F2FS-fs (loop0): Disable nat_bits due to incorrect cp_ver (9621037545273099749, 1067266233009637) F2FS-fs (loop0): f2fs_check_nid_range: out-of-range nid=2, run fsck to fix. ====================================================== WARNING: possible circular locking dependency detected 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0 Not tainted ------------------------------------------------------ syz-executor.0/6328 is trying to acquire lock: ffff00010eb9e088 (&sbi->sb_lock){++++}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2205 [inline] ffff00010eb9e088 (&sbi->sb_lock){++++}-{3:3}, at: f2fs_handle_error+0x9c/0x17c fs/f2fs/super.c:3898 but task is already holding lock: ffff000112585130 (&nm_i->nat_tree_lock){++++}-{3:3}, at: f2fs_down_read fs/f2fs/f2fs.h:2180 [inline] ffff000112585130 (&nm_i->nat_tree_lock){++++}-{3:3}, at: __f2fs_build_free_nids fs/f2fs/node.c:2480 [inline] ffff000112585130 (&nm_i->nat_tree_lock){++++}-{3:3}, at: f2fs_build_free_nids+0x3e4/0x8f4 fs/f2fs/node.c:2528 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #5 (&nm_i->nat_tree_lock){++++}-{3:3}: down_read+0x5c/0x78 kernel/locking/rwsem.c:1509 f2fs_down_read fs/f2fs/f2fs.h:2180 [inline] f2fs_get_node_info+0x74/0x458 fs/f2fs/node.c:560 __write_node_page+0x244/0xfcc fs/f2fs/node.c:1613 f2fs_sync_node_pages+0x888/0xdb0 fs/f2fs/node.c:2017 block_operations+0x288/0x400 fs/f2fs/checkpoint.c:1270 f2fs_write_checkpoint+0x210/0x568 fs/f2fs/checkpoint.c:1650 kill_f2fs_super+0xec/0x194 fs/f2fs/super.c:4606 deactivate_locked_super+0x70/0xe8 fs/super.c:332 deactivate_super+0xd0/0xd4 fs/super.c:363 cleanup_mnt+0x184/0x1c0 fs/namespace.c:1186 __cleanup_mnt+0x20/0x30 fs/namespace.c:1193 task_work_run+0x100/0x148 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x174/0x1f0 arch/arm64/kernel/signal.c:1132 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:638 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584 -> #4 (&sbi->node_change){++++}-{3:3}: down_read+0x5c/0x78 kernel/locking/rwsem.c:1509 f2fs_do_map_lock+0x5c/0x88 f2fs_vm_page_mkwrite+0x324/0x9a4 fs/f2fs/file.c:116 do_page_mkwrite+0x74/0x288 mm/memory.c:2977 wp_page_shared+0x8c/0x364 mm/memory.c:3323 do_wp_page+0x794/0xd10 mm/memory.c:3473 handle_pte_fault mm/memory.c:4972 [inline] __handle_mm_fault mm/memory.c:5096 [inline] handle_mm_fault+0x880/0xa48 mm/memory.c:5217 __do_page_fault arch/arm64/mm/fault.c:508 [inline] do_page_fault+0x428/0x79c arch/arm64/mm/fault.c:608 do_mem_abort+0x54/0x130 arch/arm64/mm/fault.c:827 el1_abort+0x3c/0x5c arch/arm64/kernel/entry-common.c:367 el1h_64_sync_handler+0x60/0xac arch/arm64/kernel/entry-common.c:427 el1h_64_sync+0x64/0x68 arch/arm64/kernel/entry.S:579 __arch_copy_to_user+0xcc/0x234 arch/arm64/lib/copy_template.S:115 tcp_getsockopt+0x68/0xa8 net/ipv4/tcp.c:4403 sock_common_getsockopt+0x50/0x68 net/core/sock.c:3614 __sys_getsockopt+0x1b0/0x2f8 net/socket.c:2296 __do_sys_getsockopt net/socket.c:2311 [inline] __se_sys_getsockopt net/socket.c:2308 [inline] __arm64_sys_getsockopt+0x2c/0x40 net/socket.c:2308 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197 el0_svc+0x58/0x150 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:584 -> #3 (mapping.invalidate_lock#5){.+.