JBD2: Ignoring recovery information on journal ocfs2: Mounting device (7,4) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected 6.12.0-rc1-syzkaller-g80cb3fb61135 #0 Not tainted ------------------------------------------------------ syz.4.1154/10531 is trying to acquire lock: ffff0000f06ac610 (sb_internal#4){.+.+}-{0:0}, at: ocfs2_acquire_dquot+0x3c4/0xa8c fs/ocfs2/quota_global.c:855 but task is already holding lock: ffff0000da94bf60 (&ocfs2_quota_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_lock_global_qf+0x1d4/0x260 fs/ocfs2/quota_global.c:314 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #6 (&ocfs2_quota_ip_alloc_sem_key){++++}-{3:3}: down_write+0x50/0xc0 kernel/locking/rwsem.c:1577 ocfs2_lock_global_qf+0x1d4/0x260 fs/ocfs2/quota_global.c:314 ocfs2_acquire_dquot+0x268/0xa8c fs/ocfs2/quota_global.c:823 dqget+0x660/0xcec fs/quota/dquot.c:976 dquot_set_dqblk+0x40/0xeac fs/quota/dquot.c:2819 quota_setquota+0x5bc/0x6f0 fs/quota/quota.c:310 do_quotactl+0x508/0x698 fs/quota/quota.c:802 __do_sys_quotactl fs/quota/quota.c:961 [inline] __se_sys_quotactl fs/quota/quota.c:917 [inline] __arm64_sys_quotactl+0x2c0/0xc9c fs/quota/quota.c:917 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:732 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:750 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 -> #5 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{3:3}: down_write+0x50/0xc0 kernel/locking/rwsem.c:1577 inode_lock include/linux/fs.h:815 [inline] ocfs2_lock_global_qf+0x1b8/0x260 fs/ocfs2/quota_global.c:313 ocfs2_acquire_dquot+0x268/0xa8c fs/ocfs2/quota_global.c:823 dqget+0x660/0xcec fs/quota/dquot.c:976 dquot_set_dqblk+0x40/0xeac fs/quota/dquot.c:2819 quota_setquota+0x5bc/0x6f0 fs/quota/quota.c:310 do_quotactl+0x508/0x698 fs/quota/quota.c:802 __do_sys_quotactl fs/quota/quota.c:961 [inline] __se_sys_quotactl fs/quota/quota.c:917 [inline] __arm64_sys_quotactl+0x2c0/0xc9c fs/quota/quota.c:917 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:732 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:750 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 -> #4 (&dquot->dq_lock){+.+.}-{3:3}: __mutex_lock_common+0x190/0x21a0 kernel/locking/mutex.c:608 __mutex_lock kernel/locking/mutex.c:752 [inline] mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:804 wait_on_dquot fs/quota/dquot.c:355 [inline] dqget+0x5f0/0xcec fs/quota/dquot.c:971 dquot_transfer+0x248/0x5c0 fs/quota/dquot.c:2139 ext4_setattr+0x8bc/0x1624 fs/ext4/inode.c:5368 notify_change+0x9f0/0xca0 fs/attr.c:503 chown_common+0x438/0x700 fs/open.c:793 vfs_fchown fs/open.c:861 [inline] ksys_fchown+0xe0/0x158 fs/open.c:872 __do_sys_fchown fs/open.c:880 [inline] __se_sys_fchown fs/open.c:878 [inline] __arm64_sys_fchown+0x7c/0x94 fs/open.c:878 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:732 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:750 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 -> #3 (&ei->xattr_sem){++++}-{3:3}: down_write+0x50/0xc0 kernel/locking/rwsem.c:1577 ext4_write_lock_xattr fs/ext4/xattr.h:154 [inline] ext4_xattr_set_handle+0x1dc/0x12d0 fs/ext4/xattr.c:2373 ext4_initxattrs+0xa4/0x11c fs/ext4/xattr_security.c:44 security_inode_init_security+0x73c/0x908 security/security.c:1846 ext4_init_security+0x44/0x58 fs/ext4/xattr_security.c:58 __ext4_new_inode+0x2be8/0x3830 fs/ext4/ialloc.c:1323 ext4_create+0x234/0x480 fs/ext4/namei.c:2834 lookup_open fs/namei.c:3595 [inline] open_last_lookups fs/namei.c:3694 [inline] path_openat+0x13e4/0x2b14 fs/namei.c:3930 do_filp_open+0x1bc/0x3cc fs/namei.c:3960 do_sys_openat2+0x124/0x1b8 fs/open.c:1415 do_sys_open fs/open.c:1430 [inline] __do_sys_openat fs/open.c:1446 [inline] __se_sys_openat fs/open.c:1441 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1441 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:732 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:750 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 -> #2 (jbd2_handle){++++}-{0:0}: start_this_handle+0xf34/0x11c4 fs/jbd2/transaction.c:448 jbd2__journal_start+0x298/0x544 fs/jbd2/transaction.c:505 jbd2_journal_start+0x3c/0x4c fs/jbd2/transaction.c:544 ocfs2_start_trans+0x3d0/0x71c fs/ocfs2/journal.c:352 ocfs2_shutdown_local_alloc+0x1d8/0x8d8 fs/ocfs2/localalloc.c:417 ocfs2_dismount_volume+0x1ec/0x920 fs/ocfs2/super.c:1877 ocfs2_put_super+0xec/0x368 fs/ocfs2/super.c:1608 generic_shutdown_super+0x12c/0x2bc fs/super.c:642 kill_block_super+0x44/0x90 fs/super.c:1696 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1373 __cleanup_mnt+0x20/0x30 fs/namespace.c:1380 task_work_run+0x230/0x2e0 kernel/task_work.c:228 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] do_notify_resume+0x178/0x1f4 arch/arm64/kernel/entry-common.c:151 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline] el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:733 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:750 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 -> #1 (&journal->j_trans_barrier){.