BUG: Dentry ffff88813fc85990{i=0,n=.index} still in use (1) [unmount of sysfs sysfs] ------------[ cut here ]------------ WARNING: CPU: 1 PID: 25617 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 fs/dcache.c:1607 Modules linked in: CPU: 1 PID: 25617 Comm: syz-executor.3 Not tainted 5.10.77-syzkaller-01258-g76698ea35fd3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check+0x18d/0x1d0 fs/dcache.c:1607 Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 c0 41 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 8e d5 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff RSP: 0018:ffffc900015af730 EFLAGS: 00010296 RAX: 0000000000000055 RBX: ffffffff86672100 RCX: a03e860ddcf01e00 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffffc900015af760 R08: ffffffff81545288 R09: ffffed103ee295d8 R10: ffffed103ee295d8 R11: 0000000000000000 R12: ffff88813fc85990 R13: dffffc0000000000 R14: ffff88815676b3f8 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffed3346828 CR3: 000000012ef35000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x309/0x540 fs/dcache.c:1326 do_one_tree fs/dcache.c:1623 [inline] shrink_dcache_for_umount+0x8e/0x1b0 fs/dcache.c:1639 generic_shutdown_super+0x66/0x2c0 fs/super.c:447 kill_anon_super+0x3c/0x70 fs/super.c:1108 kernfs_kill_sb+0x14d/0x170 fs/kernfs/mount.c:383 sysfs_kill_sb+0x22/0x40 fs/sysfs/mount.c:86 deactivate_locked_super+0xb0/0x100 fs/super.c:335 deactivate_super+0xa5/0xd0 fs/super.c:366 cleanup_mnt+0x45f/0x510 fs/namespace.c:1118 __cleanup_mnt+0x19/0x20 fs/namespace.c:1125 task_work_run+0x147/0x1b0 kernel/task_work.c:154 exit_task_work include/linux/task_work.h:30 [inline] do_exit+0x70e/0x23a0 kernel/exit.c:813 do_group_exit+0x16a/0x2d0 kernel/exit.c:910 get_signal+0x133e/0x1f80 kernel/signal.c:2790 arch_do_signal+0x8d/0x620 arch/x86/kernel/signal.c:805 exit_to_user_mode_loop kernel/entry/common.c:161 [inline] exit_to_user_mode_prepare+0xaa/0xe0 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x24/0x40 kernel/entry/common.c:266 do_syscall_64+0x3d/0x70 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f164de04ae9 Code: Unable to access opcode bytes at RIP 0x7f164de04abf. RSP: 002b:00007f164bb7b218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f164df17f68 RCX: 00007f164de04ae9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f164df17f68 RBP: 00007f164df17f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f164df17f6c R13: 00007ffdbfb67b4f R14: 00007f164bb7b300 R15: 0000000000022000 ---[ end trace 5b3c96d25eeb0ffb ]--- BUG: Dentry ffff888119dc2000{i=0,n=.index} still in use (1) [unmount of sysfs sysfs] ------------[ cut here ]------------ WARNING: CPU: 1 PID: 25617 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 fs/dcache.c:1607 Modules linked in: CPU: 1 PID: 25617 Comm: syz-executor.3 Tainted: G W 5.10.77-syzkaller-01258-g76698ea35fd3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check+0x18d/0x1d0 fs/dcache.c:1607 Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 c0 41 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 8e d5 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff RSP: 0018:ffffc900015af730 EFLAGS: 00010296 RAX: 0000000000000055 RBX: ffffffff86672100 RCX: a03e860ddcf01e00 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffffc900015af760 R08: ffffffff81545288 R09: ffffed103ee295d8 R10: ffffed103ee295d8 R11: 0000000000000000 R12: ffff888119dc2000 R13: dffffc0000000000 R14: ffff88815676b3f8 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffed3346828 CR3: 000000012ef35000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x309/0x540 fs/dcache.c:1326 do_one_tree fs/dcache.c:1623 [inline] shrink_dcache_for_umount+0x8e/0x1b0 fs/dcache.c:1639 generic_shutdown_super+0x66/0x2c0 fs/super.c:447 kill_anon_super+0x3c/0x70 fs/super.c:1108 kernfs_kill_sb+0x14d/0x170 fs/kernfs/mount.c:383 sysfs_kill_sb+0x22/0x40 fs/sysfs/mount.c:86 deactivate_locked_super+0xb0/0x100 fs/super.c:335 deactivate_super+0xa5/0xd0 fs/super.c:366 cleanup_mnt+0x45f/0x510 fs/namespace.c:1118 __cleanup_mnt+0x19/0x20 fs/namespace.c:1125 task_work_run+0x147/0x1b0 kernel/task_work.c:154 exit_task_work include/linux/task_work.h:30 [inline] do_exit+0x70e/0x23a0 kernel/exit.c:813 do_group_exit+0x16a/0x2d0 kernel/exit.c:910 get_signal+0x133e/0x1f80 kernel/signal.c:2790 arch_do_signal+0x8d/0x620 arch/x86/kernel/signal.c:805 exit_to_user_mode_loop kernel/entry/common.c:161 [inline] exit_to_user_mode_prepare+0xaa/0xe0 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x24/0x40 kernel/entry/common.c:266 do_syscall_64+0x3d/0x70 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f164de04ae9 Code: Unable to access opcode bytes at RIP 0x7f164de04abf. RSP: 002b:00007f164bb7b218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f164df17f68 RCX: 00007f164de04ae9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f164df17f68 RBP: 00007f164df17f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f164df17f6c R13: 00007ffdbfb67b4f R14: 00007f164bb7b300 R15: 0000000000022000 ---[ end trace 5b3c96d25eeb0ffc ]--- BUG: Dentry