------------[ cut here ]------------ kernel BUG at fs/btrfs/extent-tree.c:3452! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 7953 Comm: syz.1.267 Not tainted 6.10.0-rc6-syzkaller-g8a03d70c27fc #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_free_tree_block+0xbf4/0xc00 fs/btrfs/extent-tree.c:3452 lr : btrfs_free_tree_block+0xbf4/0xc00 fs/btrfs/extent-tree.c:3452 sp : ffff800098a974e0 x29: ffff800098a975e0 x28: ffff700013152ea4 x27: ffff0000f5300000 x26: ffff0000f80552c0 x25: ffff0000f5300064 x24: 00000000fffffff4 x23: 0000000000000001 x22: 0000000000000009 x21: ffff80008eb3def8 x20: ffff0000db979cb8 x19: dfff800000000000 x18: 0000000000000008 x17: 0000000000000000 x16: ffff800082fcbd70 x15: 0000000000000001 x14: 1ffff00011e90636 x13: 0000000000000000 x12: 0000000000000000 x11: ffff700011e90637 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000c42d8000 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800098a96798 x4 : 00000000ffffffff x3 : 0000000000000c40 x2 : ffff0000c581d000 x1 : 00000000fffffff4 x0 : 0000000000000000 Call trace: btrfs_free_tree_block+0xbf4/0xc00 fs/btrfs/extent-tree.c:3452 btrfs_force_cow_block+0xea8/0x1a58 fs/btrfs/ctree.c:623 btrfs_cow_block+0x318/0xa28 fs/btrfs/ctree.c:746 btrfs_search_slot+0xba0/0x2a08 btrfs_uuid_tree_remove+0x1a4/0x530 fs/btrfs/uuid-tree.c:177 _btrfs_ioctl_set_received_subvol+0x5b8/0xda0 fs/btrfs/ioctl.c:4079 btrfs_ioctl_set_received_subvol+0x84/0x1d4 fs/btrfs/ioctl.c:4180 btrfs_ioctl+0x8a8/0xaec fs/btrfs/ioctl.c:4748 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:893 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:131 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:150 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 Code: 5281aee3 9575a0ff d4210000 978e59f2 (d4210000) ---[ end trace 0000000000000000 ]---