loop1: detected capacity change from 0 to 32768 ocfs2: Mounting device (7,1) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected 6.15.0-rc1-next-20250411-syzkaller #0 Not tainted ------------------------------------------------------ syz.1.219/6769 is trying to acquire lock: ffff88805f615c78 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_calc_xattr_init+0x20a/0xd70 fs/ocfs2/xattr.c:627 but task is already holding lock: ffff88805f58df40 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:866 [inline] ffff88805f58df40 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x19a/0x50e0 fs/ocfs2/suballoc.c:788 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{4:4}: lock_acquire+0x116/0x2f0 kernel/locking/lockdep.c:5866 down_write+0x9c/0x220 kernel/locking/rwsem.c:1577 inode_lock include/linux/fs.h:866 [inline] ocfs2_remove_inode fs/ocfs2/inode.c:669 [inline] ocfs2_wipe_inode fs/ocfs2/inode.c:832 [inline] ocfs2_delete_inode fs/ocfs2/inode.c:1093 [inline] ocfs2_evict_inode+0x16d7/0x47c0 fs/ocfs2/inode.c:1230 evict+0x4f9/0x9b0 fs/inode.c:810 d_delete_notify include/linux/fsnotify.h:402 [inline] vfs_rmdir+0x3d7/0x510 fs/namei.c:4436 do_rmdir+0x37b/0x550 fs/namei.c:4478 __do_sys_unlinkat fs/namei.c:4652 [inline] __se_sys_unlinkat fs/namei.c:4646 [inline] __x64_sys_unlinkat+0xde/0xf0 fs/namei.c:4646 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #2 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]){+.+.}-{4:4}: lock_acquire+0x116/0x2f0 kernel/locking/lockdep.c:5866 down_write+0x9c/0x220 kernel/locking/rwsem.c:1577 inode_lock include/linux/fs.h:866 [inline] ocfs2_del_inode_from_orphan+0x15d/0x8c0 fs/ocfs2/namei.c:2727 ocfs2_dio_end_io_write fs/ocfs2/aops.c:2303 [inline] ocfs2_dio_end_io+0x568/0x1330 fs/ocfs2/aops.c:2401 dio_complete+0x250/0x720 fs/direct-io.c:281 __blockdev_direct_IO+0x3baf/0x4540 fs/direct-io.c:1303 ocfs2_direct_IO+0x255/0x2c0 fs/ocfs2/aops.c:2438 generic_file_direct_write+0x1e8/0x400 mm/filemap.c:4037 __generic_file_write_iter+0x126/0x230 mm/filemap.c:4206 ocfs2_file_write_iter+0x190f/0x20d0 fs/ocfs2/file.c:2469 iter_file_splice_write+0xbdf/0x1530 fs/splice.c:738 do_splice_from fs/splice.c:935 [inline] direct_splice_actor+0x11b/0x220 fs/splice.c:1158 splice_direct_to_actor+0x595/0xc90 fs/splice.c:1102 do_splice_direct_actor fs/splice.c:1201 [inline] do_splice_direct+0x281/0x3d0 fs/splice.c:1227 do_sendfile+0x582/0x8d0 fs/read_write.c:1368 __do_sys_sendfile64 fs/read_write.c:1429 [inline] __se_sys_sendfile64+0x17e/0x1e0 fs/read_write.c:1415 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (&oi->ip_alloc_sem){++++}-{4:4}: lock_acquire+0x116/0x2f0 kernel/locking/lockdep.c:5866 down_write+0x9c/0x220 kernel/locking/rwsem.c:1577 ocfs2_try_remove_refcount_tree+0xbb/0x350 fs/ocfs2/refcounttree.c:932 ocfs2_truncate_file+0xe1d/0x1560 fs/ocfs2/file.c:521 ocfs2_setattr+0x1894/0x1ef0 fs/ocfs2/file.c:1212 notify_change+0xbca/0xe90 fs/attr.c:552 do_truncate+0x222/0x310 fs/open.c:65 do_coredump+0x2a32/0x3260 fs/coredump.c:736 get_signal+0x13ed/0x1730 kernel/signal.c:3019 arch_do_signal_or_restart+0x98/0x840 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] irqentry_exit_to_user_mode+0x7e/0x250 kernel/entry/common.c:231 exc_page_fault+0x5c2/0x8e0 arch/x86/mm/fault.c:1538 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 -> #0 (&oi->ip_xattr_sem){++++}-{4:4}: check_prev_add