/inode.c:6199
 __mark_inode_dirty+0x2e8/0x11cc fs/fs-writeback.c:2515
 generic_update_time fs/inode.c:1944 [inline]
 inode_update_time fs/inode.c:1957 [inline]
 touch_atime+0x410/0x7dc fs/inode.c:2029
 file_accessed include/linux/fs.h:2606 [inline]
 filemap_read+0x1ec4/0x20dc mm/filemap.c:2836
 generic_file_read_iter+0xf8/0x5ac mm/filemap.c:2941
 ext4_file_read_iter+0x360/0x4cc fs/ext4/file.c:-1
 __kernel_read+0x24c/0x5c0 fs/read_write.c:428
 kernel_read+0xd4/0x1c8 fs/read_write.c:446
 prepare_binprm fs/exec.c:1707 [inline]
 search_binary_handler fs/exec.c:1761 [inline]
 exec_binprm fs/exec.c:1818 [inline]
 bprm_execve+0x894/0x1588 fs/exec.c:1887
 do_execveat_common+0x668/0x7fc fs/exec.c:1992
 do_execve fs/exec.c:2066 [inline]
 __do_sys_execve fs/exec.c:2142 [inline]
 __se_sys_execve fs/exec.c:2137 [inline]
 __arm64_sys_execve+0x98/0xb0 fs/exec.c:2137
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x12c arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:589
INFO: task syz.3.505:6295 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.505       state:D stack:0     pid:6295  ppid:4332   flags:0x00000001
Call trace:
 __switch_to+0x2f4/0x550 arch/arm64/kernel/process.c:555
 context_switch kernel/sched/core.c:5257 [inline]
 __schedule+0xdb4/0x1aa4 kernel/sched/core.c:6584
 schedule+0xc4/0x170 kernel/sched/core.c:6660
 io_schedule+0x84/0x154 kernel/sched/core.c:8848
 bit_wait_io+0x1c/0xe8 kernel/sched/wait_bit.c:209
 __wait_on_bit kernel/sched/wait_bit.c:49 [inline]
 out_of_line_wait_on_bit+0x168/0x208 kernel/sched/wait_bit.c:64
 wait_on_bit_io include/linux/wait_bit.h:101 [inline]
 do_get_write_access+0x504/0xe4c fs/jbd2/transaction.c:1115
 jbd2_journal_get_write_access+0x11c/0x14c fs/jbd2/transaction.c:1250
 __ext4_journal_get_write_access+0x1f8/0x5f8 fs/ext4/ext4_jbd2.c:235
 ext4_reserve_inode_write+0x1e4/0x264 fs/ext4/inode.c:5978
 __ext4_mark_inode_dirty+0x190/0x7e8 fs/ext4/inode.c:6162
 ext4_dirty_inode+0xd4/0x110 fs/ext4/inode.c:6199
 __mark_inode_dirty+0x2e8/0x11cc fs/fs-writeback.c:2515
 generic_update_time fs/inode.c:1944 [inline]
 inode_update_time fs/inode.c:1957 [inline]
 __file_update_time+0x1f8/0x220 fs/inode.c:2145
 file_update_time+0x270/0x2ec fs/inode.c:2176
 ext4_page_mkwrite+0x180/0x10b0 fs/ext4/inode.c:6317
 do_page_mkwrite+0x140/0x35c mm/memory.c:3009
 do_shared_fault mm/memory.c:4694 [inline]
 do_fault mm/memory.c:4762 [inline]
 handle_pte_fault mm/memory.c:5029 [inline]
 __handle_mm_fault mm/memory.c:5171 [inline]
 handle_mm_fault+0x1404/0x3018 mm/memory.c:5292
 __do_page_fault arch/arm64/mm/fault.c:506 [inline]
 do_page_fault+0x310/0xa5c arch/arm64/mm/fault.c:590
 do_translation_fault+0x94/0xc8 arch/arm64/mm/fault.c:674
 do_mem_abort+0x70/0x198 arch/arm64/mm/fault.c:811
 el0_da+0x74/0x14c arch/arm64/kernel/entry-common.c:515
 el0t_64_sync_handler+0x90/0xf0 arch/arm64/kernel/entry-common.c:658
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:589

Showing all locks held in the system:
2 locks held by kworker/u4:1/11:
 #0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x69c/0x13bc kernel/workqueue.c:-1
 #1: ffff80001dbd7c40 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x6e8/0x13bc kernel/workqueue.c:2267
1 lock held by rcu_tasks_kthre/12:
 #0: ffff8000165b7ed0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x40/0xc64 kernel/rcu/tasks.h:543
1 lock held by rcu_tasks_trace/13:
 #0: ffff8000165b8710 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x40/0xc64 kernel/rcu/tasks.h:543
1 lock held by khungtaskd/28:
