BTRFS info (device loop4): last unmount of filesystem 24007cd3-996e-43b3-9a70-6139700afa14 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6554 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: 6554 Comm: syz-executor Not tainted 6.17.0-rc1-syzkaller-g8f5ae30d69d7 #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 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 : ffff8000a1567830 x29: ffff8000a1567850 x28: 1fffe0001aacaa10 x27: dfff800000000000 x26: ffff80008f7be768 x25: 0000000000000001 x24: ffff0000cb30bd10 x23: 0000000000000005 x22: 000000000015f000 x21: 0000000000160000 x20: ffff0000d5655080 x19: 0000000000000000 x18: 0000000000000000 x17: ffff80010c5d9000 x16: ffff80008b007230 x15: ffff7000142acefc x14: 1ffff000142acefc x13: 0000000000000004 x12: ffffffffffffffff x11: ffff7000142acefc x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000cb30bd00 x7 : ffff80008255b224 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000805355f0 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:4567 close_ctree+0x644/0x1130 fs/btrfs/disk-io.c:4424 btrfs_put_super+0x1ac/0x1c0 fs/btrfs/super.c:74 generic_shutdown_super+0x12c/0x2b8 fs/super.c:643 kill_anon_super+0x4c/0x7c fs/super.c:1282 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2114 deactivate_locked_super+0xc4/0x12c fs/super.c:474 deactivate_super+0xe0/0x100 fs/super.c:507 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1378 __cleanup_mnt+0x20/0x30 fs/namespace.c:1385 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+0x174/0x1f4 arch/arm64/kernel/entry-common.c:155 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:173 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:182 [inline] el0_svc+0xb8/0x180 arch/arm64/kernel/entry-common.c:880 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 720090 hardirqs last enabled at (720089): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (720090): [] el1_brk64+0x1c/0x48 arch/arm64/kernel/entry-common.c:574 softirqs last enabled at (718576): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (718574): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- syz-executor: attempt to access beyond end of device loop4: rw=2049, sector=45104, nr_sectors = 8 limit=40427 CPU: 0 UID: 0 PID: 6554 Comm: syz-executor Tainted: G W 6.17.0-rc1-syzkaller-g8f5ae30d69d7 #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 Call trace: show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C) __dump_stack+0x30/0x40 lib/dump_stack.c:94 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120 dump_stack+0x1c/0x28 lib/dump_stack.c:129 f2fs_handle_critical_error+0x34c/0x4b8 fs/f2fs/super.c:4542 f2fs_stop_checkpoint+0x5c/0x70 fs/f2fs/checkpoint.c:35 f2fs_write_end_io+0x768/0xa70 fs/f2fs/data.c:351 bio_endio+0x804/0x840 block/bio.c:1651 submit_bio_noacct+0x158/0x176c block/blk-core.c:881 submit_bio+0x3b4/0x550 block/blk-core.c:916 f2fs_submit_write_bio+0x13c/0x324 fs/f2fs/data.c:525 __submit_merged_bio+0x254/0x704 fs/f2fs/data.c:540 __f2fs_submit_merged_write fs/f2fs/data.c:635 [inline] __submit_merged_write_cond+0x23c/0x4ac fs/f2fs/data.c:657 f2fs_submit_merged_write_cond fs/f2fs/data.c:674 [inline] f2fs_write_cache_pages fs/f2fs/data.c:3209 [inline] __f2fs_write_data_pages fs/f2fs/data.c:3290 [inline] f2fs_write_data_pages+0x1d28/0x2634 fs/f2fs/data.c:3317 do_writepages+0x270/0x468 mm/page-writeback.c:2634 filemap_fdatawrite_wbc mm/filemap.c:386 [inline] __filemap_fdatawrite_range mm/filemap.c:419 [inline] __filemap_fdatawrite mm/filemap.c:425 [inline] filemap_fdatawrite+0x14c/0x1f4 mm/filemap.c:430 f2fs_sync_dirty_inodes+0x2b8/0x788 fs/f2fs/checkpoint.c:1108 block_operations fs/f2fs/checkpoint.c:1247 [inline] f2fs_write_checkpoint+0x690/0x16a0 fs/f2fs/checkpoint.c:1638 kill_f2fs_super+0x21c/0x584 fs/f2fs/super.c:5347 deactivate_locked_super+0xc4/0x12c fs/super.c:474 deactivate_super+0xe0/0x100 fs/super.c:507 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1378 __cleanup_mnt+0x20/0x30 fs/namespace.c:1385 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+0x174/0x1f4 arch/arm64/kernel/entry-common.c:155 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:173 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:182 [inline] el0_svc+0xb8/0x180 arch/arm64/kernel/entry-common.c:880 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 F2FS-fs (loop4): Stopped filesystem due to reason: 3