JBD2: Ignoring recovery information on journal ocfs2: Mounting device (7,2) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ syz.2.100/4716 is trying to acquire lock: ffff0000e1f83f60 (&oi->ip_alloc_sem){++++}-{3:3}, at: ocfs2_read_virt_blocks+0x238/0x8f0 fs/ocfs2/extent_map.c:984 but task is already holding lock: ffff0000f809a990 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1020/0x1280 fs/jbd2/transaction.c:461 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (jbd2_handle){++++}-{0:0}: jbd2_journal_lock_updates+0xa8/0x314 fs/jbd2/transaction.c:880 __ocfs2_flush_truncate_log+0x26c/0x10a8 fs/ocfs2/alloc.c:6029 ocfs2_flush_truncate_log+0x48/0x68 fs/ocfs2/alloc.c:6076 ocfs2_sync_fs+0x100/0x2c0 fs/ocfs2/super.c:402 sync_filesystem+0x1a0/0x218 fs/sync.c:66 generic_shutdown_super+0x70/0x324 fs/super.c:474 kill_block_super+0x70/0xdc fs/super.c:1470 deactivate_locked_super+0xac/0x120 fs/super.c:332 deactivate_super+0xe4/0x104 fs/super.c:363 cleanup_mnt+0x390/0x418 fs/namespace.c:1191 __cleanup_mnt+0x20/0x30 fs/namespace.c:1198 task_work_run+0x1ec/0x278 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x1fa0/0x2aa4 arch/arm64/kernel/signal.c:1137 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+0x98/0x128 arch/arm64/kernel/entry-common.c:638 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 -> #2 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{3:3}: down_write+0x5c/0x88 kernel/locking/rwsem.c:1573 inode_lock include/linux/fs.h:758 [inline] ocfs2_remove_btree_range+0x514/0x1260 fs/ocfs2/alloc.c:5742 ocfs2_remove_inode_range+0xb98/0x2390 fs/ocfs2/file.c:1907 ocfs2_reflink_remap_extent fs/ocfs2/refcounttree.c:4543 [inline] ocfs2_reflink_remap_blocks+0x9d8/0x15a8 fs/ocfs2/refcounttree.c:4690 ocfs2_remap_file_range+0x3f8/0x64c fs/ocfs2/file.c:2703 vfs_copy_file_range+0xb38/0x11c8 fs/read_write.c:1518 __do_sys_copy_file_range fs/read_write.c:1596 [inline] __se_sys_copy_file_range fs/read_write.c:1559 [inline] __arm64_sys_copy_file_range+0x500/0x828 fs/read_write.c:1559 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 -> #1 (&oi->ip_alloc_sem/1){+.+.}-{3:3}: down_write_nested+0x64/0x94 kernel/locking/rwsem.c:1689 ocfs2_remap_file_range+0x358/0x64c fs/ocfs2/file.c:2695 vfs_copy_file_range+0xb38/0x11c8 fs/read_write.c:1518 __do_sys_copy_file_range fs/read_write.c:1596 [inline] __se_sys_copy_file_range fs/read_write.c:1559 [inline] __arm64_sys_copy_file_range+0x500/0x828 fs/read_write.c:1559 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 -> #0 (&oi->ip_alloc_sem){++++}-{3:3}: check_prev_add kernel/locking/lockdep.c:3090 [inline] check_prevs_add kernel/locking/lockdep.c:3209 [inline] validate_chain kernel/locking/lockdep.c:3825 [inline] __lock_acquire+0x2880/0x6800 kernel/locking/lockdep.c:5049 lock_acquire+0x20c/0x63c kernel/locking/lockdep.c:5662 down_read+0x64/0x300 kernel/locking/rwsem.c:1520 ocfs2_read_virt_blocks+0x238/0x8f0 fs/ocfs2/extent_map.c:984 ocfs2_read_dir_block fs/ocfs2/dir.c:508 [inline] ocfs2_find_entry_el fs/ocfs2/dir.c:715 [inline] ocfs2_find_entry+0x2e4/0x1d6c fs/ocfs2/dir.c:1091 ocfs2_rename+0x196c/0x30b4 fs/ocfs2/namei.c:1568 vfs_rename+0x95c/0xde0 fs/namei.c:4882 do_renameat2+0x744/0xa74 fs/namei.c:5035 __do_sys_renameat2 fs/namei.c:5068 [inline] __se_sys_renameat2 fs/namei.c:5065 [inline] __arm64_sys_renameat2+0xe0/0xfc fs/namei.c:5065 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 other info that might help us debug this: Chain exists of: &oi->ip_alloc_sem --> &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6 --> jbd2_handle Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(jbd2_handle); lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6); lock(jbd2_handle); lock(&oi->ip_alloc_sem); *** DEADLOCK *** 8 locks held by syz.2.100/4716: #0: ffff0000de652460 (sb_writers#18){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:402 #1: ffff0000de652748 (&type->s_vfs_rename_key#3){+.+.}-{3:3}, at: lock_rename fs/namei.c:3046 [inline] #1: ffff0000de652748 (&type->s_vfs_rename_key#3){+.+.}-{3:3}, at: do_renameat2+0x308/0xa74 fs/namei.c:4974 #2: ffff0000e1f842c8 (&sb->s_type->i_mutex_key#25/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:793 [inline] #2: ffff0000e1f842c8 (&sb->s_type->i_mutex_key#25/1){+.+.}-{3:3}, at: lock_two_directories fs/namei.c:-1 [inline] #2: ffff0000e1f842c8 (&sb->s_type->i_mutex_key#25/1){+.+.}-{3:3}, at: lock_rename fs/namei.c:3047 [inline] #2: ffff0000e1f842c8 (&sb->s_type->i_mutex_key#25/1){+.+.}-{3:3}, at: do_renameat2+0x384/0xa74 fs/namei.c:4974 #3: ffff0000e1f85f48 (&sb->s_type->i_mutex_key#25/5){+.+.}-{3:3}, at: lock_rename include/linux/fs.h:-1 [inline] #3: ffff0000e1f85f48 (&sb->s_type->i_mutex_key#25/5){+.+.}-{3:3}, at: do_renameat2+0x3b8/0xa74 fs/namei.c:4974 #4: ffff0000e1f85108 (&sb->s_type->i_mutex_key#25/2){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:793 [inline] #4: ffff0000e1f85108 (&sb->s_type->i_mutex_key#25/2){+.+.}-{3:3}, at: vfs_rename+0x614/0xde0 fs/namei.c:4845 #5: ffff0000de652650 (sb_internal#4){.+.+}-{0:0}, at: ocfs2_rename+0x1600/0x30b4 fs/ocfs2/namei.c:1488 #6: ffff0000cda5d4e8 (&journal->j_trans_barrier){.+.+}-{3:3}, at: ocfs2_start_trans+0x374/0x6cc fs/ocfs2/journal.c:374 #7: ffff0000f809a990 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1020/0x1280 fs/jbd2/transaction.c:461 stack backtrace: CPU: 1 PID: 4716 Comm: syz.2.100 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 Call trace: dump_backtrace+0x1c0/0x1ec arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 print_circular_bug+0x148/0x1b0 kernel/locking/lockdep.c:2048 check_noncircular+0x264/0x2f8 kernel/locking/lockdep.c:2170 check_prev_add kernel/locking/lockdep.c:3090 [inline] check_prevs_add kernel/locking/lockdep.c:3209 [inline] validate_chain kernel/locking/lockdep.c:3825 [inline] __lock_acquire+0x2880/0x6800 kernel/locking/lockdep.c:5049 lock_acquire+0x20c/0x63c kernel/locking/lockdep.c:5662 down_read+0x64/0x300 kernel/locking/rwsem.c:1520 ocfs2_read_virt_blocks+0x238/0x8f0 fs/ocfs2/extent_map.c:984 ocfs2_read_dir_block fs/ocfs2/dir.c:508 [inline] ocfs2_find_entry_el fs/ocfs2/dir.c:715 [inline] ocfs2_find_entry+0x2e4/0x1d6c fs/ocfs2/dir.c:1091 ocfs2_rename+0x196c/0x30b4 fs/ocfs2/namei.c:1568 vfs_rename+0x95c/0xde0 fs/namei.c:4882 do_renameat2+0x744/0xa74 fs/namei.c:5035 __do_sys_renameat2 fs/namei.c:5068 [inline] __se_sys_renameat2 fs/namei.c:5065 [inline] __arm64_sys_renameat2+0xe0/0xfc fs/namei.c:5065 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585