ffff88810e40a220{i=0,n=.index} still in use (1) [unmount of sysfs sysfs] ------------[ cut here ]------------ WARNING: CPU: 1 PID: 25617 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 fs/dcache.c:1607 Modules linked in: CPU: 1 PID: 25617 Comm: syz-executor.3 Tainted: G W 5.10.77-syzkaller-01258-g76698ea35fd3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check+0x18d/0x1d0 fs/dcache.c:1607 Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 c0 41 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 8e d5 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff RSP: 0018:ffffc900015af730 EFLAGS: 00010296 RAX: 0000000000000055 RBX: ffffffff86672100 RCX: a03e860ddcf01e00 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffffc900015af760 R08: ffffffff81545288 R09: ffffed103ee295d8 R10: ffffed103ee295d8 R11: 0000000000000000 R12: ffff88810e40a220 R13: dffffc0000000000 R14: ffff88815676b3f8 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffed3346828 CR3: 000000012ef35000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x309/0x540 fs/dcache.c:1326 do_one_tree fs/dcache.c:1623 [inline] shrink_dcache_for_umount+0x8e/0x1b0 fs/dcache.c:1639 generic_shutdown_super+0x66/0x2c0 fs/super.c:447 kill_anon_super+0x3c/0x70 fs/super.c:1108 kernfs_kill_sb+0x14d/0x170 fs/kernfs/mount.c:383 sysfs_kill_sb+0x22/0x40 fs/sysfs/mount.c:86 deactivate_locked_super+0xb0/0x100 fs/super.c:335 deactivate_super+0xa5/0xd0 fs/super.c:366 cleanup_mnt+0x45f/0x510 fs/namespace.c:1118 __cleanup_mnt+0x19/0x20 fs/namespace.c:1125 task_work_run+0x147/0x1b0 kernel/task_work.c:154 exit_task_work include/linux/task_work.h:30 [inline] do_exit+0x70e/0x23a0 kernel/exit.c:813 do_group_exit+0x16a/0x2d0 kernel/exit.c:910 get_signal+0x133e/0x1f80 kernel/signal.c:2790 arch_do_signal+0x8d/0x620 arch/x86/kernel/signal.c:805 exit_to_user_mode_loop kernel/entry/common.c:161 [inline] exit_to_user_mode_prepare+0xaa/0xe0 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x24/0x40 kernel/entry/common.c:266 do_syscall_64+0x3d/0x70 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f164de04ae9 Code: Unable to access opcode bytes at RIP 0x7f164de04abf. RSP: 002b:00007f164bb7b218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f164df17f68 RCX: 00007f164de04ae9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f164df17f68 RBP: 00007f164df17f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f164df17f6c R13: 00007ffdbfb67b4f R14: 00007f164bb7b300 R15: 0000000000022000 ---[ end trace 5b3c96d25eeb0ffd ]--- BUG: Dentry ffff88810e70bcc0{i=0,n=.index} still in use (1) [unmount of sysfs sysfs] ------------[ cut here ]------------ WARNING: CPU: 1 PID: 25617 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 fs/dcache.c:1607 Modules linked in: CPU: 1 PID: 25617 Comm: syz-executor.3 Tainted: G W 5.10.77-syzkaller-01258-g76698ea35fd3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check+0x18d/0x1d0 fs/dcache.c:1607 Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 c0 41 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 8e d5 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff RSP: 0018:ffffc900015af730 EFLAGS: 00010296 RAX: 0000000000000055 RBX: ffffffff86672100 RCX: a03e860ddcf01e00 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffffc900015af760 R08: ffffffff81545288 R09: ffffed103ee295d8 R10: ffffed103ee295d8 R11: 0000000000000000 R12: ffff88810e70bcc0 R13: dffffc0000000000 R14: ffff88815676b3f8 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffed3346828 CR3: 000000012ef35000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x309/0x540 fs/dcache.c:1326 do_one_tree fs/dcache.c:1623 [inline] shrink_dcache_for_umount+0x8e/0x1b0 fs/dcache.c:1639 generic_shutdown_super+0x66/0x2c0 fs/super.c:447 kill_anon_super+0x3c/0x70 fs/super.c:1108 kernfs_kill_sb+0x14d/0x170 fs/kernfs/mount.c:383 sysfs_kill_sb+0x22/0x40 fs/sysfs/mount.c:86 deactivate_locked_super+0xb0/0x100 fs/super.c:335 deactivate_super+0xa5/0xd0 fs/super.c:366 cleanup_mnt+0x45f/0x510 fs/namespace.c:1118 __cleanup_mnt+0x19/0x20 fs/namespace.c:1125 task_work_run+0x147/0x1b0 kernel/task_work.c:154 exit_task_work include/linux/task_work.h:30 [inline] do_exit+0x70e/0x23a0 kernel/exit.c:813 do_group_exit+0x16a/0x2d0 kernel/exit.c:910 get_signal+0x133e/0x1f80 kernel/signal.c:2790 arch_do_signal+0x8d/0x620 arch/x86/kernel/signal.c:805 exit_to_user_mode_loop kernel/entry/common.c:161 [inline] exit_to_user_mode_prepare+0xaa/0xe0 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x24/0x40 kernel/entry/common.c:266 do_syscall_64+0x3d/0x70 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f164de04ae9 Code: Unable to access opcode bytes at RIP 0x7f164de04abf. RSP: 002b:00007f164bb7b218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f164df17f68 RCX: 00007f164de04ae9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f164df17f68 RBP: 00007f164df17f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f164df17f6c R13: 00007ffdbfb67b4f R14: 00007f164bb7b300 R15: 0000000000022000 ---[ end trace 5b3c96d25eeb0ffe ]--- BUG: Dentry ffff88810e70b440{i=0,n=.index} still in