BUG: Dentry 00000000d0fdf2f7{i=42a2,n=bus} still in use (1) [unmount of ocfs2 loop3] ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4321 at fs/dcache.c:1681 umount_check+0x180/0x1bc fs/dcache.c:1672 Modules linked in: CPU: 0 PID: 4321 Comm: syz-executor Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : umount_check+0x180/0x1bc fs/dcache.c:1672 lr : umount_check+0x180/0x1bc fs/dcache.c:1672 sp : ffff800020e67870 x29: ffff800020e67870 x28: ffff0000e047e6f8 x27: ffff0000e2820e40 x26: ffff0000e047e5e0 x25: ffff0000e2820d38 x24: ffff0000fc13a000 x23: dfff800000000000 x22: ffff8000158c9680 x21: 0000000000000001 x20: 00000000000042a2 x19: ffff0000e2820d38 x18: ffff800011b9bf60 x17: 6e755b2029312820 x16: ffff8000082d92bc x15: 0000000000000000 x14: 0000000000000001 x13: 1ffff000041cce74 x12: 0000000000ff0100 x11: ff00800008311668 x10: 0000000000000000 x9 : f99e410b76688600 x8 : f99e410b76688600 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800020e67338 x4 : ffff800015304cc0 x3 : ffff80000a891730 x2 : ffff00019f531d10 x1 : 0000000100000002 x0 : 0000000000000055 Call trace: umount_check+0x180/0x1bc fs/dcache.c:1672 d_walk+0x1b8/0x654 fs/dcache.c:1391 do_one_tree+0x40/0xf0 fs/dcache.c:1688 shrink_dcache_for_umount+0x68/0x114 fs/dcache.c:1704 generic_shutdown_super+0x68/0x324 fs/super.c:473 kill_block_super+0x70/0xdc fs/super.c:1470 deactivate_locked_super+0xac/0x120 fs/super.c:332 deactivate_super+0xe4/0x104 fs/super.c:363 cleanup_mnt+0x390/0x418 fs/namespace.c:1191 __cleanup_mnt+0x20/0x30 fs/namespace.c:1198 task_work_run+0x1ec/0x278 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x1fa0/0x2aa4 arch/arm64/kernel/signal.c:1151 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x98/0x128 arch/arm64/kernel/entry-common.c:638 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 329130 hardirqs last enabled at (329129): [] __up_console_sem+0xb4/0xfc kernel/printk/printk.c:261 hardirqs last disabled at (329130): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (329048): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (329046): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- BUG: Dentry 00000000d0fdf2f7{i=42a2,n=bus} still in use (1) [unmount of ocfs2 loop3] ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4321 at fs/dcache.c:1681 umount_check+0x180/0x1bc fs/dcache.c:1672 Modules linked in: CPU: 0 PID: 4321 Comm: syz-executor Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : umount_check+0x180/0x1bc fs/dcache.c:1672 lr : umount_check+0x180/0x1bc fs/dcache.c:1672 sp : ffff800020e67870 x29: ffff800020e67870 x28: ffff0000e047e6f8 x27: ffff0000e2820e40 x26: ffff0000e047e5e0 x25: ffff0000e2820d38 x24: ffff0000fc13a000 x23: dfff800000000000 x22: ffff8000158c9680 x21: 0000000000000001 x20: 00000000000042a2 x19: ffff0000e2820d38 x18: ffff800011b9bf60 x17: 6e755b2029312820 x16: ffff8000082d92bc x15: 0000000000000000 x14: 0000000000000001 x13: 1ffff000041cce74 x12: 0000000000ff0100 x11: ff00800008311668 x10: 0000000000000000 x9 : f99e410b76688600 x8 : f99e410b76688600 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800020e67338 x4 : ffff800015304cc0 x3 : ffff80000a891730 x2 : ffff00019f531d10 x1 : 0000000000000003 x0 : 0000000000000055 Call trace: umount_check+0x180/0x1bc fs/dcache.c:1672 d_walk+0x1b8/0x654 fs/dcache.c:1391 do_one_tree+0x40/0xf0 fs/dcache.c:1688 shrink_dcache_for_umount+0x68/0x114 fs/dcache.c:1704 generic_shutdown_super+0x68/0x324 fs/super.c:473 kill_block_super+0x70/0xdc fs/super.c:1470 deactivate_locked_super+0xac/0x120 fs/super.c:332 deactivate_super+0xe4/0x104 fs/super.c:363 cleanup_mnt+0x390/0x418 fs/namespace.c:1191 __cleanup_mnt+0x20/0x30 fs/namespace.c:1198 task_work_run+0x1ec/0x278 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x1fa0/0x2aa4 arch/arm64/kernel/signal.c:1151 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x98/0x128 arch/arm64/kernel/entry-common.c:638 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 329200 hardirqs last enabled at (329199): [] __up_console_sem+0xb4/0xfc kernel/printk/printk.c:261 hardirqs last disabled at (329200): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (329194): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (329194): [] handle_softirqs+0xaec/0xc60 kernel/softirq.c:624 softirqs last disabled at (329181): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ocfs2: Unmounting device (7,3) on (node local) VFS: Busy inodes after unmount of loop3 (ocfs2) ------------[ cut here ]------------ kernel BUG at fs/super.c:505! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 4321 Comm: syz-executor Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : generic_shutdown_super+0x320/0x324 fs/super.c:503 lr : generic_shutdown_super+0x320/0x324 fs/super.c:503 sp : ffff800020e679a0 x29: ffff800020e679a0 x28: 1ffff00002a43a68 x27: dfff800000000000 x26: 0000000000000002 x25: 0000000000000002 x24: 1fffe0001f8274fb x23: dfff800000000000 x22: ffff800011f76ec0 x21: 0000000000000000 x20: ffff8000158c9680 x19: ffff0000fc13a000 x18: ffff800011b9bf60 x17: 1fffe00033ea637e x16: ffff8000082d92bc x15: 0000000000000000 x14: 0000000000000001 x13: 1ffff000041cce9c x12: 0000000000ff0100 x11: ff00800008311668 x10: 0000000000000000 x9 : f99e410b76688600 x8 : f99e410b76688600 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800020e67478 x4 : ffff800015304cc0 x3 : ffff80000a891730 x2 : ffff00019f531d10 x1 : 0000000100000000 x0 : 000000000000002f Call trace: generic_shutdown_super+0x320/0x324 fs/super.c:503 kill_block_super+0x70/0xdc fs/super.c:1470 deactivate_locked_super+0xac/0x120 fs/super.c:332 deactivate_super+0xe4/0x104 fs/super.c:363 cleanup_mnt+0x390/0x418 fs/namespace.c:1191 __cleanup_mnt+0x20/0x30 fs/namespace.c:1198 task_work_run+0x1ec/0x278 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x1fa0/0x2aa4 arch/arm64/kernel/signal.c:1151 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x98/0x128 arch/arm64/kernel/entry-common.c:638 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Code: d0049520 91358000 911aa261 95d90926 (d4210000) ---[ end trace 0000000000000000 ]---