loop3: detected capacity change from 0 to 32768
JBD2: Ignoring recovery information on journal
ocfs2: Mounting device (7,3) on (node local, slot 0) with ordered data mode.
======================================================
WARNING: possible circular locking dependency detected
6.12.0-rc2-syzkaller-00260-g9e4c6c1ad9a1 #0 Not tainted
------------------------------------------------------
syz.3.642/8517 is trying to acquire lock:
ffff888079a6ce38 (&oi->ip_xattr_sem){++++}-{3:3}, at: ocfs2_calc_xattr_init+0x5e7/0xcc0 fs/ocfs2/xattr.c:627

but task is already holding lock:
ffff888079b7b480 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
ffff888079b7b480 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{3:3}, at: ocfs2_reserve_suballoc_bits+0x11d/0x4940 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]#4){+.+.}-{3:3}:
       down_write+0x93/0x200 kernel/locking/rwsem.c:1577
       inode_lock include/linux/fs.h:815 [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+0x6c5/0x15d0 fs/ocfs2/inode.c:1216
       evict+0x40c/0x970 fs/inode.c:725
       iput_final fs/inode.c:1877 [inline]
       iput fs/inode.c:1903 [inline]
       iput+0x530/0x890 fs/inode.c:1889
       ocfs2_dentry_iput+0x13a/0x340 fs/ocfs2/dcache.c:411
       dentry_unlink_inode+0x282/0x480 fs/dcache.c:410
       __dentry_kill+0x1d0/0x600 fs/dcache.c:615
       dput.part.0+0x4b1/0x9b0 fs/dcache.c:857
       dput+0x1f/0x30 fs/dcache.c:847
       do_renameat2+0xc6f/0xdd0 fs/namei.c:5172
       __do_sys_rename fs/namei.c:5217 [inline]
       __se_sys_rename fs/namei.c:5215 [inline]
       __x64_sys_rename+0x7d/0xa0 fs/namei.c:5215
       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]){+.+.}-{3:3}:
       down_write+0x93/0x200 kernel/locking/rwsem.c:1577
       inode_lock include/linux/fs.h:815 [inline]
       ocfs2_del_inode_from_orphan+0x112/0x700 fs/ocfs2/namei.c:2726
       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+0x3139/0x3d10 fs/direct-io.c:1303
       ocfs2_direct_IO+0x263/0x360 fs/ocfs2/aops.c:2464
       generic_file_direct_write+0x19a/0x410 mm/filemap.c:3977
       __generic_file_write_iter+0x11b/0x240 mm/filemap.c:4141
       ocfs2_file_write_iter+0xb70/0x20e0 fs/ocfs2/file.c:2456
       do_iter_readv_writev+0x535/0x7f0 fs/read_write.c:834
       vfs_writev+0x363/0xdd0 fs/read_write.c:1064
       do_pwritev+0x1b4/0x270 fs/read_write.c:1165
       __do_sys_pwritev2 fs/read_write.c:1224 [inline]
       __se_sys_pwritev2 fs/read_write.c:1215 [inline]
       __x64_sys_pwritev2+0xef/0x160 fs/read_write.c:1215
       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){++++}-{3:3}:
       down_write+0x93/0x200 kernel/locking/rwsem.c:1577
       ocfs2_try_remove_refcount_tree+0xa8/0x320 fs/ocfs2/refcounttree.c:932
       ocfs2_truncate_file+0xbcb/0x1770 fs/ocfs2/file.c:521
       ocfs2_setattr+0x14a8/0x2460 fs/ocfs2/file.c:1209
       notify_change+0x6a9/0x1230 fs/attr.c:503
       do_truncate+0x15c/0x220 fs/open.c:65
       handle_truncate fs/namei.c:3395 [inline]
       do_open fs/namei.c:3778 [inline]
       path_openat+0x2745/0x2d60 fs/namei.c:3933
       do_filp_open+0x1dc/0x430 fs/namei.c:3960
       do_sys_openat2+0x17a/0x1e0 fs/open.c:1415
       do_sys_open fs/open.c:1430 [inline]
       __do_sys_open fs/open.c:1438 [inline]
       __se_sys_open fs/open.c:1434 [inline]
       __x64_sys_open+0x154/0x1e0 fs/open.c:1434
       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){++++}-{3:3}:
       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+0x250b/0x3ce0 kernel/locking/lockdep.c:5202
       lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5825
       down_read+0x9a/0x330 kernel/locking/rwsem.c:1524
       ocfs2_calc_xattr_init+0x5e7/0xcc0 fs/ocfs2/xattr.c:627
       ocfs2_mknod+0x9f2/0x2440 fs/ocfs2/namei.c:328
       ocfs2_create+0x185/0x450 fs/ocfs2/namei.c:672
       lookup_open.isra.0+0x1177/0x14c0 fs/namei.c:3595
       open_last_lookups fs/namei.c:3694 [inline]
       path_openat+0x904/0x2d60 fs/namei.c:3930
       do_filp_open+0x1dc/0x430 fs/namei.c:3960
       do_sys_openat2+0x17a/0x1e0 fs/open.c:1415
       do_sys_open fs/open.c:1430 [inline]
       __do_sys_openat fs/open.c:1446 [inline]
       __se_sys_openat fs/open.c:1441 [inline]
       __x64_sys_openat+0x175/0x210 fs/open.c:1441
       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]#4