use (1) [unmount of sysfs sysfs] ------------[ cut here ]------------ WARNING: CPU: 1 PID: 25617 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 fs/dcache.c:1607 Modules linked in: CPU: 1 PID: 25617 Comm: syz-executor.3 Tainted: G W 5.10.77-syzkaller-01258-g76698ea35fd3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check+0x18d/0x1d0 fs/dcache.c:1607 Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 c0 41 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 8e d5 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff RSP: 0018:ffffc900015af730 EFLAGS: 00010296 RAX: 0000000000000055 RBX: ffffffff86672100 RCX: a03e860ddcf01e00 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffffc900015af760 R08: ffffffff81545288 R09: fffff520002b5e11 R10: fffff520002b5e11 R11: 0000000000000000 R12: ffff88810e70b440 R13: dffffc0000000000 R14: ffff88815676b3f8 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffed3346828 CR3: 000000012ef35000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x309/0x540 fs/dcache.c:1326 do_one_tree fs/dcache.c:1623 [inline] shrink_dcache_for_umount+0x8e/0x1b0 fs/dcache.c:1639 generic_shutdown_super+0x66/0x2c0 fs/super.c:447 kill_anon_super+0x3c/0x70 fs/super.c:1108 kernfs_kill_sb+0x14d/0x170 fs/kernfs/mount.c:383 sysfs_kill_sb+0x22/0x40 fs/sysfs/mount.c:86 deactivate_locked_super+0xb0/0x100 fs/super.c:335 deactivate_super+0xa5/0xd0 fs/super.c:366 cleanup_mnt+0x45f/0x510 fs/namespace.c:1118 __cleanup_mnt+0x19/0x20 fs/namespace.c:1125 task_work_run+0x147/0x1b0 kernel/task_work.c:154 exit_task_work include/linux/task_work.h:30 [inline] do_exit+0x70e/0x23a0 kernel/exit.c:813 do_group_exit+0x16a/0x2d0 kernel/exit.c:910 get_signal+0x133e/0x1f80 kernel/signal.c:2790 arch_do_signal+0x8d/0x620 arch/x86/kernel/signal.c:805 exit_to_user_mode_loop kernel/entry/common.c:161 [inline] exit_to_user_mode_prepare+0xaa/0xe0 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x24/0x40 kernel/entry/common.c:266 do_syscall_64+0x3d/0x70 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f164de04ae9 Code: Unable to access opcode bytes at RIP 0x7f164de04abf. RSP: 002b:00007f164bb7b218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f164df17f68 RCX: 00007f164de04ae9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f164df17f68 RBP: 00007f164df17f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f164df17f6c R13: 00007ffdbfb67b4f R14: 00007f164bb7b300 R15: 0000000000022000 ---[ end trace 5b3c96d25eeb0fff ]--- BUG: Dentry ffff88810e40b440{i=0,n=.index} still in use (1) [unmount of sysfs sysfs] ------------[ cut here ]------------ WARNING: CPU: 1 PID: 25617 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 fs/dcache.c:1607 Modules linked in: CPU: 1 PID: 25617 Comm: syz-executor.3 Tainted: G W 5.10.77-syzkaller-01258-g76698ea35fd3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check+0x18d/0x1d0 fs/dcache.c:1607 Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 c0 41 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 8e d5 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff RSP: 0018:ffffc900015af730 EFLAGS: 00010296 RAX: 0000000000000055 RBX: ffffffff86672100 RCX: a03e860ddcf01e00 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffffc900015af760 R08: ffffffff81545288 R09: fffff520002b5e11 R10: fffff520002b5e11 R11: 0000000000000000 R12: ffff88810e40b440 R13: dffffc0000000000 R14: ffff88815676b3f8 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffed3346828 CR3: 000000012ef35000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x309/0x540 fs/dcache.c:1326 do_one_tree fs/dcache.c:1623 [inline] shrink_dcache_for_umount+0x8e/0x1b0 fs/dcache.c:1639 generic_shutdown_super+0x66/0x2c0 fs/super.c:447 kill_anon_super+0x3c/0x70 fs/super.c:1108 kernfs_kill_sb+0x14d/0x170 fs/kernfs/mount.c:383 sysfs_kill_sb+0x22/0x40 fs/sysfs/mount.c:86 deactivate_locked_super+0xb0/0x100 fs/super.c:335 deactivate_super+0xa5/0xd0 fs/super.c:366 cleanup_mnt+0x45f/0x510 fs/namespace.c:1118 __cleanup_mnt+0x19/0x20 fs/namespace.c:1125 task_work_run+0x147/0x1b0 kernel/task_work.c:154 exit_task_work include/linux/task_work.h:30 [inline] do_exit+0x70e/0x23a0 kernel/exit.c:813 do_group_exit+0x16a/0x2d0 kernel/exit.c:910 get_signal+0x133e/0x1f80 kernel/signal.c:2790 arch_do_signal+0x8d/0x620 arch/x86/kernel/signal.c:805 exit_to_user_mode_loop kernel/entry/common.c:161 [inline] exit_to_user_mode_prepare+0xaa/0xe0 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x24/0x40 kernel/entry/common.c:266 do_syscall_64+0x3d/0x70 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f164de04ae9 Code: Unable to access opcode bytes at RIP 0x7f164de04abf. RSP: 002b:00007f164bb7b218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f164df17f68 RCX: 00007f164de04ae9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f164df17f68 RBP: 00007f164df17f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f164df17f6c R13: 00007ffdbfb67b4f R14: 00007f164bb7b300 R15: 0000000000022000 ---[ end trace 5b3c96d25eeb1000 ]--- BUG: Dentry ffff88813fc46ee0{i=0,n=.index} still in use (1) [unmount of sysfs