+.+}-{3:3}: down_read+0x58/0x2fc kernel/locking/rwsem.c:1524 ocfs2_start_trans+0x3c4/0x71c fs/ocfs2/journal.c:350 ocfs2_shutdown_local_alloc+0x1d8/0x8d8 fs/ocfs2/localalloc.c:417 ocfs2_dismount_volume+0x1ec/0x920 fs/ocfs2/super.c:1877 ocfs2_put_super+0xec/0x368 fs/ocfs2/super.c:1608 generic_shutdown_super+0x12c/0x2bc fs/super.c:642 kill_block_super+0x44/0x90 fs/super.c:1696 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1373 __cleanup_mnt+0x20/0x30 fs/namespace.c:1380 task_work_run+0x230/0x2e0 kernel/task_work.c:228 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] do_notify_resume+0x178/0x1f4 arch/arm64/kernel/entry-common.c:151 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline] el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:733 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:750 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 -> #0 (sb_internal#4){.+.+}-{0:0}: check_prev_add kernel/locking/lockdep.c:3161 [inline] check_prevs_add kernel/locking/lockdep.c:3280 [inline] validate_chain kernel/locking/lockdep.c:3904 [inline] __lock_acquire+0x33f8/0x77c8 kernel/locking/lockdep.c:5202 lock_acquire+0x240/0x728 kernel/locking/lockdep.c:5825 percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1716 [inline] sb_start_intwrite include/linux/fs.h:1899 [inline] ocfs2_start_trans+0x244/0x71c fs/ocfs2/journal.c:348 ocfs2_acquire_dquot+0x3c4/0xa8c fs/ocfs2/quota_global.c:855 dqget+0x660/0xcec fs/quota/dquot.c:976 dquot_set_dqblk+0x40/0xeac fs/quota/dquot.c:2819 quota_setquota+0x5bc/0x6f0 fs/quota/quota.c:310 do_quotactl+0x508/0x698 fs/quota/quota.c:802 __do_sys_quotactl fs/quota/quota.c:961 [inline] __se_sys_quotactl fs/quota/quota.c:917 [inline] __arm64_sys_quotactl+0x2c0/0xc9c fs/quota/quota.c:917 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:732 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:750 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 other info that might help us debug this: Chain exists of: sb_internal#4 --> &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7 --> &ocfs2_quota_ip_alloc_sem_key Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ocfs2_quota_ip_alloc_sem_key); lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7); lock(&ocfs2_quota_ip_alloc_sem_key); rlock(sb_internal#4); *** DEADLOCK *** 4 locks held by syz.4.1154/10531: #0: ffff0000f06ac0e0 (&type->s_umount_key#65){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline] #0: ffff0000f06ac0e0 (&type->s_umount_key#65){++++}-{3:3}, at: super_lock+0x244/0x33c fs/super.c:120 #1: ffff0000c142a0a8 (&dquot->dq_lock){+.+.}-{3:3}, at: ocfs2_acquire_dquot+0x25c/0xa8c fs/ocfs2/quota_global.c:818 #2: ffff0000da94c2c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline] #2: ffff0000da94c2c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{3:3}, at: ocfs2_lock_global_qf+0x1b8/0x260 fs/ocfs2/quota_global.c:313 #3: ffff0000da94bf60 (&ocfs2_quota_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_lock_global_qf+0x1d4/0x260 fs/ocfs2/quota_global.c:314 stack backtrace: CPU: 1 UID: 0 PID: 10531 Comm: syz.4.1154 Not tainted 6.12.0-rc1-syzkaller-g80cb3fb61135 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:319 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:326 __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:120 dump_stack+0x1c/0x28 lib/dump_stack.c:129 print_circular_bug+0x154/0x1c0 kernel/locking/lockdep.c:2074 check_noncircular+0x310/0x404 kernel/locking/lockdep.c:2206 check_prev_add kernel/locking/lockdep.c:3161 [inline] check_prevs_add kernel/locking/lockdep.c:3280 [inline] validate_chain kernel/locking/lockdep.c:3904 [inline] __lock_acquire+0x33f8/0x77c8 kernel/locking/lockdep.c:5202 lock_acquire+0x240/0x728 kernel/locking/lockdep.c:5825 percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1716 [inline] sb_start_intwrite include/linux/fs.h:1899 [inline] ocfs2_start_trans+0x244/0x71c fs/ocfs2/journal.c:348 ocfs2_acquire_dquot+0x3c4/0xa8c fs/ocfs2/quota_global.c:855 dqget+0x660/0xcec fs/quota/dquot.c:976 dquot_set_dqblk+0x40/0xeac fs/quota/dquot.c:2819 quota_setquota+0x5bc/0x6f0 fs/quota/quota.c:310 do_quotactl+0x508/0x698 fs/quota/quota.c:802 __do_sys_quotactl fs/quota/quota.c:961 [inline] __se_sys_quotactl fs/quota/quota.c:917 [inline] __arm64_sys_quotactl+0x2c0/0xc9c fs/quota/quota.c:917 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:732 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:750 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598