------------[ cut here ]------------
kernel BUG at fs/btrfs/relocation.c:1919!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 6106 Comm: syz-executor.5 Not tainted 6.5.0-rc3-syzkaller-00275-gffabf7c73176 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
RIP: 0010:prepare_to_merge+0xbb2/0xc40 fs/btrfs/relocation.c:1919
Code: fe e9 f5 f7 ff ff e8 8d 76 eb fd 48 c7 c7 60 73 4b 8b 48 c7 c6 00 83 4b 8b 48 c7 c2 e0 73 4b 8b b9 7f 07 00 00 e8 1e f1 19 07 <0f> 0b e8 c7 31 1c 07 f3 0f 1e fa e8 5e 76 eb fd 43 80 3c 2f 00 74
RSP: 0018:ffffc90016c77760 EFLAGS: 00010246
RAX: 000000000000004f RBX: ffff88807aab0030 RCX: 55221bf3f629df00
RDX: ffffc9000b1a1000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc90016c77870 R08: ffffffff816f6bcc R09: 1ffff11017305162
R10: dffffc0000000000 R11: ffffed1017305163 R12: ffff88807aab0000
R13: ffff88802169a000 R14: ffff88802169a560 R15: ffff88802169a558
FS:  00007fe1829466c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000001fc41000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 relocate_block_group+0xa5d/0xcd0 fs/btrfs/relocation.c:3749
 btrfs_relocate_block_group+0x7ab/0xd70 fs/btrfs/relocation.c:4087
 btrfs_relocate_chunk+0x12c/0x3b0 fs/btrfs/volumes.c:3283
 __btrfs_balance+0x1b06/0x2690 fs/btrfs/volumes.c:4018
 btrfs_balance+0xbd8/0x10d0 fs/btrfs/volumes.c:4395
 btrfs_ioctl_balance+0x496/0x7c0 fs/btrfs/ioctl.c:3604
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xf8/0x170 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fe181c7cb29
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:00007fe1829460c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fe181d9bf80 RCX: 00007fe181c7cb29
RDX: 00000000200003c0 RSI: 00000000c4009420 RDI: 0000000000000005
RBP: 00007fe181cc847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fe181d9bf80 R15: 00007ffec550b1c8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:prepare_to_merge+0xbb2/0xc40 fs/btrfs/relocation.c:1919
Code: fe e9 f5 f7 ff ff e8 8d 76 eb fd 48 c7 c7 60 73 4b 8b 48 c7 c6 00 83 4b 8b 48 c7 c2 e0 73 4b 8b b9 7f 07 00 00 e8 1e f1 19 07 <0f> 0b e8 c7 31 1c 07 f3 0f 1e fa e8 5e 76 eb fd 43 80 3c 2f 00 74
RSP: 0018:ffffc90016c77760 EFLAGS: 00010246
RAX: 000000000000004f RBX: ffff88807aab0030 RCX: 55221bf3f629df00
RDX: ffffc9000b1a1000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc90016c77870 R08: ffffffff816f6bcc R09: 1ffff11017305162
R10: dffffc0000000000 R11: ffffed1017305163 R12: ffff88807aab0000
R13: ffff88802169a000 R14: ffff88802169a560 R15: ffff88802169a558
FS:  00007fe1829466c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001740 CR3: 000000001fc41000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400