JBD2: Ignoring recovery information on journal
ocfs2: Mounting device (7,3) on (node local, slot 0) with ordered data mode.
======================================================
WARNING: possible circular locking dependency detected
syzkaller #0 Tainted: G             L     
------------------------------------------------------
syz.3.288/8689 is trying to acquire lock:
ffff0000f9183ff8 (&oi->ip_xattr_sem){+.+.}-{4:4}, at: ocfs2_xattr_set_handle+0x2a8/0x5e4 fs/ocfs2/xattr.c:3531

but task is already holding lock:
ffff0000d194ace8 (&journal->j_trans_barrier){.+.+}-{4:4}, at: ocfs2_start_trans+0x35c/0x6b0 fs/ocfs2/journal.c:372

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #4 (&journal->j_trans_barrier){.+.+}-{4:4}:
       down_read+0x58/0x308 kernel/locking/rwsem.c:1537
       ocfs2_start_trans+0x35c/0x6b0 fs/ocfs2/journal.c:372
       ocfs2_modify_bh+0xe4/0x43c fs/ocfs2/quota_local.c:101
       ocfs2_local_read_info+0x104c/0x1364 fs/ocfs2/quota_local.c:767
       dquot_load_quota_sb+0x6bc/0xa90 fs/quota/dquot.c:2462
       dquot_load_quota_inode+0x274/0x4e4 fs/quota/dquot.c:2499
       ocfs2_enable_quotas+0x17c/0x3b4 fs/ocfs2/super.c:930
       ocfs2_fill_super+0x3fe4/0x532c fs/ocfs2/super.c:1140
       get_tree_bdev_flags+0x360/0x414 fs/super.c:1691
       get_tree_bdev+0x2c/0x3c fs/super.c:1714
       ocfs2_get_tree+0x28/0x38 fs/ocfs2/super.c:1184
       vfs_get_tree+0x90/0x28c fs/super.c:1751
       fc_mount fs/namespace.c:1199 [inline]
       do_new_mount_fc fs/namespace.c:3636 [inline]
       do_new_mount+0x284/0x944 fs/namespace.c:3712
       path_mount+0x5b4/0xdfc fs/namespace.c:4022
       do_mount fs/namespace.c:4035 [inline]
       __do_sys_mount fs/namespace.c:4224 [inline]
       __se_sys_mount fs/namespace.c:4201 [inline]
       __arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4201
       __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/0x26c 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

-> #3 (sb_internal#3){.+.+}-{0:0}:
       percpu_down_read_internal include/linux/percpu-rwsem.h:53 [inline]
       percpu_down_read_freezable include/linux/percpu-rwsem.h:83 [inline]
       __sb_start_write include/linux/fs/super.h:19 [inline]
       sb_start_intwrite include/linux/fs/super.h:177 [inline]
       ocfs2_start_trans+0x1f4/0x6b0 fs/ocfs2/journal.c:370
       ocfs2_shutdown_local_alloc+0x1ac/0x7e4 fs/ocfs2/localalloc.c:417
       ocfs2_dismount_volume+0x1cc/0x8c4 fs/ocfs2/super.c:1825
       ocfs2_put_super+0xd4/0x320 fs/ocfs2/super.c:1553
       generic_shutdown_super+0x12c/0x2b8 fs/super.c:643
       kill_block_super+0x44/0x90 fs/super.c:1722
       deactivate_locked_super+0xc4/0x12c fs/super.c:474
       deactivate_super+0xe0/0x100 fs/super.c:507
       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:233
       resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
       __exit_to_user_mode_loop kernel/entry/common.c:44 [inline]
       exit_to_user_mode_loop+0x10c/0x18c kernel/entry/common.c:75
       __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
       exit_to_user_mode_prepare_legacy include/linux/irq-entry-common.h:242 [inline]
       arm64_exit_to_user_mode arch/arm64/kernel/entry-common.c:81 [inline]
       el0_svc+0x17c/0x26c arch/arm64/kernel/entry-common.c:725
       el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743
       el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596