 #0: ffff8000165b7580 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:349
2 locks held by getty/4083:
 #0: ffff0000d77eb098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff800021a9b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2e8/0xffc drivers/tty/n_tty.c:2198
3 locks held by syz-executor/4318:
 #0: ffff0000de311f48 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
 #0: ffff0000de311f48 (&mm->mmap_lock){++++}-{3:3}, at: get_mmap_lock_carefully mm/memory.c:5320 [inline]
 #0: ffff0000de311f48 (&mm->mmap_lock){++++}-{3:3}, at: lock_mm_and_find_vma+0x38/0x2e0 mm/memory.c:5382
 #1: ffff0000d9ade558 (sb_pagefaults){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1897 [inline]
 #1: ffff0000d9ade558 (sb_pagefaults){.+.+}-{0:0}, at: sb_start_pagefault include/linux/fs.h:2001 [inline]
 #1: ffff0000d9ade558 (sb_pagefaults){.+.+}-{0:0}, at: ext4_page_mkwrite+0x168/0x10b0 fs/ext4/inode.c:6316
 #2: ffff0000d9aec990 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xfec/0x125c fs/jbd2/transaction.c:461
4 locks held by kworker/u4:52/5142:
 #0: ffff0000c0c28938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x69c/0x13bc kernel/workqueue.c:-1
 #1: ffff800024b77c40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x6e8/0x13bc kernel/workqueue.c:2267
 #2: ffff0000d9ade0e0 (&type->s_umount_key#30){++++}-{3:3}, at: trylock_super+0x24/0xf4 fs/super.c:415
 #3: ffff0000d9ae8c18 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: ext4_writepages_down_read fs/ext4/ext4.h:1785 [inline]
 #3: ffff0000d9ae8c18 (&sbi->s_writepages_rwsem){.+.+}-{0:0}, at: ext4_writepages+0x1b0/0x29f0 fs/ext4/inode.c:2719
3 locks held by syz.1.450/6031:
 #0: ffff0000ce6bc440 (&ctrl->scan_lock){+.+.}-{3:3}, at: nvme_passthru_start drivers/nvme/host/core.c:1147 [inline]
 #0: ffff0000ce6bc440 (&ctrl->scan_lock){+.+.}-{3:3}, at: nvme_execute_passthru_rq+0x268/0x578 drivers/nvme/host/core.c:1204
 #1: ffff0000cf4ff510 (&subsys->lock){+.+.}-{3:3}, at: nvme_passthru_start drivers/nvme/host/core.c:1148 [inline]
 #1: ffff0000cf4ff510 (&subsys->lock){+.+.}-{3:3}, at: nvme_execute_passthru_rq+0x290/0x578 drivers/nvme/host/core.c:1204
 #2: ffff0000ce6bc528 (&ctrl->namespaces_rwsem){++++}-{3:3}, at: nvme_wait_freeze drivers/nvme/host/core.c:5408 [inline]
 #2: ffff0000ce6bc528 (&ctrl->namespaces_rwsem){++++}-{3:3}, at: nvme_passthru_start drivers/nvme/host/core.c:1152 [inline]
 #2: ffff0000ce6bc528 (&ctrl->namespaces_rwsem){++++}-{3:3}, at: nvme_execute_passthru_rq+0x34c/0x578 drivers/nvme/host/core.c:1204
3 locks held by syz-executor/6041:
 #0: ffff0000d9ade460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:402
 #1: ffff0000f606f258 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:799 [inline]
 #1: ffff0000f606f258 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: filename_create+0x1b0/0x3a8 fs/namei.c:3931
 #2: ffff0000d9aec990 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xfec/0x125c fs/jbd2/transaction.c:461
2 locks held by modprobe/6289:
 #0: ffff0000d9ade460 (sb_writers#3){.+.+}-{0:0}, at: file_accessed include/linux/fs.h:2606 [inline]
 #0: ffff0000d9ade460 (sb_writers#3){.+.+}-{0:0}, at: filemap_read+0x1ec4/0x20dc mm/filemap.c:2836
 #1: ffff0000d9aec990 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xfec/0x125c fs/jbd2/transaction.c:461
3 locks held by syz.5.503/6291:
 #0: ffff0000de314f48 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
 #0: ffff0000de314f48 (&mm->mmap_lock){++++}-{3:3}, at: get_mmap_lock_carefully mm/memory.c:5320 [inline]
 #0: ffff0000de314f48 (&mm->mmap_lock){++++}-{3:3}, at: lock_mm_and_find_vma+0x38/0x2e0 mm/memory.c:5382