sysfs] ------------[ cut here ]------------ WARNING: CPU: 1 PID: 25617 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 fs/dcache.c:1607 Modules linked in: CPU: 1 PID: 25617 Comm: syz-executor.3 Tainted: G W 5.10.77-syzkaller-01258-g76698ea35fd3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check+0x18d/0x1d0 fs/dcache.c:1607 Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 c0 41 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 8e d5 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff RSP: 0018:ffffc900015af730 EFLAGS: 00010296 RAX: 0000000000000055 RBX: ffffffff86672100 RCX: a03e860ddcf01e00 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffffc900015af760 R08: ffffffff81545288 R09: ffffed103ee295d8 R10: ffffed103ee295d8 R11: 0000000000000000 R12: ffff88813fc46ee0 R13: dffffc0000000000 R14: ffff88815676b3f8 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffed3346828 CR3: 000000012ef35000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x309/0x540 fs/dcache.c:1326 do_one_tree fs/dcache.c:1623 [inline] shrink_dcache_for_umount+0x8e/0x1b0 fs/dcache.c:1639 generic_shutdown_super+0x66/0x2c0 fs/super.c:447 kill_anon_super+0x3c/0x70 fs/super.c:1108 kernfs_kill_sb+0x14d/0x170 fs/kernfs/mount.c:383 sysfs_kill_sb+0x22/0x40 fs/sysfs/mount.c:86 deactivate_locked_super+0xb0/0x100 fs/super.c:335 deactivate_super+0xa5/0xd0 fs/super.c:366 cleanup_mnt+0x45f/0x510 fs/namespace.c:1118 __cleanup_mnt+0x19/0x20 fs/namespace.c:1125 task_work_run+0x147/0x1b0 kernel/task_work.c:154 exit_task_work include/linux/task_work.h:30 [inline] do_exit+0x70e/0x23a0 kernel/exit.c:813 do_group_exit+0x16a/0x2d0 kernel/exit.c:910 get_signal+0x133e/0x1f80 kernel/signal.c:2790 arch_do_signal+0x8d/0x620 arch/x86/kernel/signal.c:805 exit_to_user_mode_loop kernel/entry/common.c:161 [inline] exit_to_user_mode_prepare+0xaa/0xe0 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x24/0x40 kernel/entry/common.c:266 do_syscall_64+0x3d/0x70 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f164de04ae9 Code: Unable to access opcode bytes at RIP 0x7f164de04abf. RSP: 002b:00007f164bb7b218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f164df17f68 RCX: 00007f164de04ae9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f164df17f68 RBP: 00007f164df17f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f164df17f6c R13: 00007ffdbfb67b4f R14: 00007f164bb7b300 R15: 0000000000022000 ---[ end trace 5b3c96d25eeb1001 ]--- BUG: Dentry ffff88813e114110{i=0,n=.index} still in use (1) [unmount of sysfs sysfs] ------------[ cut here ]------------ WARNING: CPU: 1 PID: 25617 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 fs/dcache.c:1607 Modules linked in: CPU: 1 PID: 25617 Comm: syz-executor.3 Tainted: G W 5.10.77-syzkaller-01258-g76698ea35fd3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check+0x18d/0x1d0 fs/dcache.c:1607 Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 c0 41 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 8e d5 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff RSP: 0018:ffffc900015af730 EFLAGS: 00010296 RAX: 0000000000000055 RBX: ffffffff86672100 RCX: a03e860ddcf01e00 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffffc900015af760 R08: ffffffff81545288 R09: fffff520002b5e11 R10: fffff520002b5e11 R11: 0000000000000000 R12: ffff88813e114110 R13: dffffc0000000000 R14: ffff88815676b3f8 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffed3346828 CR3: 000000012ef35000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x309/0x540 fs/dcache.c:1326 do_one_tree fs/dcache.c:1623 [inline] shrink_dcache_for_umount+0x8e/0x1b0 fs/dcache.c:1639 generic_shutdown_super+0x66/0x2c0 fs/super.c:447 kill_anon_super+0x3c/0x70 fs/super.c:1108 kernfs_kill_sb+0x14d/0x170 fs/kernfs/mount.c:383 sysfs_kill_sb+0x22/0x40 fs/sysfs/mount.c:86 deactivate_locked_super+0xb0/0x100 fs/super.c:335 deactivate_super+0xa5/0xd0 fs/super.c:366 cleanup_mnt+0x45f/0x510 fs/namespace.c:1118 __cleanup_mnt+0x19/0x20 fs/namespace.c:1125 task_work_run+0x147/0x1b0 kernel/task_work.c:154 exit_task_work include/linux/task_work.h:30 [inline] do_exit+0x70e/0x23a0 kernel/exit.c:813 do_group_exit+0x16a/0x2d0 kernel/exit.c:910 get_signal+0x133e/0x1f80 kernel/signal.c:2790 arch_do_signal+0x8d/0x620 arch/x86/kernel/signal.c:805 exit_to_user_mode_loop kernel/entry/common.c:161 [inline] exit_to_user_mode_prepare+0xaa/0xe0 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x24/0x40 kernel/entry/common.c:266 do_syscall_64+0x3d/0x70 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f164de04ae9 Code: Unable to access opcode bytes at RIP 0x7f164de04abf. RSP: 002b:00007f164bb7b218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f164df17f68 RCX: 00007f164de04ae9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f164df17f68 RBP: 00007f164df17f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f164df17f6c R13: 00007ffdbfb67b4f R14: 00007f164bb7b300 R15: 0000000000022000 ---[ end trace 5b3c96d25eeb1002 ]--- BUG: Dentry ffff88813fc85990{i=0,n=.index} still in use (1) [unmount of sysfs sysfs] ------------[ cut