el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
------------[ cut here ]------------
kernel BUG at fs/btrfs/extent-tree.c:3295!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4531 Comm: syz-executor.1 Not tainted 5.15.178-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : btrfs_free_tree_block+0xc08/0xdcc fs/btrfs/extent-tree.c:3295
lr : btrfs_free_tree_block+0xc08/0xdcc fs/btrfs/extent-tree.c:3295
sp : ffff8000204e6a60
x29: ffff8000204e6b80 x28: ffff0000de86c2c0 x27: ffff8000204e6af0
x26: 00000000fffffff4 x25: 0000000000000001 x24: ffff0000db865860
x23: 0000000000000005 x22: ffff0000de86c2c0 x21: ffff0000db865740
x20: 0000000000000001 x19: dfff800000000000 x18: 0000000000000001
x17: 0000000000000000 x16: ffff800011b4e3fc x15: 00000000ffffffff
x14: ffff0000cdb89b40 x13: 0000000000000001 x12: 0000000000000001
x11: 0000000000000000 x10: 0000000000000000 x9 : ffff0000cdb89b40
x8 : ffff80000a075714 x7 : 0000000000000000 x6 : 0000000000000001
x5 : ffff8000204e5db8 x4 : 00000000000000a8 x3 : 0000000000000068
x2 : 0000000000000000 x1 : 00000000fffffff4 x0 : 0000000000000000
Call trace:
 btrfs_free_tree_block+0xc08/0xdcc fs/btrfs/extent-tree.c:3295
 btrfs_force_cow_block+0xc88/0x19b8 fs/btrfs/ctree.c:480
 btrfs_cow_block+0x308/0x6a0 fs/btrfs/ctree.c:598
 btrfs_search_slot+0xb50/0x24f8
 btrfs_insert_empty_items+0x1e4/0x2ac fs/btrfs/ctree.c:4012
 btrfs_insert_empty_item fs/btrfs/ctree.h:2957 [inline]
 btrfs_insert_replace_extent+0x2fc/0xc04 fs/btrfs/file.c:2699
 btrfs_replace_file_extents+0xb3c/0x1388 fs/btrfs/file.c:2981
 btrfs_clone+0xe28/0x2318 fs/btrfs/reflink.c:492
 btrfs_clone_files+0x278/0x31c fs/btrfs/reflink.c:740
 btrfs_remap_file_range+0x4c8/0xc08 fs/btrfs/reflink.c:888
 vfs_copy_file_range+0xad4/0x1138 fs/read_write.c:1510
 __do_sys_copy_file_range fs/read_write.c:1588 [inline]
 __se_sys_copy_file_range fs/read_write.c:1551 [inline]
 __arm64_sys_copy_file_range+0x5f8/0x9d8 fs/read_write.c:1551
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: c80a7e69 35ffffaa 17ffff2b 97913b66 (d4210000) 
---[ end trace eca2edd150019ee3 ]---