 #1: ffff0000d9ade558 (sb_pagefaults){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1897 [inline]
 #1: ffff0000d9ade558 (sb_pagefaults){.+.+}-{0:0}, at: sb_start_pagefault include/linux/fs.h:2001 [inline]
 #1: ffff0000d9ade558 (sb_pagefaults){.+.+}-{0:0}, at: ext4_page_mkwrite+0x168/0x10b0 fs/ext4/inode.c:6316
 #2: ffff0000d9aec990 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xfec/0x125c fs/jbd2/transaction.c:461
3 locks held by udevd/6292:
 #0: ffff0000d768dd10 (&sig->cred_guard_mutex){+.+.}-{3:3}, at: prepare_bprm_creds fs/exec.c:1513 [inline]
 #0: ffff0000d768dd10 (&sig->cred_guard_mutex){+.+.}-{3:3}, at: bprm_execve+0xb8/0x1588 fs/exec.c:1855
 #1: ffff0000d9ade460 (sb_writers#3){.+.+}-{0:0}, at: file_accessed include/linux/fs.h:2606 [inline]
 #1: ffff0000d9ade460 (sb_writers#3){.+.+}-{0:0}, at: filemap_read+0x1ec4/0x20dc mm/filemap.c:2836
 #2: ffff0000d9aec990 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xfec/0x125c fs/jbd2/transaction.c:461
3 locks held by syz.0.504/6293:
 #0: ffff0000d784e148 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
 #0: ffff0000d784e148 (&mm->mmap_lock){++++}-{3:3}, at: get_mmap_lock_carefully mm/memory.c:5320 [inline]
 #0: ffff0000d784e148 (&mm->mmap_lock){++++}-{3:3}, at: lock_mm_and_find_vma+0x38/0x2e0 mm/memory.c:5382
 #1: ffff0000d9ade558 (sb_pagefaults){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1897 [inline]
 #1: ffff0000d9ade558 (sb_pagefaults){.+.+}-{0:0}, at: sb_start_pagefault include/linux/fs.h:2001 [inline]
 #1: ffff0000d9ade558 (sb_pagefaults){.+.+}-{0:0}, at: ext4_page_mkwrite+0x168/0x10b0 fs/ext4/inode.c:6316
 #2: ffff0000d9aec990 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xfec/0x125c fs/jbd2/transaction.c:461
3 locks held by dhcpcd/6294:
 #0: ffff0000d768add0 (&sig->cred_guard_mutex){+.+.}-{3:3}, at: prepare_bprm_creds fs/exec.c:1513 [inline]
 #0: ffff0000d768add0 (&sig->cred_guard_mutex){+.+.}-{3:3}, at: bprm_execve+0xb8/0x1588 fs/exec.c:1855
 #1: ffff0000d9ade460 (sb_writers#3){.+.+}-{0:0}, at: file_accessed include/linux/fs.h:2606 [inline]
 #1: ffff0000d9ade460 (sb_writers#3){.+.+}-{0:0}, at: filemap_read+0x1ec4/0x20dc mm/filemap.c:2836
 #2: ffff0000d9aec990 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xfec/0x125c fs/jbd2/transaction.c:461
3 locks held by syz.3.505/6295:
 #0: ffff0000cafde748 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
 #0: ffff0000cafde748 (&mm->mmap_lock){++++}-{3:3}, at: get_mmap_lock_carefully mm/memory.c:5320 [inline]
 #0: ffff0000cafde748 (&mm->mmap_lock){++++}-{3:3}, at: lock_mm_and_find_vma+0x38/0x2e0 mm/memory.c:5382
 #1: ffff0000d9ade558 (sb_pagefaults){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1897 [inline]
 #1: ffff0000d9ade558 (sb_pagefaults){.+.+}-{0:0}, at: sb_start_pagefault include/linux/fs.h:2001 [inline]
 #1: ffff0000d9ade558 (sb_pagefaults){.+.+}-{0:0}, at: ext4_page_mkwrite+0x168/0x10b0 fs/ext4/inode.c:6316
 #2: ffff0000d9aec990 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xfec/0x125c fs/jbd2/transaction.c:461
3 locks held by syz-executor/6296:
 #0: ffff0000d9ade460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:402
 #1: ffff0000e0e82c20 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:799 [inline]
 #1: ffff0000e0e82c20 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: filename_create+0x1b0/0x3a8 fs/namei.c:3931
 #2: ffff0000d9aec990 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xfec/0x125c fs/jbd2/transaction.c:461

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