here ]------------ WARNING: CPU: 0 PID: 25617 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 fs/dcache.c:1607 Modules linked in: CPU: 0 PID: 25617 Comm: syz-executor.3 Tainted: G W 5.10.77-syzkaller-01258-g76698ea35fd3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check+0x18d/0x1d0 fs/dcache.c:1607 Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 c0 41 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 8e d5 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff RSP: 0018:ffffc900015af730 EFLAGS: 00010296 RAX: 0000000000000055 RBX: ffffffff86672100 RCX: a03e860ddcf01e00 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000 RBP: ffffc900015af760 R08: ffffffff81545288 R09: ffffed103ee095d8 R10: ffffed103ee095d8 R11: 0000000000000000 R12: ffff88813fc85990 R13: dffffc0000000000 R14: ffff88815676b3f8 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000559c3f654fe0 CR3: 0000000134897000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x309/0x540 fs/dcache.c:1326 do_one_tree fs/dcache.c:1623 [inline] shrink_dcache_for_umount+0x8e/0x1b0 fs/dcache.c:1639 generic_shutdown_super+0x66/0x2c0 fs/super.c:447 kill_anon_super+0x3c/0x70 fs/super.c:1108 kernfs_kill_sb+0x14d/0x170 fs/kernfs/mount.c:383 sysfs_kill_sb+0x22/0x40 fs/sysfs/mount.c:86 deactivate_locked_super+0xb0/0x100 fs/super.c:335 deactivate_super+0xa5/0xd0 fs/super.c:366 cleanup_mnt+0x45f/0x510 fs/namespace.c:1118 __cleanup_mnt+0x19/0x20 fs/namespace.c:1125 task_work_run+0x147/0x1b0 kernel/task_work.c:154 exit_task_work include/linux/task_work.h:30 [inline] do_exit+0x70e/0x23a0 kernel/exit.c:813 do_group_exit+0x16a/0x2d0 kernel/exit.c:910 get_signal+0x133e/0x1f80 kernel/signal.c:2790 arch_do_signal+0x8d/0x620 arch/x86/kernel/signal.c:805 exit_to_user_mode_loop kernel/entry/common.c:161 [inline] exit_to_user_mode_prepare+0xaa/0xe0 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x24/0x40 kernel/entry/common.c:266 do_syscall_64+0x3d/0x70 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f164de04ae9 Code: Unable to access opcode bytes at RIP 0x7f164de04abf. RSP: 002b:00007f164bb7b218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f164df17f68 RCX: 00007f164de04ae9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f164df17f68 RBP: 00007f164df17f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f164df17f6c R13: 00007ffdbfb67b4f R14: 00007f164bb7b300 R15: 0000000000022000 ---[ end trace 5b3c96d25eeb1003 ]--- BUG: Dentry ffff888119dc2000{i=0,n=.index} still in use (1) [unmount of sysfs sysfs] ------------[ cut here ]------------ WARNING: CPU: 0 PID: 25617 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 fs/dcache.c:1607 Modules linked in: CPU: 0 PID: 25617 Comm: syz-executor.3 Tainted: G W 5.10.77-syzkaller-01258-g76698ea35fd3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check+0x18d/0x1d0 fs/dcache.c:1607 Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 c0 41 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 8e d5 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff RSP: 0018:ffffc900015af730 EFLAGS: 00010296 RAX: 0000000000000055 RBX: ffffffff86672100 RCX: a03e860ddcf01e00 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000 RBP: ffffc900015af760 R08: ffffffff81545288 R09: fffff520002b5e11 R10: fffff520002b5e11 R11: 0000000000000000 R12: ffff888119dc2000 R13: dffffc0000000000 R14: ffff88815676b3f8 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000559c3f654fe0 CR3: 0000000134897000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x309/0x540 fs/dcache.c:1326 do_one_tree fs/dcache.c:1623 [inline] shrink_dcache_for_umount+0x8e/0x1b0 fs/dcache.c:1639 generic_shutdown_super+0x66/0x2c0 fs/super.c:447 kill_anon_super+0x3c/0x70 fs/super.c:1108 kernfs_kill_sb+0x14d/0x170 fs/kernfs/mount.c:383 sysfs_kill_sb+0x22/0x40 fs/sysfs/mount.c:86 deactivate_locked_super+0xb0/0x100 fs/super.c:335 deactivate_super+0xa5/0xd0 fs/super.c:366 cleanup_mnt+0x45f/0x510 fs/namespace.c:1118 __cleanup_mnt+0x19/0x20 fs/namespace.c:1125 task_work_run+0x147/0x1b0 kernel/task_work.c:154 exit_task_work include/linux/task_work.h:30 [inline] do_exit+0x70e/0x23a0 kernel/exit.c:813 do_group_exit+0x16a/0x2d0 kernel/exit.c:910 get_signal+0x133e/0x1f80 kernel/signal.c:2790 arch_do_signal+0x8d/0x620 arch/x86/kernel/signal.c:805 exit_to_user_mode_loop kernel/entry/common.c:161 [inline] exit_to_user_mode_prepare+0xaa/0xe0 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x24/0x40 kernel/entry/common.c:266 do_syscall_64+0x3d/0x70 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f164de04ae9 Code: Unable to access opcode bytes at RIP 0x7f164de04abf. RSP: 002b:00007f164bb7b218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f164df17f68 RCX: 00007f164de04ae9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f164df17f68 RBP: 00007f164df17f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f164df17f6c R13: 00007ffdbfb67b4f R14: 00007f164bb7b300 R15: 0000000000022000 ---[ end trace 5b3c96d25eeb1004 ]--- BUG: Dentry ffff88810e40a220{i=0,n=.index} still in use (1) [unmount of sysfs sysfs] ------------[ cut