------------[ cut here ]------------
BTRFS: Transaction aborted (error -2)
WARNING: fs/btrfs/extent-tree.c:3181 at do_free_extent_accounting fs/btrfs/extent-tree.c:3181 [inline], CPU#0: syz-executor/5837
WARNING: fs/btrfs/extent-tree.c:3181 at __btrfs_free_extent.isra.0+0x2478/0x2bb0 fs/btrfs/extent-tree.c:3554, CPU#0: syz-executor/5837
Modules linked in:
CPU: 0 UID: 0 PID: 5837 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:do_free_extent_accounting fs/btrfs/extent-tree.c:3181 [inline]
RIP: 0010:__btrfs_free_extent.isra.0+0x247c/0x2bb0 fs/btrfs/extent-tree.c:3554
Code: 00 00 48 c7 c7 00 c3 03 8c c6 05 07 e2 94 0c 01 e8 59 3a b7 fd e9 3b 0f 01 fd e8 2f 7f db fd 48 8d 3d c8 6b b5 0c 8b 74 24 38 <67> 48 0f b9 3a bb 01 00 00 00 e9 ad 15 01 fd e8 10 7f db fd 48 8b
RSP: 0018:ffffc90003937750 EFLAGS: 00010293
RAX: 0000000000000000 RBX: fffffffffffffffe RCX: ffffffff842d580d
RDX: ffff888025bd8000 RSI: 00000000fffffffe RDI: ffffffff90e2c8a0
RBP: 000000000051c000 R08: 0000000000000005 R09: fffffffffffffffb
R10: fffffffffffffffe R11: 0000000000000000 R12: ffff8880267ad160
R13: 0000000000000000 R14: 00000000fffffffe R15: 0000000000001000
FS:  000055557c697500(0000) GS:ffff88812433c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f87fc600020 CR3: 000000005a46a000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 run_delayed_data_ref fs/btrfs/extent-tree.c:1665 [inline]
 run_one_delayed_ref fs/btrfs/extent-tree.c:1855 [inline]
 btrfs_run_delayed_refs_for_head fs/btrfs/extent-tree.c:2058 [inline]
 __btrfs_run_delayed_refs+0x910/0x3d20 fs/btrfs/extent-tree.c:2133
 btrfs_run_delayed_refs+0x1a4/0x3c0 fs/btrfs/extent-tree.c:2245
 btrfs_commit_transaction+0x9ae/0x3860 fs/btrfs/transaction.c:2473
 btrfs_sync_fs+0x129/0x7e0 fs/btrfs/super.c:1051
 sync_filesystem fs/sync.c:66 [inline]
 sync_filesystem+0x1d0/0x290 fs/sync.c:30
 generic_shutdown_super+0x86/0x360 fs/super.c:625
 kill_anon_super+0x3a/0x60 fs/super.c:1292
 btrfs_kill_super+0x3b/0x50 fs/btrfs/super.c:2127
 deactivate_locked_super+0xc1/0x1b0 fs/super.c:476
 deactivate_super fs/super.c:509 [inline]
 deactivate_super+0xe7/0x110 fs/super.c:505
 cleanup_mnt+0x21f/0x450 fs/namespace.c:1312
 task_work_run+0x150/0x240 kernel/task_work.c:233
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 __exit_to_user_mode_loop kernel/entry/common.c:67 [inline]
 exit_to_user_mode_loop+0x100/0x4a0 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline]
 do_syscall_64+0x67c/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f25ff39da57
Code: a2 c7 05 9c fc 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffca7e47738 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f25ff432048 RCX: 00007f25ff39da57
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffca7e477f0
RBP: 00007ffca7e477f0 R08: 00007ffca7e487f0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffca7e48880
R13: 00007f25ff432048 R14: 0000000000064a96 R15: 00007ffca7e488c0
 </TASK>
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	48 c7 c7 00 c3 03 8c 	mov    $0xffffffff8c03c300,%rdi
   9:	c6 05 07 e2 94 0c 01 	movb   $0x1,0xc94e207(%rip)        # 0xc94e217
  10:	e8 59 3a b7 fd       	call   0xfdb73a6e
  15:	e9 3b 0f 01 fd       	jmp    0xfd010f55
  1a:	e8 2f 7f db fd       	call   0xfddb7f4e
  1f:	48 8d 3d c8 6b b5 0c 	lea    0xcb56bc8(%rip),%rdi        # 0xcb56bee
  26:	8b 74 24 38          	mov    0x38(%rsp),%esi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	bb 01 00 00 00       	mov    $0x1,%ebx
  34:	e9 ad 15 01 fd       	jmp    0xfd0115e6
  39:	e8 10 7f db fd       	call   0xfddb7f4e
  3e:	48                   	rex.W
  3f:	8b                   	.byte 0x8b