INFO: task syz-executor.3:6371 blocked for more than 143 seconds. Not tainted 6.6.0-rc5-syzkaller-00005-g88500e4e46f7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:0 pid:6371 ppid:1 flags:0x0000000d Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5382 [inline] __schedule+0x1364/0x23b4 kernel/sched/core.c:6695 schedule+0xc4/0x170 kernel/sched/core.c:6771 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6830 __mutex_lock_common+0xbd8/0x21a0 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799 bd_end_claim block/bdev.c:600 [inline] blkdev_put+0x130/0x740 block/bdev.c:886 kill_block_super+0x5c/0x74 fs/super.c:1649 reiserfs_kill_sb+0xfc/0x160 fs/reiserfs/super.c:574 deactivate_locked_super+0xac/0x12c fs/super.c:481 deactivate_super+0xe0/0x100 fs/super.c:514 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1254 __cleanup_mnt+0x20/0x30 fs/namespace.c:1261 task_work_run+0x230/0x2e0 kernel/task_work.c:180 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x2184/0x3c94 arch/arm64/kernel/signal.c:1305 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:144 [inline] el0_svc+0xa0/0x16c arch/arm64/kernel/entry-common.c:679 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 INFO: task udevd:6398 blocked for more than 143 seconds. Not tainted 6.6.0-rc5-syzkaller-00005-g88500e4e46f7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:0 pid:6398 ppid:5627 flags:0x00000004 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5382 [inline] __schedule+0x1364/0x23b4 kernel/sched/core.c:6695 schedule+0xc4/0x170 kernel/sched/core.c:6771 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6830 __mutex_lock_common+0xbd8/0x21a0 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799 blkdev_put+0xec/0x740 block/bdev.c:884 blkdev_release+0x84/0x9c block/fops.c:604 __fput+0x324/0x7f8 fs/file_table.c:384 __fput_sync+0x60/0x9c fs/file_table.c:465 __do_sys_close fs/open.c:1572 [inline] __se_sys_close fs/open.c:1557 [inline] __arm64_sys_close+0x150/0x1e0 fs/open.c:1557 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 INFO: task syz-executor.0:6660 blocked for more than 143 seconds. Not tainted 6.6.0-rc5-syzkaller-00005-g88500e4e46f7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:0 pid:6660 ppid:6379 flags:0x0000000d Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5382 [inline] __schedule+0x1364/0x23b4 kernel/sched/core.c:6695 schedule+0xc4/0x170 kernel/sched/core.c:6771 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6830 __mutex_lock_common+0xbd8/0x21a0 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799 bd_finish_claiming+0x218/0x3dc block/bdev.c:566 blkdev_get_by_dev+0x3f4/0x55c block/bdev.c:799 journal_init_dev fs/reiserfs/journal.c:2622 [inline] journal_init+0xa64/0x1e48 fs/reiserfs/journal.c:2788 reiserfs_fill_super+0xd58/0x2058 fs/reiserfs/super.c:2029 mount_bdev+0x1e8/0x2b4 fs/super.c:1629 get_super_block+0x44/0x58 fs/reiserfs/super.c:2605 legacy_get_tree+0xd4/0x16c fs/fs_context.c:638 vfs_get_tree+0x90/0x288 fs/super.c:1750 do_new_mount+0x25c/0x8c8 fs/namespace.c:3335 path_mount+0x590/0xe04 fs/namespace.c:3662 do_mount fs/namespace.c:3675 [inline] __do_sys_mount fs/namespace.c:3884 [inline] __se_sys_mount fs/namespace.c:3861 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3861 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 INFO: task syz-executor.5:6662 blocked for more than 143 seconds. Not tainted 6.6.0-rc5-syzkaller-00005-g88500e4e46f7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:0 pid:6662 ppid:6381 flags:0x0000000d Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5382 [inline] __schedule+0x1364/0x23b4 kernel/sched/core.c:6695 schedule+0xc4/0x170 kernel/sched/core.c:6771 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6830 __mutex_lock_common+0xbd8/0x21a0 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799 bd_prepare_to_claim+0x1a4/0x49c block/bdev.c:508 blkdev_get_by_dev+0xb4/0x55c block/bdev.c:774 journal_init_dev fs/reiserfs/journal.c:2622 [inline] journal_init+0xa64/0x1e48 fs/reiserfs/journal.c:2788 reiserfs_fill_super+0xd58/0x2058 fs/reiserfs/super.c:2029 mount_bdev+0x1e8/0x2b4 fs/super.c:1629 get_super_block+0x44/0x58 fs/reiserfs/super.c:2605 legacy_get_tree+0xd4/0x16c fs/fs_context.c:638 vfs_get_tree+0x90/0x288 fs/super.c:1750 do_new_mount+0x25c/0x8c8 fs/namespace.c:3335 path_mount+0x590/0xe04 fs/namespace.c:3662 do_mount fs/namespace.c:3675 [inline] __do_sys_mount fs/namespace.c:3884 [inline] __se_sys_mount fs/namespace.c:3861 