here ]------------ WARNING: CPU: 0 PID: 25617 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 fs/dcache.c:1607 Modules linked in: CPU: 0 PID: 25617 Comm: syz-executor.3 Tainted: G W 5.10.77-syzkaller-01258-g76698ea35fd3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check+0x18d/0x1d0 fs/dcache.c:1607 Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 c0 41 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 8e d5 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff RSP: 0018:ffffc900015af730 EFLAGS: 00010296 RAX: 0000000000000055 RBX: ffffffff86672100 RCX: a03e860ddcf01e00 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000 RBP: ffffc900015af760 R08: ffffffff81545288 R09: fffff520002b5e11 R10: fffff520002b5e11 R11: 0000000000000000 R12: ffff88810e40a220 R13: dffffc0000000000 R14: ffff88815676b3f8 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000559c3f654fe0 CR3: 0000000134897000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x309/0x540 fs/dcache.c:1326 do_one_tree fs/dcache.c:1623 [inline] shrink_dcache_for_umount+0x8e/0x1b0 fs/dcache.c:1639 generic_shutdown_super+0x66/0x2c0 fs/super.c:447 kill_anon_super+0x3c/0x70 fs/super.c:1108 kernfs_kill_sb+0x14d/0x170 fs/kernfs/mount.c:383 sysfs_kill_sb+0x22/0x40 fs/sysfs/mount.c:86 deactivate_locked_super+0xb0/0x100 fs/super.c:335 deactivate_super+0xa5/0xd0 fs/super.c:366 cleanup_mnt+0x45f/0x510 fs/namespace.c:1118 __cleanup_mnt+0x19/0x20 fs/namespace.c:1125 task_work_run+0x147/0x1b0 kernel/task_work.c:154 exit_task_work include/linux/task_work.h:30 [inline] do_exit+0x70e/0x23a0 kernel/exit.c:813 do_group_exit+0x16a/0x2d0 kernel/exit.c:910 get_signal+0x133e/0x1f80 kernel/signal.c:2790 arch_do_signal+0x8d/0x620 arch/x86/kernel/signal.c:805 exit_to_user_mode_loop kernel/entry/common.c:161 [inline] exit_to_user_mode_prepare+0xaa/0xe0 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x24/0x40 kernel/entry/common.c:266 do_syscall_64+0x3d/0x70 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f164de04ae9 Code: Unable to access opcode bytes at RIP 0x7f164de04abf. RSP: 002b:00007f164bb7b218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f164df17f68 RCX: 00007f164de04ae9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f164df17f68 RBP: 00007f164df17f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f164df17f6c R13: 00007ffdbfb67b4f R14: 00007f164bb7b300 R15: 0000000000022000 ---[ end trace 5b3c96d25eeb1005 ]--- BUG: Dentry ffff88810e70bcc0{i=0,n=.index} still in use (1) [unmount of sysfs sysfs] ------------[ cut here ]------------ WARNING: CPU: 0 PID: 25617 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 fs/dcache.c:1607 Modules linked in: CPU: 0 PID: 25617 Comm: syz-executor.3 Tainted: G W 5.10.77-syzkaller-01258-g76698ea35fd3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check+0x18d/0x1d0 fs/dcache.c:1607 Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 c0 41 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 8e d5 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff RSP: 0018:ffffc900015af730 EFLAGS: 00010296 RAX: 0000000000000055 RBX: ffffffff86672100 RCX: a03e860ddcf01e00 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000 RBP: ffffc900015af760 R08: ffffffff81545288 R09: fffff520002b5e11 R10: fffff520002b5e11 R11: 0000000000000000 R12: ffff88810e70bcc0 R13: dffffc0000000000 R14: ffff88815676b3f8 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000559c3f654fe0 CR3: 0000000134897000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x309/0x540 fs/dcache.c:1326 do_one_tree fs/dcache.c:1623 [inline] shrink_dcache_for_umount+0x8e/0x1b0 fs/dcache.c:1639 generic_shutdown_super+0x66/0x2c0 fs/super.c:447 kill_anon_super+0x3c/0x70 fs/super.c:1108 kernfs_kill_sb+0x14d/0x170 fs/kernfs/mount.c:383 sysfs_kill_sb+0x22/0x40 fs/sysfs/mount.c:86 deactivate_locked_super+0xb0/0x100 fs/super.c:335 deactivate_super+0xa5/0xd0 fs/super.c:366 cleanup_mnt+0x45f/0x510 fs/namespace.c:1118 __cleanup_mnt+0x19/0x20 fs/namespace.c:1125 task_work_run+0x147/0x1b0 kernel/task_work.c:154 exit_task_work include/linux/task_work.h:30 [inline] do_exit+0x70e/0x23a0 kernel/exit.c:813 do_group_exit+0x16a/0x2d0 kernel/exit.c:910 get_signal+0x133e/0x1f80 kernel/signal.c:2790 arch_do_signal+0x8d/0x620 arch/x86/kernel/signal.c:805 exit_to_user_mode_loop kernel/entry/common.c:161 [inline] exit_to_user_mode_prepare+0xaa/0xe0 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x24/0x40 kernel/entry/common.c:266 do_syscall_64+0x3d/0x70 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f164de04ae9 Code: Unable to access opcode bytes at RIP 0x7f164de04abf. RSP: 002b:00007f164bb7b218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f164df17f68 RCX: 00007f164de04ae9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f164df17f68 RBP: 00007f164df17f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f164df17f6c R13: 00007ffdbfb67b4f R14: 00007f164bb7b300 R15: 0000000000022000 ---[ end trace 5b3c96d25eeb1006 ]--- BUG: Dentry ffff88810e70b440{i=0,n=.index} still in use (1) [unmount of sysfs sysfs] ------------[ cut