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loop0: detected capacity change from 0 to 262144
JBD2: Ignoring recovery information on journal
ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode.
loop0: detected capacity change from 262144 to 0
syz.0.0: attempt to access beyond end of device
loop0: rw=0, sector=143760, nr_sectors = 8 limit=0
(syz.0.0,5320,0):__ocfs2_xattr_set_value_outside:1385 ERROR: status = -5
(syz.0.0,5320,0):ocfs2_xa_set:2260 ERROR: status = -5
(syz.0.0,5320,0):ocfs2_xattr_ibody_set:2798 ERROR: status = -5
======================================================
WARNING: possible circular locking dependency detected
6.13.0-rc7-syzkaller-00019-gc45323b7560e #0 Not tainted
------------------------------------------------------
syz.0.0/5320 is trying to acquire lock:
ffff888035a06958 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1e94/0x2110 fs/jbd2/transaction.c:448

but task is already holding lock:
ffff888058633120 (&oi->ip_alloc_sem){++++}-{4:4}, at: ocfs2_xattr_ibody_set+0x12c/0xd00 fs/ocfs2/xattr.c:2783

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #1 (&oi->ip_alloc_sem){++++}-{4:4}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
       down_write+0x99/0x220 kernel/locking/rwsem.c:1577
       ocfs2_xattr_ibody_set+0x12c/0xd00 fs/ocfs2/xattr.c:2783
       __ocfs2_xattr_set_handle+0x128/0x10a0 fs/ocfs2/xattr.c:3322
       ocfs2_xattr_set+0x128c/0x1930 fs/ocfs2/xattr.c:3650
       __vfs_setxattr+0x468/0x4a0 fs/xattr.c:200
       __vfs_setxattr_noperm+0x12e/0x660 fs/xattr.c:234
       vfs_setxattr+0x221/0x430 fs/xattr.c:321
       do_setxattr fs/xattr.c:636 [inline]
       file_setxattr+0x1e2/0x2b0 fs/xattr.c:646
       path_setxattrat+0x483/0x510 fs/xattr.c:711
       __do_sys_fsetxattr fs/xattr.c:761 [inline]
       __se_sys_fsetxattr fs/xattr.c:758 [inline]
       __x64_sys_fsetxattr+0xbc/0xe0 fs/xattr.c:758
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #0 (jbd2_handle){++++}-{0:0}:
       check_prev_add kernel/locking/lockdep.c:3161 [inline]
       check_prevs_add kernel/locking/lockdep.c:3280 [inline]
       validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3904
       __lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5226
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
       start_this_handle+0x1eb4/0x2110 fs/jbd2/transaction.c:448
       jbd2__journal_restart+0x243/0x690 fs/jbd2/transaction.c:800
       ocfs2_extend_trans+0x2d7/0x750 fs/ocfs2/journal.c:435
       ocfs2_extend_rotate_transaction fs/ocfs2/alloc.c:2296 [inline]
       ocfs2_truncate_rec+0x91f/0x1c90 fs/ocfs2/alloc.c:5433
       ocfs2_remove_extent+0x1033/0x25f0 fs/ocfs2/alloc.c:5581
       __ocfs2_remove_xattr_range fs/ocfs2/xattr.c:779 [inline]
       ocfs2_xattr_shrink_size fs/ocfs2/xattr.c:832 [inline]
       ocfs2_xattr_value_truncate+0xec5/0x1960 fs/ocfs2/xattr.c:868
       ocfs2_xa_value_truncate fs/ocfs2/xattr.c:1915 [inline]
       ocfs2_xa_prepare_entry fs/ocfs2/xattr.c:2149 [inline]
       ocfs2_xa_set+0x1c7e/0x2c60 fs/ocfs2/xattr.c:2251
       ocfs2_xattr_ibody_set+0x534/0xd00 fs/ocfs2/xattr.c:2795
       __ocfs2_xattr_set_handle+0x128/0x10a0 fs/ocfs2/xattr.c:3322
       ocfs2_xattr_set+0x128c/0x1930 fs/ocfs2/xattr.c:3650
       __vfs_setxattr+0x468/0x4a0 fs/xattr.c:200
       __vfs_setxattr_noperm+0x12e/0x660 fs/xattr.c:234
       vfs_setxattr+0x221/0x430 fs/xattr.c:321
       do_setxattr fs/xattr.c:636 [inline]
       filename_setxattr+0x2af/0x430 fs/xattr.c:665
       path_setxattrat+0x440/0x510 fs/xattr.c:713
       __do_sys_lsetxattr fs/xattr.c:754 [inline]
       __se_sys_lsetxattr fs/xattr.c:750 [inline]
       __x64_sys_lsetxattr+0xbf/0xe0 fs/xattr.c:750
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

other info that might help us debug this:

