ocfs2: Mounting device (7,1) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected 6.13.0-rc3-syzkaller-g573067a5a685 #0 Not tainted ------------------------------------------------------ syz.1.168/7373 is trying to acquire lock: ffff0000f6436a20 (&oi->ip_alloc_sem){++++}-{4:4}, at: ocfs2_xattr_ibody_find+0x100/0x65c fs/ocfs2/xattr.c:2689 but task is already holding lock: ffff0000f6436ab8 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_xattr_set_handle+0x40c/0x824 fs/ocfs2/xattr.c:3501 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #5 (&oi->ip_xattr_sem){++++}-{4:4}: down_read+0x58/0x2fc kernel/locking/rwsem.c:1524 ocfs2_xattr_get+0x104/0x28c fs/ocfs2/xattr.c:1338 ocfs2_xattr_security_get+0x40/0x54 fs/ocfs2/xattr.c:7231 __vfs_getxattr+0x394/0x3c0 fs/xattr.c:423 smk_fetch+0xc8/0x150 security/smack/smack_lsm.c:306 smack_d_instantiate+0x594/0x880 security/smack/smack_lsm.c:3615 security_d_instantiate+0x100/0x204 security/security.c:4070 d_instantiate+0x5c/0xa0 fs/dcache.c:1902 ocfs2_mknod+0x1998/0x2438 fs/ocfs2/namei.c:450 ocfs2_create+0x194/0x4d4 fs/ocfs2/namei.c:674 lookup_open fs/namei.c:3649 [inline] open_last_lookups fs/namei.c:3748 [inline] path_openat+0x13e4/0x2b14 fs/namei.c:3984 do_filp_open+0x1e8/0x404 fs/namei.c:4014 do_sys_openat2+0x124/0x1b8 fs/open.c:1402 do_sys_open fs/open.c:1417 [inline] __do_sys_openat fs/open.c:1433 [inline] __se_sys_openat fs/open.c:1428 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1428 __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:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 -> #4 (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+0x1f4/0x920 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:1710 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:239 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:745 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 -> #3 (&journal->j_trans_barrier){.+.+}-{4:4}: 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+0x1f4/0x920 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:1710 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:239 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:745 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 -> #2 (sb_internal#4){.+.+}-{0:0}: percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1725 [inline] sb_start_intwrite include/linux/fs.h:1908 [inline] ocfs2_start_trans+0x244/0x71c fs/ocfs2/journal.c:348 ocfs2_mknod+0xe58/0x2438 fs/ocfs2/namei.c:361 ocfs2_create+0x194/0x4d4 fs/ocfs2/namei.c:674 lookup_open fs/namei.c:3649 [inline] open_last_lookups fs/namei.c:3748 [inline] path_openat+0x13e4/0x2b14 fs/namei.c:3984 do_filp_open+0x1e8/0x404 fs/namei.c:4014 do_sys_openat2+0x124/0x1b8 fs/open.c:1402 do_sys_open fs/open.c:1417 [inline] __do_sys_openat fs/open.c:1433 [inline] __se_sys_openat fs/open.c:1428 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1428 __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:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 -> #1 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{4:4}: down_write+0x50/0xc0 kernel/locking/rwsem.c:1577 inode_lock include/linux/fs.h:818 [inline] ocfs2_reserve_local_alloc_bits+0x108/0x24cc fs/ocfs2/localalloc.c:636 ocfs2_reserve_clusters_with_limit+0x194/0xabc fs/ocfs2/suballoc.c:1166 ocfs2_reserve_clusters fs/ocfs2/suballoc.c:1227 [inline] ocfs2_lock_allocators+0x294/0x584 fs/ocfs2/suballoc.c:2746 ocfs2_write_begin_nolock+0x22cc/0x3e90 fs/ocfs2/aops.c:1738 ocfs2_write_begin+0x1ac/0x38c fs/ocfs2/aops.c:1902 generic_perform_write+0x29c/0x868 mm/filemap.c:4055 __generic_file_write_iter+0xfc/0x204 mm/filemap.c:4156 ocfs2_file_write_iter+0x161c/0x1f3c fs/ocfs2/file.c:2469 new_sync_write fs/read_write.c:586 [inline] vfs_write+0x920/0xcf4 fs/read_write.c:679 ksys_pwrite64 fs/read_write.c:786 [inline] __do_sys_pwrite64 fs/read_write.c:794 [inline] __se_sys_pwrite64 fs/read_write.c:791 [inline] __arm64_sys_pwrite64+0x188/0x220 fs/read_write.c:791 __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:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 -> #0 (&oi->ip_alloc_sem){++++}-{4:4}: 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+0x34f0/0x7904 kernel/locking/lockdep.c:5226 lock_acquire+0x23c/0x724 kernel/locking/lockdep.c:5849 down_read+0x58/0x2fc kernel/locking/rwsem.c:1524 ocfs2_xattr_ibody_find+0x100/0x65c fs/ocfs2/xattr.c:2689 ocfs2_xattr_set_handle+0x420/0x824 fs/ocfs2/xattr.c:3503 ocfs2_init_security_set+0xb4/0xd8 fs/ocfs2/xattr.c:7307 ocfs2_mknod+0x1408/0x2438 fs/ocfs2/namei.c:419 ocfs2_create+0x194/0x4d4 fs/ocfs2/namei.c:674 lookup_open fs/namei.c:3649 [inline] open_last_lookups fs/namei.c:3748 [inline] path_openat+0x13e4/0x2b14 fs/namei.c:3984 do_filp_open+0x1e8/0x404 fs/namei.c:4014 do_sys_openat2+0x124/0x1b8 fs/open.c:1402 do_sys_open fs/open.c:1417 [inline] __do_sys_openat fs/open.c:1433 [inline] __se_sys_openat fs/open.c:1428 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1428 __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:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 other info that might help us debug this: Chain exists of: &oi->ip_alloc_sem --> jbd2_handle --> &oi->ip_xattr_sem Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&oi->ip_xattr_sem); lock(jbd2_handle); lock(&oi->ip_xattr_sem); rlock(&oi->ip_alloc_sem); *** DEADLOCK *** 9 locks held by syz.1.168/7373: #0: ffff0000f19a4420 (sb_writers#28){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:515 #1: ffff0000f1e46d80 (&type->i_mutex_dir_key#16){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline] #1: ffff0000f1e46d80 (&type->i_mutex_dir_key#16){+.+.}-{4:4}, at: open_last_lookups fs/namei.c:3745 [inline] #1: ffff0000f1e46d80 (&type->i_mutex_dir_key#16){+.+.}-{4:4}, at: path_openat+0x684/0x2b14 fs/namei.c:3984 #2: ffff0000f1dca640 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline] #2: ffff0000f1dca640 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x164/0x4254 fs/ocfs2/suballoc.c:786 #3: ffff0000f1dcdf40 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline] #3: ffff0000f1dcdf40 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x164/0x4254 fs/ocfs2/suballoc.c:786 #4: ffff0000f64342c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline] #4: ffff0000f64342c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{4:4}, at: ocfs2_reserve_local_alloc_bits+0x108/0x24cc fs/ocfs2/localalloc.c:636 #5: ffff0000f19a4610 (sb_internal#4){.+.+}-{0:0}, at: ocfs2_mknod+0xe58/0x2438 fs/ocfs2/namei.c:361 #6: ffff0000cccac4e8 (&journal->j_trans_barrier){.+.+}-{4:4}, at: ocfs2_start_trans+0x3c4/0x71c fs/ocfs2/journal.c:350 #7: ffff0000d9cd6958 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xf0c/0x11c4 fs/jbd2/transaction.c:446 #8: ffff0000f6436ab8 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_xattr_set_handle+0x40c/0x824 fs/ocfs2/xattr.c:3501 stack backtrace: CPU: 1 UID: 0 PID: 7373 Comm: syz.1.168 Not tainted 6.13.0-rc3-syzkaller-g573067a5a685 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call trace: show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:466 (C) __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+0x34f0/0x7904 kernel/locking/lockdep.c:5226 lock_acquire+0x23c/0x724 kernel/locking/lockdep.c:5849 down_read+0x58/0x2fc kernel/locking/rwsem.c:1524 ocfs2_xattr_ibody_find+0x100/0x65c fs/ocfs2/xattr.c:2689 ocfs2_xattr_set_handle+0x420/0x824 fs/ocfs2/xattr.c:3503 ocfs2_init_security_set+0xb4/0xd8 fs/ocfs2/xattr.c:7307 ocfs2_mknod+0x1408/0x2438 fs/ocfs2/namei.c:419 ocfs2_create+0x194/0x4d4 fs/ocfs2/namei.c:674 lookup_open fs/namei.c:3649 [inline] open_last_lookups fs/namei.c:3748 [inline] path_openat+0x13e4/0x2b14 fs/namei.c:3984 do_filp_open+0x1e8/0x404 fs/namei.c:4014 do_sys_openat2+0x124/0x1b8 fs/open.c:1402 do_sys_open fs/open.c:1417 [inline] __do_sys_openat fs/open.c:1433 [inline] __se_sys_openat fs/open.c:1428 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1428 __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:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600