kernel BUG at fs/btrfs/extent-tree.c:3439!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 2 PID: 16706 Comm: syz-executor.1 Not tainted 6.7.0-rc4-syzkaller-00111-g5e3f5b81de80 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:btrfs_free_tree_block+0x7e4/0xbe0 fs/btrfs/extent-tree.c:3439
Code: fc fd 31 ff 89 c5 89 c6 e8 29 d7 13 fe 40 84 ed 0f 85 e6 fb ff ff e8 eb db 13 fe 90 0f 0b 90 e9 d8 fb ff ff e8 dd db 13 fe 90 <0f> 0b e8 d5 db 13 fe 49 8d 7c 24 30 48 b8 00 00 00 00 00 fc ff df
RSP: 0018:ffffc90006de7310 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff88802c7a29b8 RCX: ffffc90003e51000
RDX: 0000000000040000 RSI: ffffffff8372a483 RDI: 0000000000000005
RBP: 0000000000000005 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000fffffff4 R11: 000000000000000a R12: ffff888012ce7e60
R13: ffff88802c7a29c0 R14: 00000000fffffff4 R15: 0000000000000001
FS:  00007f97f38716c0(0000) GS:ffff88806b800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9e53779038 CR3: 000000010e710000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 btrfs_force_cow_block+0xfe3/0x19e0 fs/btrfs/ctree.c:618
 btrfs_cow_block+0x2b6/0xb30 fs/btrfs/ctree.c:741
 create_pending_snapshot+0xf8a/0x32d0 fs/btrfs/transaction.c:1828
 create_pending_snapshots+0x17e/0x2d0 fs/btrfs/transaction.c:1967
 btrfs_commit_transaction+0x1272/0x3b40 fs/btrfs/transaction.c:2440
 create_snapshot fs/btrfs/ioctl.c:845 [inline]
 btrfs_mksubvol+0xa87/0x12c0 fs/btrfs/ioctl.c:995
 btrfs_mksnapshot+0xad/0xf0 fs/btrfs/ioctl.c:1041
 __btrfs_ioctl_snap_create+0x43d/0x4f0 fs/btrfs/ioctl.c:1294
 btrfs_ioctl_snap_create+0x168/0x200 fs/btrfs/ioctl.c:1321
 btrfs_ioctl+0x52f/0x61e0 fs/btrfs/ioctl.c:4576
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:871 [inline]
 __se_sys_ioctl fs/ioctl.c:857 [inline]
 __x64_sys_ioctl+0x18f/0x210 fs/ioctl.c:857
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f97f2a7cba9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f97f38710c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f97f2b9bf80 RCX: 00007f97f2a7cba9
RDX: 00000000200000c0 RSI: 0000000050009401 RDI: 0000000000000005
RBP: 00007f97f3871120 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 000000000000000b R14: 00007f97f2b9bf80 R15: 00007ffd165b7658
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:btrfs_free_tree_block+0x7e4/0xbe0 fs/btrfs/extent-tree.c:3439
Code: fc fd 31 ff 89 c5 89 c6 e8 29 d7 13 fe 40 84 ed 0f 85 e6 fb ff ff e8 eb db 13 fe 90 0f 0b 90 e9 d8 fb ff ff e8 dd db 13 fe 90 <0f> 0b e8 d5 db 13 fe 49 8d 7c 24 30 48 b8 00 00 00 00 00 fc ff df
RSP: 0018:ffffc90006de7310 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff88802c7a29b8 RCX: ffffc90003e51000
RDX: 0000000000040000 RSI: ffffffff8372a483 RDI: 0000000000000005
RBP: 0000000000000005 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000fffffff4 R11: 000000000000000a R12: ffff888012ce7e60
R13: ffff88802c7a29c0 R14: 00000000fffffff4 R15: 0000000000000001
FS:  00007f97f38716c0(0000) GS:ffff88806b900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31126000 CR3: 000000010e710000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400