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&oi->ip_alloc_sem);
                               lock(jbd2_handle);
                               lock(&oi->ip_alloc_sem);
  rlock(jbd2_handle);

 *** DEADLOCK ***

6 locks held by syz.0.0/5320:
 #0: ffff888038a1a420 (sb_writers#13){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:516
 #1: ffff888058633480 (&sb->s_type->i_mutex_key#21){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
 #1: ffff888058633480 (&sb->s_type->i_mutex_key#21){+.+.}-{4:4}, at: vfs_setxattr+0x1e1/0x430 fs/xattr.c:320
 #2: ffff8880586331b8 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_xattr_set+0x633/0x1930 fs/ocfs2/xattr.c:3583
 #3: ffff888038a1a610 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_xattr_set+0x1192/0x1930 fs/ocfs2/xattr.c:3643
 #4: ffff888000faf0e8 (&journal->j_trans_barrier){.+.+}-{4:4}, at: ocfs2_start_trans+0x3be/0x700 fs/ocfs2/journal.c:350
 #5: ffff888058633120 (&oi->ip_alloc_sem){++++}-{4:4}, at: ocfs2_xattr_ibody_set+0x12c/0xd00 fs/ocfs2/xattr.c:2783

stack backtrace:
CPU: 0 UID: 0 PID: 5320 Comm: syz.0.0 Not tainted 6.13.0-rc7-syzkaller-00019-gc45323b7560e #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 print_circular_bug+0x13a/0x1b0 kernel/locking/lockdep.c:2074
 check_noncircular+0x36a/0x4a0 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+0x18ef/0x5920 kernel/locking/lockdep.c:3904
 __lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5226
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
 start_this_handle+0x1eb4/0x2110 fs/jbd2/transaction.c:448
 jbd2__journal_restart+0x243/0x690 fs/jbd2/transaction.c:800
 ocfs2_extend_trans+0x2d7/0x750 fs/ocfs2/journal.c:435
 ocfs2_extend_rotate_transaction fs/ocfs2/alloc.c:2296 [inline]
 ocfs2_truncate_rec+0x91f/0x1c90 fs/ocfs2/alloc.c:5433
 ocfs2_remove_extent+0x1033/0x25f0 fs/ocfs2/alloc.c:5581
 __ocfs2_remove_xattr_range fs/ocfs2/xattr.c:779 [inline]
 ocfs2_xattr_shrink_size fs/ocfs2/xattr.c:832 [inline]
 ocfs2_xattr_value_truncate+0xec5/0x1960 fs/ocfs2/xattr.c:868
 ocfs2_xa_value_truncate fs/ocfs2/xattr.c:1915 [inline]
 ocfs2_xa_prepare_entry fs/ocfs2/xattr.c:2149 [inline]
 ocfs2_xa_set+0x1c7e/0x2c60 fs/ocfs2/xattr.c:2251
 ocfs2_xattr_ibody_set+0x534/0xd00 fs/ocfs2/xattr.c:2795
 __ocfs2_xattr_set_handle+0x128/0x10a0 fs/ocfs2/xattr.c:3322
 ocfs2_xattr_set+0x128c/0x1930 fs/ocfs2/xattr.c:3650
 __vfs_setxattr+0x468/0x4a0 fs/xattr.c:200
 __vfs_setxattr_noperm+0x12e/0x660 fs/xattr.c:234
 vfs_setxattr+0x221/0x430 fs/xattr.c:321
 do_setxattr fs/xattr.c:636 [inline]
 filename_setxattr+0x2af/0x430 fs/xattr.c:665
 path_setxattrat+0x440/0x510 fs/xattr.c:713
 __do_sys_lsetxattr fs/xattr.c:754 [inline]
 __se_sys_lsetxattr fs/xattr.c:750 [inline]
 __x64_sys_lsetxattr+0xbf/0xe0 fs/xattr.c:750
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f706a585d29
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:00007f70669f5038 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd
RAX: ffffffffffffffda RBX: 00007f706a775fa0 RCX: 00007f706a585d29
RDX: 00000000200001c0 RSI: 0000000020000180 RDI: 0000000020000100
RBP: 00007f706a601b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f706a775fa0 R15: 00007ffe759e7628
 </TASK>
(syz.0.0,5320,0):__ocfs2_journal_access:705 ERROR: Error -30 getting 1 access to buffer!
(syz.0.0,5320,0):ocfs2_journal_access_path:751 ERROR: status = -30
(syz.0.0,5320,0):ocfs2_truncate_rec:5443 ERROR: status = -30
(syz.0.0,5320,0):ocfs2_remove_extent:5584 ERROR: status = -30