-> #2 (&ocfs2_sysfile_lock_key[GLOBAL_BITMAP_SYSTEM_INODE]){+.+.}-{4:4}:
       down_write+0x50/0xc0 kernel/locking/rwsem.c:1590
       inode_lock include/linux/fs.h:1027 [inline]
       ocfs2_reserve_suballoc_bits+0x130/0x3ea0 fs/ocfs2/suballoc.c:789
       ocfs2_reserve_cluster_bitmap_bits fs/ocfs2/suballoc.c:1135 [inline]
       ocfs2_reserve_clusters_with_limit+0x290/0x9e0 fs/ocfs2/suballoc.c:1180
       ocfs2_block_group_alloc fs/ocfs2/suballoc.c:675 [inline]
       ocfs2_reserve_suballoc_bits+0x72c/0x3ea0 fs/ocfs2/suballoc.c:835
       ocfs2_reserve_new_metadata_blocks+0x368/0x810 fs/ocfs2/suballoc.c:985
       ocfs2_init_xattr_set_ctxt+0x300/0x778 fs/ocfs2/xattr.c:3307
       ocfs2_xattr_set+0x920/0xe9c fs/ocfs2/xattr.c:3664
       ocfs2_set_acl+0x574/0x628 fs/ocfs2/acl.c:255
       ocfs2_iop_set_acl+0x190/0x25c fs/ocfs2/acl.c:287
       set_posix_acl fs/posix_acl.c:954 [inline]
       vfs_set_acl+0x704/0x96c fs/posix_acl.c:1133
       do_set_acl+0xe0/0x1a8 fs/posix_acl.c:1278
       do_setxattr fs/xattr.c:633 [inline]
       filename_setxattr+0x268/0x4f8 fs/xattr.c:665
       path_setxattrat+0x2e8/0x320 fs/xattr.c:713
       __do_sys_setxattr fs/xattr.c:747 [inline]
       __se_sys_setxattr fs/xattr.c:743 [inline]
       __arm64_sys_setxattr+0xc0/0xdc fs/xattr.c:743
       __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/0x26c 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

-> #1 (&ocfs2_sysfile_lock_key[EXTENT_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}:
       down_write+0x50/0xc0 kernel/locking/rwsem.c:1590
       inode_lock include/linux/fs.h:1027 [inline]
       ocfs2_reserve_suballoc_bits+0x130/0x3ea0 fs/ocfs2/suballoc.c:789
       ocfs2_reserve_new_metadata_blocks+0x368/0x810 fs/ocfs2/suballoc.c:985
       ocfs2_init_xattr_set_ctxt+0x300/0x778 fs/ocfs2/xattr.c:3307
       ocfs2_xattr_set+0x920/0xe9c fs/ocfs2/xattr.c:3664
       ocfs2_set_acl+0x574/0x628 fs/ocfs2/acl.c:255
       ocfs2_iop_set_acl+0x190/0x25c fs/ocfs2/acl.c:287
       set_posix_acl fs/posix_acl.c:954 [inline]
       vfs_set_acl+0x704/0x96c fs/posix_acl.c:1133
       do_set_acl+0xe0/0x1a8 fs/posix_acl.c:1278
       do_setxattr fs/xattr.c:633 [inline]
       filename_setxattr+0x268/0x4f8 fs/xattr.c:665
       path_setxattrat+0x2e8/0x320 fs/xattr.c:713
       __do_sys_setxattr fs/xattr.c:747 [inline]
       __se_sys_setxattr fs/xattr.c:743 [inline]
       __arm64_sys_setxattr+0xc0/0xdc fs/xattr.c:743
       __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/0x26c 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

-> #0 (&oi->ip_xattr_sem){+.+.}-{4:4}:
       check_prev_add kernel/locking/lockdep.c:3165 [inline]
       check_prevs_add kernel/locking/lockdep.c:3284 [inline]
       validate_chain kernel/locking/lockdep.c:3908 [inline]
       __lock_acquire+0x1774/0x30a4 kernel/locking/lockdep.c:5237
       lock_acquire+0x140/0x2e0 kernel/locking/lockdep.c:5868
       down_write+0x50/0xc0 kernel/locking/rwsem.c:1590
       ocfs2_xattr_set_handle+0x2a8/0x5e4 fs/ocfs2/xattr.c:3531
       ocfs2_init_security_set+0xb4/0xd8 fs/ocfs2/xattr.c:7337
       ocfs2_mknod+0x104c/0x1cf0 fs/ocfs2/namei.c:423
       ocfs2_mkdir+0x178/0x474 fs/ocfs2/namei.c:660
       vfs_mkdir+0x408/0x48c fs/namei.c:5130
       do_mkdirat+0x238/0x448 fs/namei.c:5164
       __do_sys_mkdirat fs/namei.c:5186 [inline]
       __se_sys_mkdirat fs/namei.c:5184 [inline]
       __arm64_sys_mkdirat+0x8c/0xa4 fs/namei.c:5184
       __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/0x26c 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

other info that might help us debug this:

