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.2.45/6934 is trying to acquire lock: ffff0000e2286d80 (&ocfs2_sysfile_lock_key[TRUNCATE_LOG_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline] ffff0000e2286d80 (&ocfs2_sysfile_lock_key[TRUNCATE_LOG_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_xattr_set+0x8a8/0xe9c fs/ocfs2/xattr.c:3652 but task is already holding lock: ffff0000f8df3ff8 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_xattr_set+0x330/0xe9c fs/ocfs2/xattr.c:3613 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&oi->ip_xattr_sem){++++}-{4:4}: down_read+0x58/0x308 kernel/locking/rwsem.c:1537 ocfs2_xattr_get+0xe8/0x220 fs/ocfs2/xattr.c:1368 ocfs2_xattr_security_get+0x40/0x54 fs/ocfs2/xattr.c:7261 __vfs_getxattr+0x394/0x3c0 fs/xattr.c:423 smk_fetch+0xc4/0x150 security/smack/smack_lsm.c:289 smack_d_instantiate+0x53c/0x7a4 security/smack/smack_lsm.c:3653 security_d_instantiate+0x100/0x204 security/security.c:3601 d_instantiate+0x5c/0xac fs/dcache.c:1999 ocfs2_mknod+0x14fc/0x1cf0 fs/ocfs2/namei.c:454 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 -> #2 (&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_local_alloc_slide_window fs/ocfs2/localalloc.c:1254 [inline] ocfs2_reserve_local_alloc_bits+0xb90/0x26a8 fs/ocfs2/localalloc.c:669 ocfs2_reserve_clusters_with_limit+0x198/0x9e0 fs/ocfs2/suballoc.c:1169 ocfs2_reserve_clusters+0x3c/0x50 fs/ocfs2/suballoc.c:1230 ocfs2_expand_inline_dir fs/ocfs2/dir.c:2883 [inline] ocfs2_extend_dir+0x510/0x3964 fs/ocfs2/dir.c:3228 ocfs2_prepare_dir_for_insert+0x27ec/0x446c fs/ocfs2/dir.c:4346 ocfs2_mknod+0x6d4/0x1cf0 fs/ocfs2/namei.c:298 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 -> #1 (sb_internal#2){.+.+}-{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_remove_btree_range+0x67c/0x11cc fs/ocfs2/alloc.c:5760 ocfs2_commit_truncate+0x8f0/0x1de0 fs/ocfs2/alloc.c:7374 ocfs2_truncate_for_delete fs/ocfs2/inode.c:701 [inline] ocfs2_wipe_inode fs/ocfs2/inode.c:868 [inline] ocfs2_delete_inode fs/ocfs2/inode.c:1157 [inline] ocfs2_evict_inode+0xf34/0x3c38 fs/ocfs2/inode.c:1299 evict+0x4e0/0xa74 fs/inode.c:837 iput_final fs/inode.c:1951 [inline] iput+0xc54/0xfdc fs/inode.c:2003 d_delete_notify include/linux/fsnotify.h:377 [inline] vfs_rmdir+0x35c/0x570 fs/namei.c:5249 do_rmdir+0x228/0x404 fs/namei.c:5291 __do_sys_unlinkat fs/namei.c:5468 [inline] __se_sys_unlinkat fs/namei.c:5462 [inline] __arm64_sys_unlinkat+0xc8/0xf8 fs/namei.c:5462 __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 (&ocfs2_sysfile_lock_key[TRUNCATE_LOG_SYSTEM_INODE]){+.+.}-{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 inode_lock include/linux/fs.h:1027 [inline] ocfs2_xattr_set+0x8a8/0xe9c fs/ocfs2/xattr.c:3652 ocfs2_xattr_security_set+0x4c/0x64 fs/ocfs2/xattr.c:7271 __vfs_setxattr+0x3d8/0x400 fs/xattr.c:200 __vfs_setxattr_noperm+0x120/0x5c4 fs/xattr.c:234 __vfs_setxattr_locked+0x1e8/0x214 fs/xattr.c:295 vfs_setxattr+0x158/0x2a8 fs/xattr.c:321 do_setxattr fs/xattr.c:636 [inline] filename_setxattr+0x20c/0x4f8 fs/xattr.c:665 path_setxattrat+0x2e8/0x320 fs/xattr.c:713 __do_sys_lsetxattr fs/xattr.c:754 [inline] __se_sys_lsetxattr fs/xattr.c:750 [inline] __arm64_sys_lsetxattr+0xc0/0xdc fs/xattr.c:750 __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: &ocfs2_sysfile_lock_key[TRUNCATE_LOG_SYSTEM_INODE] --> &journal->j_trans_barrier --> &oi->ip_xattr_sem Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&oi->ip_xattr_sem); lock(&journal->j_trans_barrier); lock(&oi->ip_xattr_sem); lock(&ocfs2_sysfile_lock_key[TRUNCATE_LOG_SYSTEM_INODE]); *** DEADLOCK *** 3 locks held by syz.2.45/6934: #0: ffff0000db144420 (sb_writers#14){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:499 #1: ffff0000f8df42c0 (&type->i_mutex_dir_key#11){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline] #1: ffff0000f8df42c0 (&type->i_mutex_dir_key#11){+.+.}-{4:4}, at: vfs_setxattr+0x138/0x2a8 fs/xattr.c:320 #2: ffff0000f8df3ff8 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_xattr_set+0x330/0xe9c fs/ocfs2/xattr.c:3613 stack backtrace: CPU: 1 UID: 0 PID: 6934 Comm: syz.2.45 Not tainted syzkaller #0 PREEMPT 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 inode_lock include/linux/fs.h:1027 [inline] ocfs2_xattr_set+0x8a8/0xe9c fs/ocfs2/xattr.c:3652 ocfs2_xattr_security_set+0x4c/0x64 fs/ocfs2/xattr.c:7271 __vfs_setxattr+0x3d8/0x400 fs/xattr.c:200 __vfs_setxattr_noperm+0x120/0x5c4 fs/xattr.c:234 __vfs_setxattr_locked+0x1e8/0x214 fs/xattr.c:295 vfs_setxattr+0x158/0x2a8 fs/xattr.c:321 do_setxattr fs/xattr.c:636 [inline] filename_setxattr+0x20c/0x4f8 fs/xattr.c:665 path_setxattrat+0x2e8/0x320 fs/xattr.c:713 __do_sys_lsetxattr fs/xattr.c:754 [inline] __se_sys_lsetxattr fs/xattr.c:750 [inline] __arm64_sys_lsetxattr+0xc0/0xdc fs/xattr.c:750 __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