F2FS-fs (loop4): Mismatch valid blocks 0 vs. 2 ====================================================== WARNING: possible circular locking dependency detected 6.2.0-rc7-syzkaller-17907-g2d3827b3f393 #0 Not tainted ------------------------------------------------------ syz-executor.4/31499 is trying to acquire lock: ffff0001265a2088 (&sbi->sb_lock){++++}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2213 [inline] ffff0001265a2088 (&sbi->sb_lock){++++}-{3:3}, at: f2fs_handle_error+0x9c/0x178 fs/f2fs/super.c:3926 but task is already holding lock: ffff00011cf0f3b8 (&array[i].journal_rwsem){++++}-{3:3}, at: build_sit_entries+0x564/0x9bc fs/f2fs/segment.c:4450 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #5 (&array[i].journal_rwsem){++++}-{3:3}: down_read+0x5c/0x78 kernel/locking/rwsem.c:1509 scan_curseg_cache fs/f2fs/node.c:2404 [inline] __f2fs_build_free_nids fs/f2fs/node.c:2516 [inline] f2fs_build_free_nids+0x79c/0x8f8 fs/f2fs/node.c:2531 f2fs_build_node_manager+0xd08/0xf00 fs/f2fs/node.c:3316 f2fs_fill_super+0x18c0/0x23d0 fs/f2fs/super.c:4334 mount_bdev+0x1b8/0x210 fs/super.c:1359 f2fs_mount+0x44/0x58 fs/f2fs/super.c:4608 legacy_get_tree+0x30/0x74 fs/fs_context.c:610 vfs_get_tree+0x40/0x140 fs/super.c:1489 do_new_mount+0x1dc/0x4e4 fs/namespace.c:3145 path_mount+0x348/0x86c fs/namespace.c:3475 do_mount fs/namespace.c:3488 [inline] __do_sys_mount fs/namespace.c:3697 [inline] __se_sys_mount fs/namespace.c:3674 [inline] __arm64_sys_mount+0x2c4/0x3c4 fs/namespace.c:3674 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x64/0x178 arch/arm64/kernel/syscall.c:52 el0_svc_common+0xbc/0x180 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x110 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x14c arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 -> #4 (&nm_i->nat_tree_lock){++++}-{3:3}: down_read+0x5c/0x78 kernel/locking/rwsem.c:1509 f2fs_down_read fs/f2fs/f2fs.h:2188 [inline] f2fs_get_node_info+0x5c/0x5f4 fs/f2fs/node.c:564 f2fs_do_write_data_page+0x5b4/0x1020 fs/f2fs/data.c:2728 f2fs_write_single_data_page+0x870/0xd28 fs/f2fs/data.c:2863 f2fs_write_cache_pages fs/f2fs/data.c:3115 [inline] __f2fs_write_data_pages fs/f2fs/data.c:3265 [inline] f2fs_write_data_pages+0x830/0x11ec fs/f2fs/data.c:3292 do_writepages+0x134/0x26c mm/page-writeback.c:2581 filemap_fdatawrite_wbc+0xac/0xd0 mm/filemap.c:388 __filemap_fdatawrite_range mm/filemap.c:421 [inline] file_write_and_wait_range+0xa8/0x158 mm/filemap.c:777 f2fs_do_sync_file+0x320/0xcd0 fs/f2fs/file.c:275 f2fs_sync_file+0x6c/0x90 fs/f2fs/file.c:393 vfs_fsync_range+0xb0/0xcc fs/sync.c:188 generic_write_sync include/linux/fs.h:2885 [inline] f2fs_file_write_iter+0x3c0/0x1594 fs/f2fs/file.c:4721 call_write_iter include/linux/fs.h:2189 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x2bc/0x44c fs/read_write.c:584 ksys_write+0xb4/0x160 fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __arm64_sys_write+0x24/0x34 fs/read_write.c:646 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x64/0x178 arch/arm64/kernel/syscall.c:52 el0_svc_common+0xbc/0x180 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x110 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x14c arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 -> #3 (&sbi->cp_rwsem){++++}-{3:3}: down_read+0x5c/0x78 kernel/locking/rwsem.c:1509 f2fs_down_read fs/f2fs/f2fs.h:2188 [inline] f2fs_lock_op fs/f2fs/f2fs.h:2231 [inline] f2fs_do_truncate_blocks+0x164/0xa30 fs/f2fs/file.c:688 f2fs_truncate_blocks+0x9c/0x1dc fs/f2fs/file.c:751 f2fs_truncate+0x2ec/0x4dc fs/f2fs/file.c:803 f2fs_setattr+0x5c4/0x784 fs/f2fs/file.c:1010 notify_change+0x730/0x7c8 fs/attr.c:482 do_truncate+0x10c/0x154 fs/open.c:65 handle_truncate fs/namei.c:3216 [inline] do_open fs/namei.c:3561 [inline] path_openat+0x1078/0x1330 fs/namei.c:3714 do_filp_open+0xd0/0x1a8 fs/namei.c:3741 do_sys_openat2+0xb8/0x22c fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_openat fs/open.c:1342 [inline] __se_sys_openat fs/open.c:1337 [inline] __arm64_sys_openat+0xb0/0xe0 fs/open.c:1337 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x64/0x178 arch/arm64/kernel/syscall.c:52 el0_svc_common+0xbc/0x180 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x110 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x14c arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 -> #2 (mapping.invalidate_lock#4){++++}-{3:3}: down_read+0x5c/0x78 kernel/locking/rwsem.c:1509 filemap_invalidate_lock_shared include/linux/fs.h:811 [inline] filemap_fault+0x220/0xaa4 mm/filemap.c:3146 f2fs_filemap_fault+0x34/0x29c fs/f2fs/file.c:44 __do_fault+0x74/0x32c mm/memory.c:4163 do_shared_fault mm/memory.c:4569 [inline] do_fault mm/memory.c:4647 [inline] handle_pte_fault mm/memory.c:4931 [inline] __handle_mm_fault mm/memory.c:5073 [inline] handle_mm_fault+0xca4/0x241c mm/memory.c:5219 __do_page_fault arch/arm64/mm/fault.c:512 [inline] do_page_fault+0x4b4/0x808 arch/arm64/mm/fault.c:612 do_translation_fault+0x78/0xac arch/arm64/mm/fault.c:695 do_mem_abort+0x54/0x130 arch/arm64/mm/fault.c:831 el0_da+0x70/0x168 arch/arm64/kernel/entry-common.c:515 el0t_64_sync_handler+0xcc/0xf0 arch/arm64/kernel/entry-common.c:658 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 -> #1 (&mm->mmap_lock){++++}-{3:3}: __might_fault+0x7c/0xb4 mm/memory.c:5647 _copy_to_user include/linux/uaccess.h:143 [inline] copy_to_user include/linux/uaccess.h:169 [inline] f2fs_ioc_get_encryption_pwsalt fs/f2fs/file.c:2365 [inline] __f2fs_ioctl+0x4df8/0x5104 fs/f2fs/file.c:4169 f2fs_ioctl+0x74/0xbc fs/f2fs/file.c:4242 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __arm64_sys_ioctl+0xd0/0x148 fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x64/0x178 arch/arm64/kernel/syscall.c:52 el0_svc_common+0xbc/0x180 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x110 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x14c arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 -> #0 (&sbi->sb_lock){++++}-{3:3}: check_prev_add kernel/locking/lockdep.c:3097 [inline] check_prevs_add kernel/locking/lockdep.c:3216 [inline] validate_chain kernel/locking/lockdep.c:3831 [inline] __lock_acquire+0x1670/0x2f48 kernel/locking/lockdep.c:5055 lock_acquire+0x164/0x334 kernel/locking/lockdep.c:5668 down_write+0x5c/0x88 kernel/locking/rwsem.c:1562 f2fs_down_write fs/f2fs/f2fs.h:2213 [inline] f2fs_handle_error+0x9c/0x178 fs/f2fs/super.c:3926 check_block_count+0x210/0x268 