------------[ cut here ]------------ WARNING: CPU: 0 PID: 4008 at fs/btrfs/block-group.c:135 btrfs_put_block_group+0x248/0x288 fs/btrfs/block-group.c:135 Modules linked in: CPU: 0 PID: 4008 Comm: syz-executor.5 Not tainted 5.15.109-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_put_block_group+0x248/0x288 fs/btrfs/block-group.c:135 lr : btrfs_put_block_group+0x248/0x288 fs/btrfs/block-group.c:135 sp : ffff80001cd17750 x29: ffff80001cd17750 x28: dfff800000000000 x27: ffff800014f7c820 x26: 0000000000000002 x25: 0000000000000001 x24: ffff0000db489800 x23: 0000000000000000 x22: 1fffe0001b69132c x21: dfff800000000000 x20: 0000000000003000 x19: ffff0000db489800 x18: 0000000000000000 x17: ff8080000a207b08 x16: ffff80000824cb7c x15: ffff80000a207b08 x14: 00000000ffff8000 x13: ffffffffffffffff x12: 0000000000000000 x11: ff8080000a1f3a00 x10: 0000000000000000 x9 : ffff80000a1f3a00 x8 : ffff0000c8c63580 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : ffff80000a1f37e4 x2 : 0000000000000001 x1 : 0000000000003000 x0 : 0000000000000000 Call trace: btrfs_put_block_group+0x248/0x288 fs/btrfs/block-group.c:135 btrfs_free_block_groups+0x730/0xb54 fs/btrfs/block-group.c:3916 close_ctree+0x61c/0x860 fs/btrfs/disk-io.c:4498 btrfs_put_super+0x40/0x50 fs/btrfs/super.c:340 generic_shutdown_super+0x130/0x29c fs/super.c:475 kill_anon_super+0x4c/0x74 fs/super.c:1067 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2391 deactivate_locked_super+0xb8/0x13c fs/super.c:335 deactivate_super+0x108/0x128 fs/super.c:366 cleanup_mnt+0x3c0/0x474 fs/namespace.c:1143 __cleanup_mnt+0x20/0x30 fs/namespace.c:1150 task_work_run+0x130/0x1e4 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x262c/0x32b8 arch/arm64/kernel/signal.c:946 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:597 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 1603936 hardirqs last enabled at (1603935): [] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (1603936): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:387 softirqs last enabled at (1603504): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (1603504): [] __do_softirq+0xb5c/0xe20 kernel/softirq.c:587 softirqs last disabled at (1603257): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (1603257): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (1603257): [] __irq_exit_rcu+0x28c/0x534 kernel/softirq.c:636 ---[ end trace af956d180991e4c3 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4008 at fs/btrfs/block-group.c:3934 btrfs_free_block_groups+0x850/0xb54 fs/btrfs/block-group.c:3933 Modules linked in: CPU: 0 PID: 4008 Comm: syz-executor.5 Tainted: G W 5.15.109-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_free_block_groups+0x850/0xb54 fs/btrfs/block-group.c:3933 lr : btrfs_free_block_groups+0xa8c/0xb54 fs/btrfs/block-group.c:3933 sp : ffff80001cd17780 x29: ffff80001cd177a0 x28: dfff800000000000 x27: ffff800014f7c820 x26: 1fffe0001a6e0a20 x25: 0000000000000001 x24: 0000000000028000 x23: ffff0000ce9aa800 x22: ffff0000ce9aa8a8 x21: ffff0000d37059d0 x20: ffff0000d3705100 x19: ffff0000d3704000 x18: 1fffe00019d3550a x17: ff8080000a207b08 x16: ffff80000824cb7c x15: ffff80000a207b08 x14: 1ffff0000291a06a x13: ffffffffffffffff x12: 0000000000000000 x11: ff8080000a207f80 x10: 0000000000000000 x9 : ffff80000a207f80 x8 : ffff0000c8c63580 x7 : ffff80000a1ee2a4 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff80000830408c x2 : 0000000000000001 x1 : 0000000000028000 x0 : 0000000000000000 Call trace: btrfs_free_block_groups+0x850/0xb54 fs/btrfs/block-group.c:3933 close_ctree+0x61c/0x860 fs/btrfs/disk-io.c:4498 btrfs_put_super+0x40/0x50 fs/btrfs/super.c:340 generic_shutdown_super+0x130/0x29c fs/super.c:475 kill_anon_super+0x4c/0x74 fs/super.c:1067 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2391 deactivate_locked_super+0xb8/0x13c fs/super.c:335 deactivate_super+0x108/0x128 fs/super.c:366 cleanup_mnt+0x3c0/0x474 fs/namespace.c:1143 __cleanup_mnt+0x20/0x30 fs/namespace.c:1150 task_work_run+0x130/0x1e4 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x262c/0x32b8 arch/arm64/kernel/signal.c:946 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:597 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 