BUG: Dentry 000000003edddb03{i=0,n=.reiserfs_priv} still in use (1) [unmount of squashfs loop0] ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6345 at fs/dcache.c:1676 umount_check+0x180/0x1bc fs/dcache.c:1667 Modules linked in: CPU: 0 PID: 6345 Comm: syz-executor.0 Not tainted 6.5.0-rc7-syzkaller-00071-gfe4469582053 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : umount_check+0x180/0x1bc fs/dcache.c:1667 lr : umount_check+0x180/0x1bc fs/dcache.c:1667 sp : ffff800096a47720 x29: ffff800096a47720 x28: ffff0000e91b9e78 x27: ffff0000e91b9e78 x26: ffff0000e91b9d60 x25: ffff0000e91b9e78 x24: ffff0000d2f4e000 x23: dfff800000000000 x22: ffff80008e43f1c0 x21: 0000000000000001 x20: 0000000000000000 x19: ffff0000e91b9be8 x18: ffff800096a46d80 x17: 657375206e69206c x16: ffff80008a572e30 x15: 0000000000000001 x14: 1ffff00012d48e3c x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000002 x10: 0000000000000000 x9 : 96a8e32b67ad3800 x8 : 96a8e32b67ad3800 x7 : fffffffffffc4e40 x6 : fffffffffffc4e00 x5 : ffff800096a47038 x4 : ffff80008e150c68 x3 : ffff800082ad5858 x2 : 0000000000000001 x1 : 0000000000000002 x0 : 0000000000000060 Call trace: umount_check+0x180/0x1bc fs/dcache.c:1667 d_walk+0x1b4/0x64c fs/dcache.c:1386 do_one_tree+0x44/0xfc fs/dcache.c:1683 shrink_dcache_for_umount+0x80/0x12c fs/dcache.c:1699 generic_shutdown_super+0x68/0x328 fs/super.c:471 kill_block_super+0x60/0xa0 fs/super.c:1417 deactivate_locked_super+0xac/0x124 fs/super.c:330 deactivate_super+0xe0/0x100 fs/super.c:361 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:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x2180/0x3c90 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:591 irq event stamp: 27296320 hardirqs last enabled at (27296319): [] __up_console_sem+0x60/0xb4 kernel/printk/printk.c:347 hardirqs last disabled at (27296320): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:436 softirqs last enabled at (27296314): [] softirq_handle_end kernel/softirq.c:399 [inline] softirqs last enabled at (27296314): [] __do_softirq+0xac0/0xd54 kernel/softirq.c:582 softirqs last disabled at (27296289): [] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80 ---[ end trace 0000000000000000 ]--- BUG: Dentry 000000003edddb03{i=0,n=.reiserfs_priv} still in use (1) [unmount of squashfs loop0] ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6345 at fs/dcache.c:1676 umount_check+0x180/0x1bc fs/dcache.c:1667 Modules linked in: CPU: 0 PID: 6345 Comm: syz-executor.0 Tainted: G W 6.5.0-rc7-syzkaller-00071-gfe4469582053 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : umount_check+0x180/0x1bc fs/dcache.c:1667 lr : umount_check+0x180/0x1bc fs/dcache.c:1667 sp : ffff800096a47720 x29: ffff800096a47720 x28: ffff0000e91b9e78 x27: ffff0000e91b9e78 x26: ffff0000e91b9d60 x25: ffff0000e91b9e78 x24: ffff0000d2f4e000 x23: dfff800000000000 x22: ffff80008e43f1c0 x21: 0000000000000001 x20: 0000000000000000 x19: ffff0000e91b9be8 x18: ffff800096a46d80 x17: 657375206e69206c x16: ffff80008a572e30 x15: 0000000000000001 x14: 1ffff00012d48e3c x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000003 x10: 0000000000000000 x9 : 96a8e32b67ad3800 x8 : 96a8e32b67ad3800 x7 : fffffffffffc5740 x6 : fffffffffffc5720 x5 : ffff800096a47038 x4 : ffff80008e151058 x3 : ffff800082ad5858 x2 : 0000000000000001 x1 : 0000000000000003 x0 : 0000000000000060 Call trace: umount_check+0x180/0x1bc fs/dcache.c:1667 d_walk+0x1b4/0x64c fs/dcache.c:1386 do_one_tree+0x44/0xfc fs/dcache.c:1683 shrink_dcache_for_umount+0x80/0x12c fs/dcache.c:1699 generic_shutdown_super+0x68/0x328 fs/super.c:471 kill_block_super+0x60/0xa0 fs/super.c:1417 deactivate_locked_super+0xac/0x124 fs/super.c:330 deactivate_super+0xe0/0x100 fs/super.c:361 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:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x2180/0x3c90 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:591 irq event stamp: 27296564 hardirqs last enabled at (27296563): [] __up_console_sem+0x60/0xb4 kernel/printk/printk.c:347 hardirqs last disabled at (27296564): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:436 softirqs last enabled at (27296544): [] softirq_handle_end kernel/softirq.c:399 [inline] softirqs last enabled at (27296544): [] __do_softirq+0xac0/0xd54 kernel/softirq.c:582 softirqs last disabled at (27296323): [] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80 ---[ end trace 0000000000000000 ]--- VFS: Busy inodes after unmount of loop0 (squashfs) ------------[ cut here ]------------ kernel BUG at fs/super.c:503! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 6345 Comm: syz-executor.0 Tainted: G W 6.5.0-rc7-syzkaller-00071-gfe4469582053 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : generic_shutdown_super+0x324/0x328 fs/super.c:501 lr : generic_shutdown_super+0x324/0x328 fs/super.c:501 sp : ffff800096a47870 x29: ffff800096a47870 x28: 1fffe0001b29167a x27: 0000000000000008 x26: 0000000000000003 x25: dfff800000000000 x24: 1fffe0001a5e9cf1 x23: dfff800000000000 x22: ffff80008a819540 x21: 0000000000000000 x20: ffff80008e43f1c0 x19: ffff0000d2f4e658 x18: ffff800096a470a0 x17: ffff80008e09d000 x16: ffff80008a4bedb0 x15: 0000000000000001 x14: 1ffff00012d48e2c x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000000 x9 : 96a8e32b67ad3800 x8 : 96a8e32b67ad3800 x7 : fffffffffffc60a0 x6 : fffffffffffc6080 x5 : ffff800096a47178 x4 : ffff80008e151448 x3 : ffff800080365c08 x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000032 Call trace: generic_shutdown_super+0x324/0x328 fs/super.c:501 kill_block_super+0x60/0xa0 fs/super.c:1417 deactivate_locked_super+0xac/0x124 fs/super.c:330 deactivate_super+0xe0/0x100 fs/super.c:361 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:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x2180/0x3c90 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:591 Code: b004e8a0 911a8000 aa1303e1 95d280d1 (d4210000) ---[ end trace 0000000000000000 ]---