====================================================== WARNING: possible circular locking dependency detected 6.13.0-rc7-syzkaller-00043-g619f0b6fad52 #0 Not tainted ------------------------------------------------------ syz.6.239/7993 is trying to acquire lock: ffff888057cd6ab8 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_calc_xattr_init+0x5e7/0xcc0 fs/ocfs2/xattr.c:627 but task is already holding lock: ffff888050402640 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline] ffff888050402640 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x11d/0x48e0 fs/ocfs2/suballoc.c:786 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}: down_write+0x93/0x200 kernel/locking/rwsem.c:1577 inode_lock include/linux/fs.h:818 [inline] ocfs2_remove_inode+0x15c/0x8a0 fs/ocfs2/inode.c:655 ocfs2_wipe_inode+0x455/0x1220 fs/ocfs2/inode.c:818 ocfs2_delete_inode fs/ocfs2/inode.c:1079 [inline] ocfs2_evict_inode+0x6da/0x1610 fs/ocfs2/inode.c:1216 evict+0x40c/0x960 fs/inode.c:796 iput_final fs/inode.c:1946 [inline] iput fs/inode.c:1972 [inline] iput+0x52a/0x890 fs/inode.c:1958 d_delete_notify include/linux/fsnotify.h:332 [inline] vfs_rmdir fs/namei.c:4407 [inline] vfs_rmdir+0x487/0x690 fs/namei.c:4371 do_rmdir+0x3a2/0x410 fs/namei.c:4453 __do_sys_rmdir fs/namei.c:4472 [inline] __se_sys_rmdir fs/namei.c:4470 [inline] __x64_sys_rmdir+0xc5/0x110 fs/namei.c:4470 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #2 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]){+.+.}-{4:4}: down_write+0x93/0x200 kernel/locking/rwsem.c:1577 inode_lock include/linux/fs.h:818 [inline] ocfs2_del_inode_from_orphan+0x112/0x700 fs/ocfs2/namei.c:2728 ocfs2_dio_end_io_write+0x2cc/0xf30 fs/ocfs2/aops.c:2329 ocfs2_dio_end_io+0x139/0x2a0 fs/ocfs2/aops.c:2427 dio_complete+0x21b/0x8e0 fs/direct-io.c:281 __blockdev_direct_IO+0x3412/0x40b0 fs/direct-io.c:1303 ocfs2_direct_IO+0x263/0x360 fs/ocfs2/aops.c:2464 generic_file_direct_write+0x19a/0x410 mm/filemap.c:3969 __generic_file_write_iter+0x11b/0x240 mm/filemap.c:4133 ocfs2_file_write_iter+0xbd0/0x21d0 fs/ocfs2/file.c:2469 do_iter_readv_writev+0x535/0x7f0 fs/read_write.c:820 vfs_writev+0x363/0xdd0 fs/read_write.c:1050 do_pwritev+0x1b1/0x270 fs/read_write.c:1146 __do_sys_pwritev2 fs/read_write.c:1204 [inline] __se_sys_pwritev2 fs/read_write.c:1195 [inline] __x64_sys_pwritev2+0xef/0x160 fs/read_write.c:1195 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (&ocfs2_file_ip_alloc_sem_key){++++}-{4:4}: down_write+0x93/0x200 kernel/locking/rwsem.c:1577 ocfs2_try_remove_refcount_tree+0xa8/0x320 fs/ocfs2/refcounttree.c:932 ocfs2_truncate_file+0xbb9/0x1760 fs/ocfs2/file.c:521 ocfs2_setattr+0x15a0/0x2570 fs/ocfs2/file.c:1212 notify_change+0x6a9/0x1230 fs/attr.c:552 do_truncate+0x15c/0x220 fs/open.c:65 handle_truncate fs/namei.c:3449 [inline] do_open fs/namei.c:3832 [inline] path_openat+0x2745/0x2d60 fs/namei.c:3987 do_filp_open+0x20c/0x470 fs/namei.c:4014 do_sys_openat2+0x17a/0x1e0 fs/open.c:1402 do_sys_open fs/open.c:1417 [inline] __do_sys_open fs/open.c:1425 [inline] __se_sys_open fs/open.c:1421 [inline] __x64_sys_open+0x154/0x1e0 fs/open.c:1421 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (&oi->ip_xattr_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+0x249e/0x3c40 kernel/locking/lockdep.c:5226 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849 down_read+0x9a/0x330 kernel/locking/rwsem.c:1524 ocfs2_calc_xattr_init+0x5e7/0xcc0 fs/ocfs2/xattr.c:627 ocfs2_mknod+0x9f9/0x2440 fs/ocfs2/namei.c:330 ocfs2_mkdir+0x185/0x450 fs/ocfs2/namei.c:657 vfs_mkdir+0x580/0x860 fs/namei.c:4311 do_mkdirat+0x301/0x3a0 fs/namei.c:4334 __do_sys_mkdirat fs/namei.c:4349 [inline] __se_sys_mkdirat fs/namei.c:4347 [inline] __x64_sys_mkdirat+0x83/0xb0 fs/namei.c:4347 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 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.6.239/7993: #0: ffff8880283ee420 (sb_writers#13){.+.+}-{0:0}, at: filename_create+0x10d/0x530 fs/namei.c:4073 #1: ffff888057cd6d80 (&type->i_mutex_dir_key#8/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:853 [inline] #1: ffff888057cd6d80 (&type->i_mutex_dir_key#8/1){+.+.}-{4:4}, at: filename_create+0x1c2/0x530 fs/namei.c:4080 #2: ffff888050402640 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline] #2: ffff888050402640 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x11d/0x48e0 fs/ocfs2/suballoc.c:786 stack backtrace: CPU: 0 UID: 0 PID: 7993 Comm: syz.6.239 Not tainted 6.13.0-rc7-syzkaller-00043-g619f0b6fad52 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_circular_bug+0x419/0x5d0 kernel/locking/lockdep.c:2074 check_noncircular+0x31a/0x400 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+0x249e/0x3c40 kernel/locking/lockdep.c:5226 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849 down_read+0x9a/0x330 kernel/locking/rwsem.c:1524 ocfs2_calc_xattr_init+0x5e7/0xcc0 fs/ocfs2/xattr.c:627 ocfs2_mknod+0x9f9/0x2440 fs/ocfs2/namei.c:330 ocfs2_mkdir+0x185/0x450 fs/ocfs2/namei.c:657 vfs_mkdir+0x580/0x860 fs/namei.c:4311 do_mkdirat+0x301/0x3a0 fs/namei.c:4334 __do_sys_mkdirat fs/namei.c:4349 [inline] __se_sys_mkdirat fs/namei.c:4347 [inline] __x64_sys_mkdirat+0x83/0xb0 fs/namei.c:4347 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0963d85d29 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:00007f0964b1f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007f0963f76080 RCX: 00007f0963d85d29 RDX: 0000000000000000 RSI: 0000000020001dc0 RDI: ffffffffffffff9c RBP: 00007f0963e01b08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f0963f76080 R15: 00007fff801abba8