loop5: detected capacity change from 0 to 32768 ocfs2: Mounting device (7,5) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected 6.1.118-syzkaller #0 Not tainted ------------------------------------------------------ syz.5.8762/6408 is trying to acquire lock: ffff88804da26650 (sb_internal#3){.+.+}-{0:0}, at: ocfs2_setattr+0xa89/0x1e60 fs/ocfs2/file.c:1263 but task is already holding lock: ffff88804a893120 (&ocfs2_file_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_setattr+0xa7a/0x1e60 fs/ocfs2/file.c:1262 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #4 (&ocfs2_file_ip_alloc_sem_key){++++}-{3:3}: lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662 down_write+0x36/0x60 kernel/locking/rwsem.c:1573 ocfs2_try_remove_refcount_tree+0xb2/0x330 fs/ocfs2/refcounttree.c:932 ocfs2_xattr_set+0xa4b/0x1930 fs/ocfs2/xattr.c:3673 ocfs2_set_acl+0x4cb/0x570 fs/ocfs2/acl.c:254 ocfs2_iop_set_acl+0x252/0x3c0 fs/ocfs2/acl.c:285 set_posix_acl fs/posix_acl.c:1160 [inline] posix_acl_xattr_set+0x37b/0x3e0 fs/posix_acl.c:1189 __vfs_removexattr+0x3ce/0x410 fs/xattr.c:479 __vfs_removexattr_locked+0x1fe/0x410 fs/xattr.c:514 vfs_removexattr+0xff/0x2a0 fs/xattr.c:536 removexattr fs/xattr.c:878 [inline] path_removexattr+0x22a/0x320 fs/xattr.c:892 __do_sys_lremovexattr fs/xattr.c:912 [inline] __se_sys_lremovexattr fs/xattr.c:909 [inline] __x64_sys_lremovexattr+0x59/0x70 fs/xattr.c:909 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 -> #3 (&oi->ip_xattr_sem){++++}-{3:3}: lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662 down_read+0xad/0xa30 kernel/locking/rwsem.c:1520 ocfs2_init_acl+0x398/0x930 fs/ocfs2/acl.c:365 ocfs2_mknod+0x1f75/0x2e20 fs/ocfs2/namei.c:408 vfs_mknod+0x444/0x4d0 fs/namei.c:3985 do_mknodat+0x3f8/0x5a0 __do_sys_mknodat fs/namei.c:4063 [inline] __se_sys_mknodat fs/namei.c:4060 [inline] __x64_sys_mknodat+0xa5/0xc0 fs/namei.c:4060 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 -> #2 (jbd2_handle){++++}-{0:0}: lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662 start_this_handle+0x1f71/0x21b0 fs/jbd2/transaction.c:463 jbd2__journal_start+0x2d1/0x5c0 fs/jbd2/transaction.c:520 jbd2_journal_start+0x25/0x30 fs/jbd2/transaction.c:559 ocfs2_start_trans+0x3c0/0x6f0 fs/ocfs2/journal.c:354 ocfs2_shutdown_local_alloc+0x214/0xa90 fs/ocfs2/localalloc.c:416 ocfs2_dismount_volume+0x1fb/0x960 fs/ocfs2/super.c:1879 generic_shutdown_super+0x130/0x340 fs/super.c:501 kill_block_super+0x7a/0xe0 fs/super.c:1470 deactivate_locked_super+0xa0/0x110 fs/super.c:332 cleanup_mnt+0x490/0x520 fs/namespace.c:1186 task_work_run+0x246/0x300 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:177 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline] syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x68/0xd2 -> #1 (&journal->j_trans_barrier){.+.+}-{3:3}: lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662 down_read+0xad/0xa30 kernel/locking/rwsem.c:1520 ocfs2_start_trans+0x3b5/0x6f0 fs/ocfs2/journal.c:352 ocfs2_shutdown_local_alloc+0x214/0xa90 fs/ocfs2/localalloc.c:416 ocfs2_dismount_volume+0x1fb/0x960 fs/ocfs2/super.c:1879 generic_shutdown_super+0x130/0x340 fs/super.c:501 kill_block_super+0x7a/0xe0 fs/super.c:1470 deactivate_locked_super+0xa0/0x110 fs/super.c:332 cleanup_mnt+0x490/0x520 fs/namespace.c:1186 task_work_run+0x246/0x300 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:177 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline] syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x68/0xd2 -> #0 (sb_internal#3){.