(syz.0.0,5320,0):__ocfs2_remove_xattr_range:782 ERROR: status = -30
(syz.0.0,5320,0):ocfs2_xattr_shrink_size:836 ERROR: status = -30
(syz.0.0,5320,0):__ocfs2_journal_access:705 ERROR: Error -30 getting 1 access to buffer!
(syz.0.0,5320,0):ocfs2_xa_prepare_entry:2151 ERROR: status = -30
(syz.0.0,5320,0):ocfs2_xa_set:2254 ERROR: status = -30
------------[ cut here ]------------
kernel BUG at fs/jbd2/transaction.c:1513!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5320 Comm: syz.0.0 Not tainted 6.13.0-rc7-syzkaller-00019-gc45323b7560e #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:jbd2_journal_dirty_metadata+0xbab/0xc00 fs/jbd2/transaction.c:1512
Code: ff e9 74 fc ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c af fc ff ff 4c 89 ef e8 60 c5 96 ff e9 a2 fc ff ff e8 46 5b 30 ff 90 <0f> 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 95 fd ff ff 48 89 df e8
RSP: 0018:ffffc9000d2b6b38 EFLAGS: 00010283
RAX: ffffffff826f272a RBX: ffff88801cd13520 RCX: 0000000000100000
RDX: ffffc9000e61a000 RSI: 00000000000644f3 RDI: 00000000000644f4
RBP: 1ffff110039a26a4 R08: 0000000000000003 R09: fffff52001a56d58
R10: dffffc0000000000 R11: fffff52001a56d58 R12: ffff88801cd13518
R13: 1ffff11007eb1fa2 R14: ffff88801cd10280 R15: ffff88801cd134b8
FS:  00007f70669f56c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f70669d3fe0 CR3: 000000003fe3c000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ocfs2_journal_dirty+0x156/0x7b0 fs/ocfs2/journal.c:812
 ocfs2_xa_journal_dirty fs/ocfs2/xattr.c:1453 [inline]
 ocfs2_xa_set+0x2363/0x2c60 fs/ocfs2/xattr.c:2263
 ocfs2_xattr_ibody_set+0x534/0xd00 fs/ocfs2/xattr.c:2795
 __ocfs2_xattr_set_handle+0x128/0x10a0 fs/ocfs2/xattr.c:3322
 ocfs2_xattr_set+0x128c/0x1930 fs/ocfs2/xattr.c:3650
 __vfs_setxattr+0x468/0x4a0 fs/xattr.c:200
 __vfs_setxattr_noperm+0x12e/0x660 fs/xattr.c:234
 vfs_setxattr+0x221/0x430 fs/xattr.c:321
 do_setxattr fs/xattr.c:636 [inline]
 filename_setxattr+0x2af/0x430 fs/xattr.c:665
 path_setxattrat+0x440/0x510 fs/xattr.c:713
 __do_sys_lsetxattr fs/xattr.c:754 [inline]
 __se_sys_lsetxattr fs/xattr.c:750 [inline]
 __x64_sys_lsetxattr+0xbf/0xe0 fs/xattr.c:750
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f706a585d29
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:00007f70669f5038 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd
RAX: ffffffffffffffda RBX: 00007f706a775fa0 RCX: 00007f706a585d29
RDX: 00000000200001c0 RSI: 0000000020000180 RDI: 0000000020000100
RBP: 00007f706a601b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f706a775fa0 R15: 00007ffe759e7628
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:jbd2_journal_dirty_metadata+0xbab/0xc00 fs/jbd2/transaction.c:1512
Code: ff e9 74 fc ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c af fc ff ff 4c 89 ef e8 60 c5 96 ff e9 a2 fc ff ff e8 46 5b 30 ff 90 <0f> 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 95 fd ff ff 48 89 df e8
RSP: 0018:ffffc9000d2b6b38 EFLAGS: 00010283
RAX: ffffffff826f272a RBX: ffff88801cd13520 RCX: 0000000000100000
RDX: ffffc9000e61a000 RSI: 00000000000644f3 RDI: 00000000000644f4
RBP: 1ffff110039a26a4 R08: 0000000000000003 R09: fffff52001a56d58
R10: dffffc0000000000 R11: fffff52001a56d58 R12: ffff88801cd13518
R13: 1ffff11007eb1fa2 R14: ffff88801cd10280 R15: ffff88801cd134b8
FS:  00007f70669f56c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f70669d3fe0 CR3: 000000003fe3c000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400