ocfs2: Mounting device (7,6) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected 6.16.0-rc5-syzkaller-gec4801305969 #0 Not tainted ------------------------------------------------------ syz.6.313/8791 is trying to acquire lock: ffff0000f8ac3ff8 (&oi->ip_xattr_sem){+.+.}-{4:4}, at: ocfs2_xattr_set_handle+0x2a8/0x5e4 fs/ocfs2/xattr.c:3501 but task is already holding lock: ffff0000ea5f4950 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xe4c/0x10dc fs/jbd2/transaction.c:442 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (jbd2_handle){++++}-{0:0}: jbd2_journal_lock_updates+0xb0/0x2fc fs/jbd2/transaction.c:861 __ocfs2_flush_truncate_log+0x280/0xf6c fs/ocfs2/alloc.c:6037 ocfs2_flush_truncate_log+0x4c/0x6c fs/ocfs2/alloc.c:6084 ocfs2_sync_fs+0xf8/0x2a4 fs/ocfs2/super.c:406 sync_filesystem+0x1a0/0x218 fs/sync.c:66 generic_shutdown_super+0x70/0x2b8 fs/super.c:622 kill_block_super+0x44/0x90 fs/super.c:1755 deactivate_locked_super+0xc4/0x12c fs/super.c:474 deactivate_super+0xe0/0x100 fs/super.c:507 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1417 __cleanup_mnt+0x20/0x30 fs/namespace.c:1424 task_work_run+0x1dc/0x260 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] do_notify_resume+0x174/0x1f4 arch/arm64/kernel/entry-common.c:155 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:173 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:182 [inline] el0_svc+0xb8/0x180 arch/arm64/kernel/entry-common.c:880 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 -> #1 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}: down_write+0x50/0xc0 kernel/locking/rwsem.c:1577 inode_lock include/linux/fs.h:869 [inline] ocfs2_xattr_set+0x8a8/0xe9c fs/ocfs2/xattr.c:3622 ocfs2_xattr_trusted_set+0x4c/0x64 fs/ocfs2/xattr.c:7336 __vfs_setxattr+0x3d8/0x400 fs/xattr.c:200 __vfs_setxattr_noperm+0x120/0x5c4 fs/xattr.c:234 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:295 vfs_setxattr+0x158/0x2ac 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_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+0x98/0x2b8 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+0x58/0x180 arch/arm64/kernel/entry-common.c:879 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898 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:3168 [inline] check_prevs_add kernel/locking/lockdep.c:3287 [inline] validate_chain kernel/locking/lockdep.c:3911 [inline] __lock_acquire+0x1774/0x30a4 kernel/locking/lockdep.c:5240 lock_acquire+0x14c/0x2e0 kernel/locking/lockdep.c:5871 down_write+0x50/0xc0 kernel/locking/rwsem.c:1577 ocfs2_xattr_set_handle+0x2a8/0x5e4 fs/ocfs2/xattr.c:3501 ocfs2_init_security_set+0xb4/0xd8 fs/ocfs2/xattr.c:7307 ocfs2_mknod+0x106c/0x1cf0 fs/ocfs2/namei.c:419 ocfs2_mkdir+0x190/0x474 fs/ocfs2/namei.c:656 vfs_mkdir+0x284/0x424 fs/namei.c:4375 do_mkdirat+0x1f8/0x4c8 fs/namei.c:4408 __do_sys_mkdirat fs/namei.c:4425 [inline] __se_sys_mkdirat fs/namei.c:4423 [inline] __arm64_sys_mkdirat+0x8c/0xa4 fs/namei.c:4423 __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+0x58/0x180 arch/arm64/kernel/entry-common.c:879 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898 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 --> &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4 --> jbd2_handle Possible unsafe locking scenario: CPU0 CPU1 ---- ---- rlock(jbd2_handle); lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4); lock(jbd2_handle); lock(&oi->ip_xattr_sem); *** DEADLOCK *** 8 locks held by syz.6.313/8791: #0: ffff0000ced66428 (sb_writers#13){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:557 #1: ffff0000df30c2c0 (&type->i_mutex_dir_key#11/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:914 [inline] #1: ffff0000df30c2c0 (&type->i_mutex_dir_key#11/1){+.