------------[ cut here ]------------ BUG: Dentry 0000000046e2d702{i=42a2,n=file0} still in use (1) [unmount of ocfs2 loop0] WARNING: CPU: 1 PID: 7288 at fs/dcache.c:1598 umount_check+0x164/0x1b8 fs/dcache.c:1590 Modules linked in: CPU: 1 UID: 0 PID: 7288 Comm: syz-executor Not tainted 6.16.0-rc2-syzkaller-00009-g9aa9b43d689e #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : umount_check+0x164/0x1b8 fs/dcache.c:1590 lr : umount_check+0x164/0x1b8 fs/dcache.c:1590 sp : ffff80009fe57a90 x29: ffff80009fe57a90 x28: ffff80008f95fcd0 x27: ffff0000dc17b318 x26: 0000000000000000 x25: 0000000000100024 x24: ffff0000cde28000 x23: dfff800000000000 x22: ffff80008fd4d1c0 x21: 0000000000000001 x20: 00000000000042a2 x19: ffff0000dc17b318 x18: 00000000ffffffff x17: 5b20293128206573 x16: ffff80008aecb65c x15: 0000000000000001 x14: 1fffe000337e14e2 x13: 0000000000000000 x12: 0000000000000000 x11: ffff6000337e14e3 x10: 0000000000ff0100 x9 : 764a2314e9703500 x8 : 764a2314e9703500 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80009fe573d8 x4 : ffff80008f727060 x3 : ffff8000807bef2c x2 : 0000000000000001 x1 : 0000000100000002 x0 : 0000000000000000 Call trace: umount_check+0x164/0x1b8 fs/dcache.c:1590 (P) d_walk+0x1b8/0x668 fs/dcache.c:1321 do_one_tree+0x40/0xf0 fs/dcache.c:1605 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1621 generic_shutdown_super+0x68/0x2b8 fs/super.c:621 kill_block_super+0x44/0x90 fs/super.c:1753 deactivate_locked_super+0xc4/0x12c fs/super.c:474 deactivate_super+0xe0/0x100 fs/super.c:507 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1417 __cleanup_mnt+0x20/0x30 fs/namespace.c:1424 task_work_run+0x1dc/0x260 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] do_notify_resume+0x16c/0x1ec arch/arm64/kernel/entry-common.c:151 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline] el0_svc+0xb4/0x17c arch/arm64/kernel/entry-common.c:768 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 181036 hardirqs last enabled at (181035): [] __up_console_sem kernel/printk/printk.c:344 [inline] hardirqs last enabled at (181035): [] __console_unlock+0x70/0xc4 kernel/printk/printk.c:2885 hardirqs last disabled at (181036): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:511 softirqs last enabled at (180774): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (180772): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ BUG: Dentry 0000000046e2d702{i=42a2,n=file0} still in use (1) [unmount of ocfs2 loop0] WARNING: CPU: 1 PID: 7288 at fs/dcache.c:1598 umount_check+0x164/0x1b8 fs/dcache.c:1590 Modules linked in: CPU: 1 UID: 0 PID: 7288 Comm: syz-executor Tainted: G W 6.16.0-rc2-syzkaller-00009-g9aa9b43d689e #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : umount_check+0x164/0x1b8 fs/dcache.c:1590 lr : umount_check+0x164/0x1b8 fs/dcache.c:1590 sp : ffff80009fe57a90 x29: ffff80009fe57a90 x28: ffff80008f95fcd0 x27: ffff0000dc17b318 x26: 0000000000000001 x25: 0000000000100024 x24: ffff0000cde28000 x23: dfff800000000000 x22: ffff80008fd4d1c0 x21: 0000000000000001 x20: 00000000000042a2 x19: ffff0000dc17b318 x18: 00000000ffffffff x17: 5b20293128206573 x16: ffff80008ae33808 x15: ffff700011ed61d4 x14: 1ffff00011ed61d4 x13: 0000000000000004 x12: ffffffffffffffff x11: ffff700011ed61d4 x10: 0000000000ff0100 x9 : 764a2314e9703500 x8 : 764a2314e9703500 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80009fe573d8 