Chain exists of:
  &oi->ip_xattr_sem --> sb_internal#3 --> &journal->j_trans_barrier

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  rlock(&journal->j_trans_barrier);
                               lock(sb_internal#3);
                               lock(&journal->j_trans_barrier);
  lock(&oi->ip_xattr_sem);

 *** DEADLOCK ***

8 locks held by syz.3.288/8689:
 #0: ffff0000fc480420 (sb_writers#22){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:499
 #1: ffff0000f93d89c0 (&type->i_mutex_dir_key#14/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:1072 [inline]
 #1: ffff0000f93d89c0 (&type->i_mutex_dir_key#14/1){+.+.}-{4:4}, at: __start_dirop fs/namei.c:2864 [inline]
 #1: ffff0000f93d89c0 (&type->i_mutex_dir_key#14/1){+.+.}-{4:4}, at: start_dirop fs/namei.c:2875 [inline]
 #1: ffff0000f93d89c0 (&type->i_mutex_dir_key#14/1){+.+.}-{4:4}, at: filename_create+0x1a4/0x2d8 fs/namei.c:4879
 #2: ffff0000f8245100 (&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline]
 #2: ffff0000f8245100 (&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x130/0x3ea0 fs/ocfs2/suballoc.c:789
 #3: ffff0000f93da640 (&ocfs2_sysfile_lock_key[EXTENT_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline]
 #3: ffff0000f93da640 (&ocfs2_sysfile_lock_key[EXTENT_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x130/0x3ea0 fs/ocfs2/suballoc.c:789
 #4: ffff0000f8242640 (&ocfs2_sysfile_lock_key[LOCAL_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline]
 #4: ffff0000f8242640 (&ocfs2_sysfile_lock_key[LOCAL_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_reserve_local_alloc_bits+0x104/0x26a8 fs/ocfs2/localalloc.c:636
 #5: ffff0000fc480610 (sb_internal#3){.+.+}-{0:0}, at: ocfs2_mknod+0xc30/0x1cf0 fs/ocfs2/namei.c:365
 #6: ffff0000d194ace8 (&journal->j_trans_barrier){.+.+}-{4:4}, at: ocfs2_start_trans+0x35c/0x6b0 fs/ocfs2/journal.c:372
 #7: ffff0000cfa2e950 (jbd2_handle#2){.+.+}-{0:0}, at: start_this_handle+0xe4c/0x10dc fs/jbd2/transaction.c:442

stack backtrace:
CPU: 1 UID: 0 PID: 8689 Comm: syz.3.288 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
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
 print_circular_bug+0x324/0x32c kernel/locking/lockdep.c:2043
 check_noncircular+0x154/0x174 kernel/locking/lockdep.c:2175
 check_prev_add kernel/locking/lockdep.c:3165 [inline]
 check_prevs_add kernel/locking/lockdep.c:3284 [inline]
 validate_chain kernel/locking/lockdep.c:3908 [inline]
 __lock_acquire+0x1774/0x30a4 kernel/locking/lockdep.c:5237
 lock_acquire+0x140/0x2e0 kernel/locking/lockdep.c:5868
 down_write+0x50/0xc0 kernel/locking/rwsem.c:1590
 ocfs2_xattr_set_handle+0x2a8/0x5e4 fs/ocfs2/xattr.c:3531
 ocfs2_init_security_set+0xb4/0xd8 fs/ocfs2/xattr.c:7337
 ocfs2_mknod+0x104c/0x1cf0 fs/ocfs2/namei.c:423
 ocfs2_mkdir+0x178/0x474 fs/ocfs2/namei.c:660
 vfs_mkdir+0x408/0x48c fs/namei.c:5130
 do_mkdirat+0x238/0x448 fs/namei.c:5164
 __do_sys_mkdirat fs/namei.c:5186 [inline]
 __se_sys_mkdirat fs/namei.c:5184 [inline]
 __arm64_sys_mkdirat+0x8c/0xa4 fs/namei.c:5184
 __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/0x26c 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