+}-{3:3}: down_read+0x5c/0x78 kernel/locking/rwsem.c:1509 filemap_invalidate_lock_shared include/linux/fs.h:811 [inline] f2fs_vm_page_mkwrite+0x18c/0x9a4 fs/f2fs/file.c:104 do_page_mkwrite+0x74/0x288 mm/memory.c:2977 wp_page_shared+0x8c/0x364 mm/memory.c:3323 do_wp_page+0x794/0xd10 mm/memory.c:3473 handle_pte_fault mm/memory.c:4972 [inline] __handle_mm_fault mm/memory.c:5096 [inline] handle_mm_fault+0x880/0xa48 mm/memory.c:5217 __do_page_fault arch/arm64/mm/fault.c:508 [inline] do_page_fault+0x428/0x79c arch/arm64/mm/fault.c:608 do_mem_abort+0x54/0x130 arch/arm64/mm/fault.c:827 el1_abort+0x3c/0x5c arch/arm64/kernel/entry-common.c:367 el1h_64_sync_handler+0x60/0xac arch/arm64/kernel/entry-common.c:427 el1h_64_sync+0x64/0x68 arch/arm64/kernel/entry.S:579 __arch_copy_to_user+0xcc/0x234 arch/arm64/lib/copy_template.S:115 tcp_getsockopt+0x68/0xa8 net/ipv4/tcp.c:4403 sock_common_getsockopt+0x50/0x68 net/core/sock.c:3614 __sys_getsockopt+0x1b0/0x2f8 net/socket.c:2296 __do_sys_getsockopt net/socket.c:2311 [inline] __se_sys_getsockopt net/socket.c:2308 [inline] __arm64_sys_getsockopt+0x2c/0x40 net/socket.c:2308 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197 el0_svc+0x58/0x150 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:584 -> #2 (sb_pagefaults#3){.+.+}-{0:0}: percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write+0x84/0x1f4 include/linux/fs.h:1826 sb_start_pagefault include/linux/fs.h:1930 [inline] f2fs_vm_page_mkwrite+0x160/0x9a4 fs/f2fs/file.c:99 do_page_mkwrite+0x74/0x288 mm/memory.c:2977 wp_page_shared+0x8c/0x364 mm/memory.c:3323 do_wp_page+0x794/0xd10 mm/memory.c:3473 handle_pte_fault mm/memory.c:4972 [inline] __handle_mm_fault mm/memory.c:5096 [inline] handle_mm_fault+0x880/0xa48 mm/memory.c:5217 __do_page_fault arch/arm64/mm/fault.c:508 [inline] do_page_fault+0x428/0x79c arch/arm64/mm/fault.c:608 do_mem_abort+0x54/0x130 arch/arm64/mm/fault.c:827 el1_abort+0x3c/0x5c arch/arm64/kernel/entry-common.c:367 el1h_64_sync_handler+0x60/0xac arch/arm64/kernel/entry-common.c:427 el1h_64_sync+0x64/0x68 arch/arm64/kernel/entry.S:579 __arch_copy_to_user+0xcc/0x234 arch/arm64/lib/copy_template.S:115 tcp_getsockopt+0x68/0xa8 net/ipv4/tcp.c:4403 sock_common_getsockopt+0x50/0x68 net/core/sock.c:3614 __sys_getsockopt+0x1b0/0x2f8 net/socket.c:2296 __do_sys_getsockopt net/socket.c:2311 [inline] __se_sys_getsockopt net/socket.c:2308 [inline] __arm64_sys_getsockopt+0x2c/0x40 net/socket.c:2308 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197 el0_svc+0x58/0x150 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:584 -> #1 (&mm->mmap_lock){++++}-{3:3}: __might_fault+0x7c/0xb4 mm/memory.c:5645 _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:2349 [inline] __f2fs_ioctl+0x3204/0x3318 fs/f2fs/file.c:4151 f2fs_ioctl+0x74/0xbc fs/f2fs/file.c:4224 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+0xd0/0x140 fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197 el0_svc+0x58/0x150 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:584 -> #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+0x1530/0x3084 kernel/locking/lockdep.c:5055 lock_acquire+0x100/0x1f8 kernel/locking/lockdep.c:5668 down_write+0x5c/0x88 kernel/locking/rwsem.c:1562 f2fs_down_write fs/f2fs/f2fs.h:2205 [inline] f2fs_handle_error+0x9c/0x17c fs/f2fs/super.c:3898 f2fs_check_nid_range fs/f2fs/node.c:39 [inline] add_free_nid+0x4d8/0x50c fs/f2fs/node.c:2282 scan_nat_page fs/f2fs/node.c:2384 [inline] __f2fs_build_free_nids fs/f2fs/node.c:2490 [inline] f2fs_build_free_nids+0x680/0x8f4 fs/f2fs/node.c:2528 f2fs_build_node_manager+0x624/0x64c fs/f2fs/node.c:3313 f2fs_fill_super+0x1470/0x1e90 fs/f2fs/super.c:4306 mount_bdev+0x1b8/0x210 fs/super.c:1401 f2fs_mount+0x44/0x58 fs/f2fs/super.c:4580 legacy_get_tree+0x30/0x74 fs/fs_context.c:610 vfs_get_tree+0x40/0x140 fs/super.c:1531 do_new_mount+0x1dc/0x4e4 fs/namespace.c:3040 path_mount+0x358/0x890 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __arm64_sys_mount+0x2c4/0x3c4 fs/namespace.c:3568 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197 el0_svc+0x58/0x150 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:584 other info that might help us debug this: Chain exists of: &sbi->sb_lock --> &sbi->node_change --> &nm_i->nat_tree_lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&nm_i->nat_tree_lock); lock(&sbi->node_change); lock(&nm_i->nat_tree_lock); lock(&sbi->sb_lock); *** DEADLOCK *** 3 locks held by syz-executor.0/6328: #0: ffff000112aa10e0 (&type->s_umount_key#74/1){+.+.}-{3:3}, at: alloc_super+0xf8/0x430 fs/super.c:228 #1: ffff0001125852c8 (&nm_i->build_lock){+.+.}-{3:3}, at: f2fs_build_free_nids+0x50/0x8f4 fs/f2fs/node.c:2527 #2: ffff000112585130 (&nm_i->nat_tree_lock){++++}-{3:3}, at: f2fs_down_read fs/f2fs/f2fs.h:2180 [inline] #2: ffff000112585130 (&nm_i->nat_tree_lock){++++}-{3:3}, at: __f2fs_build_free_nids fs/f2fs/node.c:2480 [inline] #2: ffff000112585130 (&nm_i->nat_tree_lock){++++}-{3:3}, at: f2fs_build_free_nids+0x3e4/0x8f4 fs/f2fs/node.c:2528 stack backtrace: CPU: 0 PID: 6328 Comm: syz-executor.0 Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call trace: dump_backtrace+0x1c4/0x1f0 arch/arm64/kernel/stacktrace.c:156 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:163 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x104/0x16c lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 print_circular_bug+0x2c4/0x2c8 kernel/locking/lockdep.c:2055 check_noncircular+0x14c/0x154 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+0x1530/0x3084 kernel/locking/lockdep.c:5055 lock_acquire+0x100/0x1f8 kernel/locking/lockdep.c:5668 down_write+0x5c/0x88 kernel/locking/rwsem.c:1562 f2fs_down_write fs/f2fs/f2fs.h:2205 [inline] f2fs_handle_error+0x9c/0x17c fs/f2fs/super.c:3898 f2fs_check_nid_range fs/f2fs/node.c:39 [inline] add_free_nid+0x4d8/0x50c fs/f2fs/node.c:2282 scan_nat_page fs/f2fs/node.c:2384 [inline] __f2fs_build_free_nids fs/f2fs/node.c:2490 [inline] f2fs_build_free_nids+0x680/0x8f4 fs/f2fs/node.c:2528 f2fs_build_node_manager+0x624/0x64c fs/f2fs/node.c:3313 f2fs_fill_super+0x1470/0x1e90 fs/f2fs/super.c:4306 mount_bdev+0x1b8/0x210 fs/super.c:1401 f2fs_mount+0x44/0x58 fs/f2fs/super.c:4580 legacy_get_tree+0x30/0x74 fs/fs_context.c:610 vfs_get_tree+0x40/0x140 fs/super.c:1531 do_new_mount+0x1dc/0x4e4 fs/namespace.c:3040 path_mount+0x358/0x890 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __arm64_sys_mount+0x2c4/0x3c4 fs/namespace.c:3568 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197 el0_svc+0x58/0x150 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:584 F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5