+.}-{4:4}, at: filename_create+0x1ac/0x3b4 fs/namei.c:4148 #2: ffff0000f8ac09c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:869 [inline] #2: ffff0000f8ac09c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x12c/0x3b9c fs/ocfs2/suballoc.c:788 #3: ffff0000df30b480 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:869 [inline] #3: ffff0000df30b480 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x12c/0x3b9c fs/ocfs2/suballoc.c:788 #4: ffff0000f8ac1800 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:869 [inline] #4: ffff0000f8ac1800 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{4:4}, at: ocfs2_reserve_local_alloc_bits+0x104/0x26a0 fs/ocfs2/localalloc.c:636 #5: ffff0000ced66618 (sb_internal#3){.+.+}-{0:0}, at: ocfs2_mknod+0xc50/0x1cf0 fs/ocfs2/namei.c:361 #6: ffff0000f61e18e8 (&journal->j_trans_barrier){.+.+}-{4:4}, at: ocfs2_start_trans+0x35c/0x6b0 fs/ocfs2/journal.c:372 #7: ffff0000ea5f4950 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xe4c/0x10dc fs/jbd2/transaction.c:442 stack backtrace: CPU: 0 UID: 0 PID: 8791 Comm: syz.6.313 Not tainted 6.16.0-rc5-syzkaller-gec4801305969 #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 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:2046 check_noncircular+0x154/0x174 kernel/locking/lockdep.c:2178 check_prev_add kernel/locking/lockdep.c:3168 [inline] check_prevs_add kernel/locking/lockdep.c:3287 [inline] validate_chain kernel/locking/lockdep.c:3911 [inline] __lock_acquire+0x1774/0x30a4 kernel/locking/lockdep.c:5240 lock_acquire+0x14c/0x2e0 kernel/locking/lockdep.c:5871 down_write+0x50/0xc0 kernel/locking/rwsem.c:1577 ocfs2_xattr_set_handle+0x2a8/0x5e4 fs/ocfs2/xattr.c:3501 ocfs2_init_security_set+0xb4/0xd8 fs/ocfs2/xattr.c:7307 ocfs2_mknod+0x106c/0x1cf0 fs/ocfs2/namei.c:419 ocfs2_mkdir+0x190/0x474 fs/ocfs2/namei.c:656 vfs_mkdir+0x284/0x424 fs/namei.c:4375 do_mkdirat+0x1f8/0x4c8 fs/namei.c:4408 __do_sys_mkdirat fs/namei.c:4425 [inline] __se_sys_mkdirat fs/namei.c:4423 [inline] __arm64_sys_mkdirat+0x8c/0xa4 fs/namei.c:4423 __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+0x58/0x180 arch/arm64/kernel/entry-common.c:879 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 OCFS2: ERROR (device loop6): int ocfs2_validate_gd_parent(struct super_block *, struct ocfs2_dinode *, struct buffer_head *, int): Group descriptor #17056 has bad parent pointer (312, expected 74) On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is unmounted. OCFS2: File system is now read-only. (syz.6.313,8791,1):ocfs2_search_one_group:1738 ERROR: status = -30 (syz.6.313,8791,1):ocfs2_claim_suballoc_bits:1989 ERROR: status = -30 (syz.6.313,8791,1):ocfs2_claim_suballoc_bits:2063 ERROR: status = -30 (syz.6.313,8791,1):ocfs2_claim_new_inode:2298 ERROR: status = -30 (syz.6.313,8791,1):ocfs2_claim_new_inode:2313 ERROR: status = -30 (syz.6.313,8791,1):ocfs2_mknod_locked:638 ERROR: status = -30 (syz.6.313,8791,1):ocfs2_mknod:385 ERROR: status = -30 (syz.6.313,8791,1):ocfs2_mknod:502 ERROR: status = -30 (syz.6.313,8791,1):ocfs2_create:675 ERROR: status = -30 (syz.6.313,8791,1):ocfs2_check_set_options:1244 ERROR: Invalid heartbeat mount options