kernel/locking/lockdep.c:3166 [inline] check_prevs_add kernel/locking/lockdep.c:3285 [inline] validate_chain+0xa69/0x24e0 kernel/locking/lockdep.c:3909 __lock_acquire+0xad5/0xd80 kernel/locking/lockdep.c:5235 lock_acquire+0x116/0x2f0 kernel/locking/lockdep.c:5866 down_read+0xb3/0xa50 kernel/locking/rwsem.c:1524 ocfs2_calc_xattr_init+0x20a/0xd70 fs/ocfs2/xattr.c:627 ocfs2_mknod+0x1235/0x2b30 fs/ocfs2/namei.c:330 ocfs2_create+0x1ad/0x480 fs/ocfs2/namei.c:673 lookup_open fs/namei.c:3670 [inline] open_last_lookups fs/namei.c:3769 [inline] path_openat+0x194b/0x35d0 fs/namei.c:4005 do_filp_open+0x284/0x4e0 fs/namei.c:4035 do_sys_openat2+0x12b/0x1d0 fs/open.c:1429 do_sys_open fs/open.c:1444 [inline] __do_sys_openat fs/open.c:1460 [inline] __se_sys_openat fs/open.c:1455 [inline] __x64_sys_openat+0x249/0x2a0 fs/open.c:1455 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Chain exists of: &oi->ip_xattr_sem --> &ocfs2_sysfile_lock_key[args->fi_sysfile_type] --> &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2); lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]); lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2); rlock(&oi->ip_xattr_sem); *** DEADLOCK *** 3 locks held by syz.1.219/6769: #0: ffff888025114428 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:556 #1: ffff88805f615f40 (&type->i_mutex_dir_key#13){++++}-{4:4}, at: inode_lock include/linux/fs.h:866 [inline] #1: ffff88805f615f40 (&type->i_mutex_dir_key#13){++++}-{4:4}, at: open_last_lookups fs/namei.c:3766 [inline] #1: ffff88805f615f40 (&type->i_mutex_dir_key#13){++++}-{4:4}, at: path_openat+0x8af/0x35d0 fs/namei.c:4005 #2: ffff88805f58df40 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:866 [inline] #2: ffff88805f58df40 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x19a/0x50e0 fs/ocfs2/suballoc.c:788 stack backtrace: CPU: 0 UID: 0 PID: 6769 Comm: syz.1.219 Not tainted 6.15.0-rc1-next-20250411-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_circular_bug+0x2e1/0x300 kernel/locking/lockdep.c:2079 check_noncircular+0x142/0x160 kernel/locking/lockdep.c:2211 check_prev_add kernel/locking/lockdep.c:3166 [inline] check_prevs_add kernel/locking/lockdep.c:3285 [inline] validate_chain+0xa69/0x24e0 kernel/locking/lockdep.c:3909 __lock_acquire+0xad5/0xd80 kernel/locking/lockdep.c:5235 lock_acquire+0x116/0x2f0 kernel/locking/lockdep.c:5866 down_read+0xb3/0xa50 kernel/locking/rwsem.c:1524 ocfs2_calc_xattr_init+0x20a/0xd70 fs/ocfs2/xattr.c:627 ocfs2_mknod+0x1235/0x2b30 fs/ocfs2/namei.c:330 ocfs2_create+0x1ad/0x480 fs/ocfs2/namei.c:673 lookup_open fs/namei.c:3670 [inline] open_last_lookups fs/namei.c:3769 [inline] path_openat+0x194b/0x35d0 fs/namei.c:4005 do_filp_open+0x284/0x4e0 fs/namei.c:4035 do_sys_openat2+0x12b/0x1d0 fs/open.c:1429 do_sys_open fs/open.c:1444 [inline] __do_sys_openat fs/open.c:1460 [inline] __se_sys_openat fs/open.c:1455 [inline] __x64_sys_openat+0x249/0x2a0 fs/open.c:1455 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0eaa38e169 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:00007f0eab274038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f0eaa5b5fa0 RCX: 00007f0eaa38e169 RDX: 000000000000275a RSI: 0000200000000040 RDI: ffffffffffffff9c RBP: 00007f0eaa410a68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f0eaa5b5fa0 R15: 00007ffeb3982598 ocfs2: Unmounting device (7,1) on (node local)