here ]------------ WARNING: CPU: 0 PID: 25617 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 fs/dcache.c:1607 Modules linked in: CPU: 0 PID: 25617 Comm: syz-executor.3 Tainted: G W 5.10.77-syzkaller-01258-g76698ea35fd3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check+0x18d/0x1d0 fs/dcache.c:1607 Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 c0 41 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 8e d5 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff RSP: 0018:ffffc900015af730 EFLAGS: 00010296 RAX: 0000000000000055 RBX: ffffffff86672100 RCX: a03e860ddcf01e00 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000 RBP: ffffc900015af760 R08: ffffffff81545288 R09: fffff520002b5e11 R10: fffff520002b5e11 R11: 0000000000000000 R12: ffff88810e70b440 R13: dffffc0000000000 R14: ffff88815676b3f8 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000559c3f654fe0 CR3: 0000000134897000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x309/0x540 fs/dcache.c:1326 do_one_tree fs/dcache.c:1623 [inline] shrink_dcache_for_umount+0x8e/0x1b0 fs/dcache.c:1639 generic_shutdown_super+0x66/0x2c0 fs/super.c:447 kill_anon_super+0x3c/0x70 fs/super.c:1108 kernfs_kill_sb+0x14d/0x170 fs/kernfs/mount.c:383 sysfs_kill_sb+0x22/0x40 fs/sysfs/mount.c:86 deactivate_locked_super+0xb0/0x100 fs/super.c:335 deactivate_super+0xa5/0xd0 fs/super.c:366 cleanup_mnt+0x45f/0x510 fs/namespace.c:1118 __cleanup_mnt+0x19/0x20 fs/namespace.c:1125 task_work_run+0x147/0x1b0 kernel/task_work.c:154 exit_task_work include/linux/task_work.h:30 [inline] do_exit+0x70e/0x23a0 kernel/exit.c:813 do_group_exit+0x16a/0x2d0 kernel/exit.c:910 get_signal+0x133e/0x1f80 kernel/signal.c:2790 arch_do_signal+0x8d/0x620 arch/x86/kernel/signal.c:805 exit_to_user_mode_loop kernel/entry/common.c:161 [inline] exit_to_user_mode_prepare+0xaa/0xe0 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x24/0x40 kernel/entry/common.c:266 do_syscall_64+0x3d/0x70 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f164de04ae9 Code: Unable to access opcode bytes at RIP 0x7f164de04abf. RSP: 002b:00007f164bb7b218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f164df17f68 RCX: 00007f164de04ae9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f164df17f68 RBP: 00007f164df17f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f164df17f6c R13: 00007ffdbfb67b4f R14: 00007f164bb7b300 R15: 0000000000022000 ---[ end trace 5b3c96d25eeb1007 ]--- BUG: Dentry ffff88810e40b440{i=0,n=.index} still in use (1) [unmount of sysfs sysfs] ------------[ cut here ]------------ WARNING: CPU: 0 PID: 25617 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 fs/dcache.c:1607 Modules linked in: CPU: 0 PID: 25617 Comm: syz-executor.3 Tainted: G W 5.10.77-syzkaller-01258-g76698ea35fd3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check+0x18d/0x1d0 fs/dcache.c:1607 Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 c0 41 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 8e d5 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff RSP: 0018:ffffc900015af730 EFLAGS: 00010296 RAX: 0000000000000055 RBX: ffffffff86672100 RCX: a03e860ddcf01e00 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000 RBP: ffffc900015af760 R08: ffffffff81545288 R09: fffff520002b5e11 R10: fffff520002b5e11 R11: 0000000000000000 R12: ffff88810e40b440 R13: dffffc0000000000 R14: ffff88815676b3f8 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000559c3f654fe0 CR3: 0000000134897000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x309/0x540 fs/dcache.c:1326 do_one_tree fs/dcache.c:1623 [inline] shrink_dcache_for_umount+0x8e/0x1b0 fs/dcache.c:1639 generic_shutdown_super+0x66/0x2c0 fs/super.c:447 kill_anon_super+0x3c/0x70 fs/super.c:1108 kernfs_kill_sb+0x14d/0x170 fs/kernfs/mount.c:383 sysfs_kill_sb+0x22/0x40 fs/sysfs/mount.c:86 deactivate_locked_super+0xb0/0x100 fs/super.c:335 deactivate_super+0xa5/0xd0 fs/super.c:366 cleanup_mnt+0x45f/0x510 fs/namespace.c:1118 __cleanup_mnt+0x19/0x20 fs/namespace.c:1125 task_work_run+0x147/0x1b0 kernel/task_work.c:154 exit_task_work include/linux/task_work.h:30 [inline] do_exit+0x70e/0x23a0 kernel/exit.c:813 do_group_exit+0x16a/0x2d0 kernel/exit.c:910 get_signal+0x133e/0x1f80 kernel/signal.c:2790 arch_do_signal+0x8d/0x620 arch/x86/kernel/signal.c:805 exit_to_user_mode_loop kernel/entry/common.c:161 [inline] exit_to_user_mode_prepare+0xaa/0xe0 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x24/0x40 kernel/entry/common.c:266 do_syscall_64+0x3d/0x70 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f164de04ae9 Code: Unable to access opcode bytes at RIP 0x7f164de04abf. RSP: 002b:00007f164bb7b218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f164df17f68 RCX: 00007f164de04ae9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f164df17f68 RBP: 00007f164df17f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f164df17f6c R13: 00007ffdbfb67b4f R14: 00007f164bb7b300 R15: 0000000000022000 ---[ end trace 5b3c96d25eeb1008 ]--- BUG: Dentry ffff88813fc46ee0{i=0,n=.index} still in use (1) [unmount of sysfs sysfs] ------------[ cut