+.+}-{0:0}: check_prev_add kernel/locking/lockdep.c:3090 [inline] check_prevs_add kernel/locking/lockdep.c:3209 [inline] validate_chain+0x1661/0x5950 kernel/locking/lockdep.c:3825 __lock_acquire+0x125b/0x1f80 kernel/locking/lockdep.c:5049 lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662 percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1891 [inline] sb_start_intwrite include/linux/fs.h:2013 [inline] ocfs2_start_trans+0x2b0/0x6f0 fs/ocfs2/journal.c:350 ocfs2_setattr+0xa89/0x1e60 fs/ocfs2/file.c:1263 notify_change+0xce3/0xfc0 fs/attr.c:499 chown_common+0x5aa/0x900 fs/open.c:736 vfs_fchown fs/open.c:804 [inline] ksys_fchown+0xde/0x150 fs/open.c:815 __do_sys_fchown fs/open.c:823 [inline] __se_sys_fchown fs/open.c:821 [inline] __x64_sys_fchown+0x76/0x80 fs/open.c:821 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 other info that might help us debug this: Chain exists of: sb_internal#3 --> &oi->ip_xattr_sem --> &ocfs2_file_ip_alloc_sem_key Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ocfs2_file_ip_alloc_sem_key); lock(&oi->ip_xattr_sem); lock(&ocfs2_file_ip_alloc_sem_key); lock(sb_internal#3); *** DEADLOCK *** 3 locks held by syz.5.8762/6408: #0: ffff88804da26460 (sb_writers#28){.+.+}-{0:0}, at: mnt_want_write_file+0x5a/0x1f0 fs/namespace.c:437 #1: ffff88804a893488 (&type->i_mutex_dir_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #1: ffff88804a893488 (&type->i_mutex_dir_key#9){++++}-{3:3}, at: chown_common+0x3e5/0x900 fs/open.c:726 #2: ffff88804a893120 (&ocfs2_file_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_setattr+0xa7a/0x1e60 fs/ocfs2/file.c:1262 stack backtrace: CPU: 1 PID: 6408 Comm: syz.5.8762 Not tainted 6.1.118-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 check_noncircular+0x2fa/0x3b0 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+0x1661/0x5950 kernel/locking/lockdep.c:3825 __lock_acquire+0x125b/0x1f80 kernel/locking/lockdep.c:5049 lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662 percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1891 [inline] sb_start_intwrite include/linux/fs.h:2013 [inline] ocfs2_start_trans+0x2b0/0x6f0 fs/ocfs2/journal.c:350 ocfs2_setattr+0xa89/0x1e60 fs/ocfs2/file.c:1263 notify_change+0xce3/0xfc0 fs/attr.c:499 chown_common+0x5aa/0x900 fs/open.c:736 vfs_fchown fs/open.c:804 [inline] ksys_fchown+0xde/0x150 fs/open.c:815 __do_sys_fchown fs/open.c:823 [inline] __se_sys_fchown fs/open.c:821 [inline] __x64_sys_fchown+0x76/0x80 fs/open.c:821 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f1e0537e719 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f1e06116038 EFLAGS: 00000246 ORIG_RAX: 000000000000005d RAX: ffffffffffffffda RBX: 00007f1e05535f80 RCX: 00007f1e0537e719 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000000000004 RBP: 00007f1e053f175e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f1e05535f80 R15: 00007fff037a7d88