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3861 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 INFO: task syz-executor.1:6666 blocked for more than 143 seconds. Not tainted 6.6.0-rc5-syzkaller-00005-g88500e4e46f7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:0 pid:6666 ppid:6380 flags:0x0000000d Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5382 [inline] __schedule+0x1364/0x23b4 kernel/sched/core.c:6695 schedule+0xc4/0x170 kernel/sched/core.c:6771 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6830 __mutex_lock_common+0xbd8/0x21a0 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799 bd_prepare_to_claim+0x1a4/0x49c block/bdev.c:508 blkdev_get_by_dev+0xb4/0x55c block/bdev.c:774 journal_init_dev fs/reiserfs/journal.c:2622 [inline] journal_init+0xa64/0x1e48 fs/reiserfs/journal.c:2788 reiserfs_fill_super+0xd58/0x2058 fs/reiserfs/super.c:2029 mount_bdev+0x1e8/0x2b4 fs/super.c:1629 get_super_block+0x44/0x58 fs/reiserfs/super.c:2605 legacy_get_tree+0xd4/0x16c fs/fs_context.c:638 vfs_get_tree+0x90/0x288 fs/super.c:1750 do_new_mount+0x25c/0x8c8 fs/namespace.c:3335 path_mount+0x590/0xe04 fs/namespace.c:3662 do_mount fs/namespace.c:3675 [inline] __do_sys_mount fs/namespace.c:3884 [inline] __se_sys_mount fs/namespace.c:3861 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3861 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 INFO: task syz-executor.2:6675 blocked for more than 143 seconds. Not tainted 6.6.0-rc5-syzkaller-00005-g88500e4e46f7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:0 pid:6675 ppid:6388 flags:0x0000000d Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5382 [inline] __schedule+0x1364/0x23b4 kernel/sched/core.c:6695 schedule+0xc4/0x170 kernel/sched/core.c:6771 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6830 __mutex_lock_common+0xbd8/0x21a0 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799 bd_prepare_to_claim+0x1a4/0x49c block/bdev.c:508 blkdev_get_by_dev+0xb4/0x55c block/bdev.c:774 journal_init_dev fs/reiserfs/journal.c:2622 [inline] journal_init+0xa64/0x1e48 fs/reiserfs/journal.c:2788 reiserfs_fill_super+0xd58/0x2058 fs/reiserfs/super.c:2029 mount_bdev+0x1e8/0x2b4 fs/super.c:1629 get_super_block+0x44/0x58 fs/reiserfs/super.c:2605 legacy_get_tree+0xd4/0x16c fs/fs_context.c:638 vfs_get_tree+0x90/0x288 fs/super.c:1750 do_new_mount+0x25c/0x8c8 fs/namespace.c:3335 path_mount+0x590/0xe04 fs/namespace.c:3662 do_mount fs/namespace.c:3675 [inline] __do_sys_mount fs/namespace.c:3884 [inline] __se_sys_mount fs/namespace.c:3861 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3861 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 INFO: task syz-executor.4:6678 blocked for more than 143 seconds. Not tainted 6.6.0-rc5-syzkaller-00005-g88500e4e46f7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:0 pid:6678 ppid:6383 flags:0x0000000d Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5382 [inline] __schedule+0x1364/0x23b4 kernel/sched/core.c:6695 schedule+0xc4/0x170 kernel/sched/core.c:6771 super_lock+0x23c/0x328 fs/super.c:134 super_lock_shared fs/super.c:146 [inline] super_lock_shared_active fs/super.c:1431 [inline] fs_bdev_sync+0xa4/0x168 fs/super.c:1466 blkdev_flushbuf block/ioctl.c:372 [inline] blkdev_common_ioctl+0x848/0x2884 block/ioctl.c:502 blkdev_ioctl+0x35c/0xae4 block/ioctl.c:624 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl fs/ioctl.c:857 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:857 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 INFO: task syz-executor.4:6681 blocked for more than 143 seconds. Not tainted 6.6.0-rc5-syzkaller-00005-g88500e4e46f7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:0 pid:6681 ppid:6383 flags:0x00000005 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5382 [inline] __schedule+0x1364/0x23b4 kernel/sched/core.c:6695 schedule+0xc4/0x170 kernel/sched/core.c:6771 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6830 __mutex_lock_common+0xbd8/0x21a0 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799 bd_prepare_to_claim+0x1a4/0x49c block/bdev.c:508 loop_configure+0x15c/0xfd4 drivers/block/loop.c:1018 lo_ioctl+0xc70/0x1d04 blkdev_ioctl+0x3e4/0xae4 block/ioctl.c:630 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl fs/ioctl.c:857 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:857 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 Showing all locks held in the system: 1 lock held by khungtaskd/29: #0: ffff80008e3739c0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:302 