BTRFS info (device loop1 state EA): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6550 at fs/btrfs/space-info.h:265 btrfs_space_info_update_bytes_may_use+0x354/0x6a4 fs/btrfs/space-info.h:-1 Modules linked in: CPU: 0 UID: 0 PID: 6550 Comm: syz-executor Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : btrfs_space_info_update_bytes_may_use+0x354/0x6a4 fs/btrfs/space-info.h:-1 lr : btrfs_space_info_update_bytes_may_use+0x350/0x6a4 fs/btrfs/space-info.h:265 sp : ffff8000a42d7630 x29: ffff8000a42d7650 x28: 1fffe0001bec3e10 x27: dfff800000000000 x26: ffff80008f5ae768 x25: 0000000000000001 x24: ffff0000cb7abd90 x23: 0000000000000005 x22: 000000000015f000 x21: 0000000000160000 x20: ffff0000df61f080 x19: 0000000000000000 x18: 1fffe000337d4a90 x17: 7261772e756e672e x16: ffff800082defcc0 x15: ffff70001485aebc x14: 1ffff0001485aebc x13: 0000000000000004 x12: ffffffffffffffff x11: ffff70001485aebc x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000cb7abd80 x7 : ffff80008259ac84 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff800080537f90 x2 : 0000000000000001 x1 : 0000000000160000 x0 : 000000000015f000 Call trace: btrfs_space_info_update_bytes_may_use+0x354/0x6a4 fs/btrfs/space-info.h:-1 (P) btrfs_space_info_free_bytes_may_use fs/btrfs/space-info.h:297 [inline] block_rsv_release_bytes fs/btrfs/block-rsv.c:153 [inline] btrfs_block_rsv_release+0x3a4/0x490 fs/btrfs/block-rsv.c:292 btrfs_release_global_block_rsv+0x38/0x22c fs/btrfs/block-rsv.c:457 btrfs_free_block_groups+0xa4c/0xd10 fs/btrfs/block-group.c:4574 close_ctree+0x650/0x113c fs/btrfs/disk-io.c:4426 btrfs_put_super+0x1ac/0x1c0 fs/btrfs/super.c:74 generic_shutdown_super+0x12c/0x2b8 fs/super.c:642 kill_anon_super+0x4c/0x7c fs/super.c:1288 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2134 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1318 __cleanup_mnt+0x20/0x30 fs/namespace.c:1325 task_work_run+0x1dc/0x260 kernel/task_work.c:227 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x524/0x1a14 kernel/exit.c:966 do_group_exit+0x194/0x22c kernel/exit.c:1107 __do_sys_exit_group kernel/exit.c:1118 [inline] __se_sys_exit_group kernel/exit.c:1116 [inline] pid_child_should_wake+0x0/0x1dc kernel/exit.c:1116 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x254 arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 309228 hardirqs last enabled at (309227): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (309228): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (306436): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (306436): [] __tun_set_ebpf+0x114/0x1bc drivers/net/tun.c:2241 softirqs last disabled at (306434): [] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (306434): [] __tun_set_ebpf+0xa0/0x1bc drivers/net/tun.c:2237 ---[ end trace 0000000000000000 ]---