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4);
                               lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]);
                               lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4);
  rlock(&oi->ip_xattr_sem);

 *** DEADLOCK ***

3 locks held by syz.3.642/8517:
 #0: ffff888027bfa420 (sb_writers#26){.+.+}-{0:0}, at: open_last_lookups fs/namei.c:3683 [inline]
 #0: ffff888027bfa420 (sb_writers#26){.+.+}-{0:0}, at: path_openat+0x1f8d/0x2d60 fs/namei.c:3930
 #1: ffff888079a6d100 (&type->i_mutex_dir_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
 #1: ffff888079a6d100 (&type->i_mutex_dir_key#21){+.+.}-{3:3}, at: open_last_lookups fs/namei.c:3691 [inline]
 #1: ffff888079a6d100 (&type->i_mutex_dir_key#21){+.+.}-{3:3}, at: path_openat+0x153e/0x2d60 fs/namei.c:3930
 #2: ffff888079b7b480 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
 #2: ffff888079b7b480 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{3:3}, at: ocfs2_reserve_suballoc_bits+0x11d/0x4940 fs/ocfs2/suballoc.c:786

stack backtrace:
CPU: 1 UID: 60929 PID: 8517 Comm: syz.3.642 Not tainted 6.12.0-rc2-syzkaller-00260-g9e4c6c1ad9a1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_circular_bug+0x41c/0x610 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+0x250b/0x3ce0 kernel/locking/lockdep.c:5202
 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5825
 down_read+0x9a/0x330 kernel/locking/rwsem.c:1524
 ocfs2_calc_xattr_init+0x5e7/0xcc0 fs/ocfs2/xattr.c:627
 ocfs2_mknod+0x9f2/0x2440 fs/ocfs2/namei.c:328
 ocfs2_create+0x185/0x450 fs/ocfs2/namei.c:672
 lookup_open.isra.0+0x1177/0x14c0 fs/namei.c:3595
 open_last_lookups fs/namei.c:3694 [inline]
 path_openat+0x904/0x2d60 fs/namei.c:3930
 do_filp_open+0x1dc/0x430 fs/namei.c:3960
 do_sys_openat2+0x17a/0x1e0 fs/open.c:1415
 do_sys_open fs/open.c:1430 [inline]
 __do_sys_openat fs/open.c:1446 [inline]
 __se_sys_openat fs/open.c:1441 [inline]
 __x64_sys_openat+0x175/0x210 fs/open.c:1441
 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: 0033:0x7f725f97dff9
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:00007f7260813038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f725fb35f80 RCX: 00007f725f97dff9
RDX: 000000000000275a RSI: 00000000200001c0 RDI: ffffffffffffff9c
RBP: 00007f725f9f0296 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000feff R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f725fb35f80 R15: 00007ffdc934e108
 </TASK>