3 locks held by kworker/u4:11/669: #0: ffff0001b41f2d58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2c/0x44 kernel/sched/core.c:558 #1: ffff0001b41dee48 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x308/0x618 kernel/sched/psi.c:987 #2: ffff80008e3739c0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x10/0x4c include/linux/rcupdate.h:302 2 locks held by getty/5774: #0: ffff0000d24e40a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff8000959e02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1214 drivers/tty/n_tty.c:2206 2 locks held by syz-executor.3/6371: #0: ffff0000c9ca64c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xec/0x740 block/bdev.c:884 #1: ffff80008e1748a8 (bdev_lock){+.+.}-{3:3}, at: bd_end_claim block/bdev.c:600 [inline] #1: ffff80008e1748a8 (bdev_lock){+.+.}-{3:3}, at: blkdev_put+0x130/0x740 block/bdev.c:886 1 lock held by udevd/6398: #0: ffff0000c9ca64c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xec/0x740 block/bdev.c:884 3 locks held by syz-executor.0/6660: #0: ffff0000c9c844c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x114/0x55c block/bdev.c:786 #1: ffff80008e1748a8 (bdev_lock){+.+.}-{3:3}, at: bd_finish_claiming+0x84/0x3dc block/bdev.c:557 #2: ffff0000c1483a88 (&bdev->bd_holder_lock){+.+.}-{3:3}, at: bd_finish_claiming+0x218/0x3dc block/bdev.c:566 1 lock held by syz-executor.5/6662: #0: ffff80008e1748a8 (bdev_lock){+.+.}-{3:3}, at: bd_prepare_to_claim+0x1a4/0x49c block/bdev.c:508 1 lock held by syz-executor.1/6666: #0: ffff80008e1748a8 (bdev_lock){+.+.}-{3:3}, at: bd_prepare_to_claim+0x1a4/0x49c block/bdev.c:508 1 lock held by syz-executor.2/6675: #0: ffff80008e1748a8 (bdev_lock){+.+.}-{3:3}, at: bd_prepare_to_claim+0x1a4/0x49c block/bdev.c:508 1 lock held by syz-executor.4/6678: #0: ffff0000c1483a88 (&bdev->bd_holder_lock){+.+.}-{3:3}, at: blkdev_flushbuf block/ioctl.c:370 [inline] #0: ffff0000c1483a88 (&bdev->bd_holder_lock){+.+.}-{3:3}, at: blkdev_common_ioctl+0x7fc/0x2884 block/ioctl.c:502 1 lock held by syz-executor.4/6681: #0: ffff80008e1748a8 (bdev_lock){+.+.}-{3:3}, at: bd_prepare_to_claim+0x1a4/0x49c block/bdev.c:508 1 lock held by syz-executor.0/6893: #0: ffff0000c9c844c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x114/0x55c block/bdev.c:786 1 lock held by syz-executor.5/6964: #0: ffff0000c9c844c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x114/0x55c block/bdev.c:786 1 lock held by syz-executor.5/6965: #0: ffff80008e1748a8 (bdev_lock){+.+.}-{3:3}, at: bd_prepare_to_claim+0x1a4/0x49c block/bdev.c:508 1 lock held by syz-executor.1/6971: #0: ffff0000c9c844c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x114/0x55c block/bdev.c:786 1 lock held by syz-executor.1/6972: #0: ffff80008e1748a8 (bdev_lock){+.+.}-{3:3}, at: bd_prepare_to_claim+0x1a4/0x49c block/bdev.c:508 1 lock held by syz-executor.2/6981: #0: ffff0000c9c844c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x114/0x55c block/bdev.c:786 1 lock held by syz-executor.2/6985: #0: ffff80008e1748a8 (bdev_lock){+.+.}-{3:3}, at: bd_prepare_to_claim+0x1a4/0x49c block/bdev.c:508 1 lock held by syz-executor.4/6987: #0: ffff0000c9c844c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x114/0x55c block/bdev.c:786 1 lock held by syz-executor.4/6988: #0: ffff80008e1748a8 (bdev_lock){+.+.}-{3:3}, at: bd_prepare_to_claim+0x1a4/0x49c block/bdev.c:508 1 lock held by syz-executor.5/7050: #0: ffff0000c9c844c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x114/0x55c block/bdev.c:786 1 lock held by syz-executor.5/7051: #0: ffff80008e1748a8 (bdev_lock){+.+.}-{3:3}, at: bd_prepare_to_claim+0x1a4/0x49c block/bdev.c:508 1 lock held by syz-executor.1/7055: #0: ffff0000c9c844c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x114/0x55c block/bdev.c:786 1 lock held by syz-executor.1/7058: #0: ffff80008e1748a8 (bdev_lock){+.+.}-{3:3}, at: bd_prepare_to_claim+0x1a4/0x49c block/bdev.c:508 1 lock held by syz-executor.2/7066: #0: ffff0000c9c844c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x114/0x55c block/bdev.c:786 1 lock held by syz-executor.2/7069: #0: ffff80008e1748a8 (bdev_lock){+.+.}-{3:3}, at: bd_prepare_to_claim+0x1a4/0x49c block/bdev.c:508 1 lock held by syz-executor.4/7073: #0: ffff0000c9c844c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x114/0x55c block/bdev.c:786 1 lock held by syz-executor.4/7074: #0: ffff80008e1748a8 (bdev_lock){+.+.}-{3:3}, at: bd_prepare_to_claim+0x1a4/0x49c block/bdev.c:508 =============================================