1604354 hardirqs last enabled at (1604353): [] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (1604354): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:387 softirqs last enabled at (1604304): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (1604304): [] __do_softirq+0xb5c/0xe20 kernel/softirq.c:587 softirqs last disabled at (1603939): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (1603939): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (1603939): [] __irq_exit_rcu+0x28c/0x534 kernel/softirq.c:636 ---[ end trace af956d180991e4c4 ]--- BTRFS info (device loop5): space_info 5 has 3043328 free, is not full BTRFS info (device loop5): space_info total=3276800, used=57344, pinned=0, reserved=12288, may_use=163840, readonly=0 zone_unusable=0 BTRFS info (device loop5): global_block_rsv: size 0 reserved 0 BTRFS info (device loop5): trans_block_rsv: size 0 reserved 0 BTRFS info (device loop5): chunk_block_rsv: size 0 reserved 0 BTRFS info (device loop5): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop5): delayed_refs_rsv: size 0 reserved 0 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4008 at fs/btrfs/block-group.c:3946 btrfs_free_block_groups+0xa5c/0xb54 fs/btrfs/block-group.c:3946 Modules linked in: CPU: 1 PID: 4008 Comm: syz-executor.5 Tainted: G W 5.15.109-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_free_block_groups+0xa5c/0xb54 fs/btrfs/block-group.c:3946 lr : btrfs_free_block_groups+0xa5c/0xb54 fs/btrfs/block-group.c:3946 sp : ffff80001cd17780 x29: ffff80001cd177a0 x28: dfff800000000000 x27: ffff800014f7c820 x26: 1fffe0001a6e0a20 x25: 0000000000000001 x24: 0000000000003000 x23: ffff0000ce9aa800 x22: ffff0000ce9aa8a8 x21: ffff0000d37059d0 x20: ffff0000d3705100 x19: dead000000000100 x18: 1fffe00036903d8e x17: 1fffe00036903d8e x16: ffff8000082eb0ac x15: ffff80001496f0c0 x14: 1ffff0000291a06a x13: ffffffffffffffff x12: 0000000000000000 x11: ff8080000a207f50 x10: 0000000000000000 x9 : ffff80000a207f50 x8 : ffff0000c8c63580 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff8000082571b4 x2 : 0000000000000001 x1 : 0000000000003000 x0 : 0000000000000000 Call trace: btrfs_free_block_groups+0xa5c/0xb54 fs/btrfs/block-group.c:3946 close_ctree+0x61c/0x860 fs/btrfs/disk-io.c:4498 btrfs_put_super+0x40/0x50 fs/btrfs/super.c:340 generic_shutdown_super+0x130/0x29c fs/super.c:475 kill_anon_super+0x4c/0x74 fs/super.c:1067 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2391 deactivate_locked_super+0xb8/0x13c fs/super.c:335 deactivate_super+0x108/0x128 fs/super.c:366 cleanup_mnt+0x3c0/0x474 fs/namespace.c:1143 __cleanup_mnt+0x20/0x30 fs/namespace.c:1150 task_work_run+0x130/0x1e4 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x262c/0x32b8 arch/arm64/kernel/signal.c:946 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:597 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 1605138 hardirqs last enabled at (1605137): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1338 [inline] hardirqs last enabled at (1605137): [] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:4780 hardirqs last disabled at (1605138): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:387 softirqs last enabled at (1605070): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (1605070): [] __do_softirq+0xb5c/0xe20 kernel/softirq.c:587 softirqs last disabled at (1604733): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (1604733): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (1604733): [] __irq_exit_rcu+0x28c/0x534 kernel/softirq.c:636 ---[ end trace af956d180991e4c5 ]--- BTRFS info (device loop5): space_info 5 has 3043328 free, is not full BTRFS info (device loop5): space_info total=3276800, used=57344, pinned=0, reserved=12288, may_use=163840, readonly=0 zone_unusable=0 BTRFS info (device loop5): global_block_rsv: size 0 reserved 0 BTRFS info (device loop5): trans_block_rsv: size 0 reserved 0 BTRFS info (device loop5): chunk_block_rsv: size 0 reserved 0 BTRFS info (device loop5): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop5): delayed_refs_rsv: size 0 reserved 0 VFS: Busy inodes after unmount of loop5. Self-destruct in 5 seconds. Have a nice day... XFS (loop5): Unmounting Filesystem