build_sit_entries+0x634/0x9bc fs/f2fs/segment.c:4470 f2fs_build_segment_manager+0x1158/0x1518 fs/f2fs/segment.c:5159 f2fs_fill_super+0x1888/0x23d0 fs/f2fs/super.c:4328 mount_bdev+0x1b8/0x210 fs/super.c:1359 f2fs_mount+0x44/0x58 fs/f2fs/super.c:4608 legacy_get_tree+0x30/0x74 fs/fs_context.c:610 vfs_get_tree+0x40/0x140 fs/super.c:1489 do_new_mount+0x1dc/0x4e4 fs/namespace.c:3145 path_mount+0x348/0x86c fs/namespace.c:3475 do_mount fs/namespace.c:3488 [inline] __do_sys_mount fs/namespace.c:3697 [inline] __se_sys_mount fs/namespace.c:3674 [inline] __arm64_sys_mount+0x2c4/0x3c4 fs/namespace.c:3674 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x64/0x178 arch/arm64/kernel/syscall.c:52 el0_svc_common+0xbc/0x180 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x110 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x14c arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 other info that might help us debug this: Chain exists of: &sbi->sb_lock --> &nm_i->nat_tree_lock --> &array[i].journal_rwsem Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&array[i].journal_rwsem); lock(&nm_i->nat_tree_lock); lock(&array[i].journal_rwsem); lock(&sbi->sb_lock); *** DEADLOCK *** 2 locks held by syz-executor.4/31499: #0: ffff00011cf0c0e0 (&type->s_umount_key#52/1){+.+.}-{3:3}, at: alloc_super+0xf8/0x430 fs/super.c:228 #1: ffff00011cf0f3b8 (&array[i].journal_rwsem){++++}-{3:3}, at: build_sit_entries+0x564/0x9bc fs/f2fs/segment.c:4450 stack backtrace: CPU: 0 PID: 31499 Comm: syz-executor.4 Not tainted 6.2.0-rc7-syzkaller-17907-g2d3827b3f393 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 dump_stack+0x1c/0x28 lib/dump_stack.c:113 print_circular_bug+0x2c4/0x2c8 kernel/locking/lockdep.c:2055 check_noncircular+0x148/0x150 kernel/locking/lockdep.c:2177 check_prev_add kernel/locking/lockdep.c:3097 [inline] check_prevs_add kernel/locking/lockdep.c:3216 [inline] validate_chain kernel/locking/lockdep.c:3831 [inline] __lock_acquire+0x1670/0x2f48 kernel/locking/lockdep.c:5055 lock_acquire+0x164/0x334 kernel/locking/lockdep.c:5668 down_write+0x5c/0x88 kernel/locking/rwsem.c:1562 f2fs_down_write fs/f2fs/f2fs.h:2213 [inline] f2fs_handle_error+0x9c/0x178 fs/f2fs/super.c:3926 check_block_count+0x210/0x268 build_sit_entries+0x634/0x9bc fs/f2fs/segment.c:4470 f2fs_build_segment_manager+0x1158/0x1518 fs/f2fs/segment.c:5159 f2fs_fill_super+0x1888/0x23d0 fs/f2fs/super.c:4328 mount_bdev+0x1b8/0x210 fs/super.c:1359 f2fs_mount+0x44/0x58 fs/f2fs/super.c:4608 legacy_get_tree+0x30/0x74 fs/fs_context.c:610 vfs_get_tree+0x40/0x140 fs/super.c:1489 do_new_mount+0x1dc/0x4e4 fs/namespace.c:3145 path_mount+0x348/0x86c fs/namespace.c:3475 do_mount fs/namespace.c:3488 [inline] __do_sys_mount fs/namespace.c:3697 [inline] __se_sys_mount fs/namespace.c:3674 [inline] __arm64_sys_mount+0x2c4/0x3c4 fs/namespace.c:3674 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x64/0x178 arch/arm64/kernel/syscall.c:52 el0_svc_common+0xbc/0x180 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x110 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x14c arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 F2FS-fs (loop4): Failed to initialize F2FS segment manager (-117)