x4 : ffff80008f727060 x3 : ffff80008054c348 x2 : 0000000000000000 x1 : 0000000100000003 x0 : 0000000000000000 Call trace: umount_check+0x164/0x1b8 fs/dcache.c:1590 (P) d_walk+0x1b8/0x668 fs/dcache.c:1321 do_one_tree+0x40/0xf0 fs/dcache.c:1605 shrink_dcache_for_umount+0xa0/0x168 fs/dcache.c:1621 generic_shutdown_super+0x68/0x2b8 fs/super.c:621 kill_block_super+0x44/0x90 fs/super.c:1753 deactivate_locked_super+0xc4/0x12c fs/super.c:474 deactivate_super+0xe0/0x100 fs/super.c:507 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1417 __cleanup_mnt+0x20/0x30 fs/namespace.c:1424 task_work_run+0x1dc/0x260 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] do_notify_resume+0x16c/0x1ec arch/arm64/kernel/entry-common.c:151 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline] el0_svc+0xb4/0x17c arch/arm64/kernel/entry-common.c:768 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 181206 hardirqs last enabled at (181205): [] __up_console_sem kernel/printk/printk.c:344 [inline] hardirqs last enabled at (181205): [] __console_unlock+0x70/0xc4 kernel/printk/printk.c:2885 hardirqs last disabled at (181206): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:511 softirqs last enabled at (181178): [] softirq_handle_end kernel/softirq.c:425 [inline] softirqs last enabled at (181178): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:607 softirqs last disabled at (181039): [] __do_softirq+0x14/0x20 kernel/softirq.c:613 ---[ end trace 0000000000000000 ]--- ocfs2: Unmounting device (7,0) on (node local) VFS: Busy inodes after unmount of loop0 (ocfs2) ------------[ cut here ]------------ kernel BUG at fs/super.c:653! Internal error: Oops - BUG: 00000000f2000800 [#1] SMP Modules linked in: CPU: 1 UID: 0 PID: 7288 Comm: syz-executor Tainted: G W 6.16.0-rc2-syzkaller-00009-g9aa9b43d689e #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : generic_shutdown_super+0x2b4/0x2b8 fs/super.c:651 lr : generic_shutdown_super+0x2b4/0x2b8 fs/super.c:651 sp : ffff80009fe57bb0 x29: ffff80009fe57bb0 x28: 00007dfeb2e090c8 x27: ffff80008f631ff8 x26: ffffffffffffffff x25: dfff800000000000 x24: 1fffe00019bc50f1 x23: ffff80008b38f060 x22: dfff800000000000 x21: 0000000000000000 x20: ffff80008fd4d1c0 x19: ffff0000cde28000 x18: 1fffe000337e1476 x17: ffff80008f62e000 x16: ffff80008aecb65c x15: 0000000000000001 x14: 1fffe000337e14e2 x13: 0000000000000000 x12: 0000000000000000 x11: ffff6000337e14e3 x10: 0000000000ff0100 x9 : 764a2314e9703500 x8 : 764a2314e9703500 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80009fe57538 x4 : ffff80008f727060 x3 : ffff8000807bef2c x2 : 0000000000000001 x1 : 0000000100000000 x0 : 000000000000002f Call trace: generic_shutdown_super+0x2b4/0x2b8 fs/super.c:651 (P) kill_block_super+0x44/0x90 fs/super.c:1753 deactivate_locked_super+0xc4/0x12c fs/super.c:474 deactivate_super+0xe0/0x100 fs/super.c:507 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1417 __cleanup_mnt+0x20/0x30 fs/namespace.c:1424 task_work_run+0x1dc/0x260 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] do_notify_resume+0x16c/0x1ec arch/arm64/kernel/entry-common.c:151 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline] el0_svc+0xb4/0x17c arch/arm64/kernel/entry-common.c:768 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 Code: f0051920 91360000 9119c261 97cf0a72 (d4210000) ---[ end trace 0000000000000000 ]---