here ]------------ WARNING: CPU: 0 PID: 25617 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 fs/dcache.c:1607 Modules linked in: CPU: 0 PID: 25617 Comm: syz-executor.3 Tainted: G W 5.10.77-syzkaller-01258-g76698ea35fd3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check+0x18d/0x1d0 fs/dcache.c:1607 Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 c0 41 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 8e d5 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff RSP: 0018:ffffc900015af730 EFLAGS: 00010296 RAX: 0000000000000055 RBX: ffffffff86672100 RCX: a03e860ddcf01e00 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000 RBP: ffffc900015af760 R08: ffffffff81545288 R09: fffff520002b5e11 R10: fffff520002b5e11 R11: 0000000000000000 R12: ffff88813fc46ee0 R13: dffffc0000000000 R14: ffff88815676b3f8 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000559c3f654fe0 CR3: 0000000134897000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x309/0x540 fs/dcache.c:1326 do_one_tree fs/dcache.c:1623 [inline] shrink_dcache_for_umount+0x8e/0x1b0 fs/dcache.c:1639 generic_shutdown_super+0x66/0x2c0 fs/super.c:447 kill_anon_super+0x3c/0x70 fs/super.c:1108 kernfs_kill_sb+0x14d/0x170 fs/kernfs/mount.c:383 sysfs_kill_sb+0x22/0x40 fs/sysfs/mount.c:86 deactivate_locked_super+0xb0/0x100 fs/super.c:335 deactivate_super+0xa5/0xd0 fs/super.c:366 cleanup_mnt+0x45f/0x510 fs/namespace.c:1118 __cleanup_mnt+0x19/0x20 fs/namespace.c:1125 task_work_run+0x147/0x1b0 kernel/task_work.c:154 exit_task_work include/linux/task_work.h:30 [inline] do_exit+0x70e/0x23a0 kernel/exit.c:813 do_group_exit+0x16a/0x2d0 kernel/exit.c:910 get_signal+0x133e/0x1f80 kernel/signal.c:2790 arch_do_signal+0x8d/0x620 arch/x86/kernel/signal.c:805 exit_to_user_mode_loop kernel/entry/common.c:161 [inline] exit_to_user_mode_prepare+0xaa/0xe0 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x24/0x40 kernel/entry/common.c:266 do_syscall_64+0x3d/0x70 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f164de04ae9 Code: Unable to access opcode bytes at RIP 0x7f164de04abf. RSP: 002b:00007f164bb7b218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f164df17f68 RCX: 00007f164de04ae9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f164df17f68 RBP: 00007f164df17f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f164df17f6c R13: 00007ffdbfb67b4f R14: 00007f164bb7b300 R15: 0000000000022000 ---[ end trace 5b3c96d25eeb1009 ]--- BUG: Dentry ffff88813e114110{i=0,n=.index} still in use (1) [unmount of sysfs sysfs] ------------[ cut here ]------------ WARNING: CPU: 0 PID: 25617 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 fs/dcache.c:1607 Modules linked in: CPU: 0 PID: 25617 Comm: syz-executor.3 Tainted: G W 5.10.77-syzkaller-01258-g76698ea35fd3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:umount_check+0x18d/0x1d0 fs/dcache.c:1607 Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 c0 41 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 8e d5 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff RSP: 0018:ffffc900015af730 EFLAGS: 00010296 RAX: 0000000000000055 RBX: ffffffff86672100 RCX: a03e860ddcf01e00 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000 RBP: ffffc900015af760 R08: ffffffff81545288 R09: fffff520002b5e11 R10: fffff520002b5e11 R11: 0000000000000000 R12: ffff88813e114110 R13: dffffc0000000000 R14: ffff88815676b3f8 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000559c3f654fe0 CR3: 0000000134897000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: d_walk+0x309/0x540 fs/dcache.c:1326 do_one_tree fs/dcache.c:1623 [inline] shrink_dcache_for_umount+0x8e/0x1b0 fs/dcache.c:1639 generic_shutdown_super+0x66/0x2c0 fs/super.c:447 kill_anon_super+0x3c/0x70 fs/super.c:1108 kernfs_kill_sb+0x14d/0x170 fs/kernfs/mount.c:383 sysfs_kill_sb+0x22/0x40 fs/sysfs/mount.c:86 deactivate_locked_super+0xb0/0x100 fs/super.c:335 deactivate_super+0xa5/0xd0 fs/super.c:366 cleanup_mnt+0x45f/0x510 fs/namespace.c:1118 __cleanup_mnt+0x19/0x20 fs/namespace.c:1125 task_work_run+0x147/0x1b0 kernel/task_work.c:154 exit_task_work include/linux/task_work.h:30 [inline] do_exit+0x70e/0x23a0 kernel/exit.c:813 do_group_exit+0x16a/0x2d0 kernel/exit.c:910 get_signal+0x133e/0x1f80 kernel/signal.c:2790 arch_do_signal+0x8d/0x620 arch/x86/kernel/signal.c:805 exit_to_user_mode_loop kernel/entry/common.c:161 [inline] exit_to_user_mode_prepare+0xaa/0xe0 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x24/0x40 kernel/entry/common.c:266 do_syscall_64+0x3d/0x70 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f164de04ae9 Code: Unable to access opcode bytes at RIP 0x7f164de04abf. RSP: 002b:00007f164bb7b218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f164df17f68 RCX: 00007f164de04ae9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f164df17f68 RBP: 00007f164df17f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f164df17f6c R13: 00007ffdbfb67b4f R14: 00007f164bb7b300 R15: 0000000000022000 ---[ end trace 5b3c96d25eeb100a ]--- VFS: Busy inodes after unmount of sysfs. Self-destruct in 5 seconds. Have a nice day...