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kernel BUG at fs/btrfs/extent-tree.c:3462!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 3 PID: 10265 Comm: syz-executor.3 Not tainted 6.8.0-rc6-syzkaller-00024-ge326df53af00 #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+0x845/0xb60 fs/btrfs/extent-tree.c:3462
Code: 02 00 00 48 8b 13 41 b8 01 00 00 00 4c 89 e7 48 89 ee e8 1e 80 fe ff 48 89 ef e8 76 4a 27 00 e9 74 fb ff ff e8 bc 7e 0d fe 90 <0f> 0b e8 b4 7e 0d fe 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1
RSP: 0018:ffffc900289bf360 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff888030a5ef00 RCX: ffffc90005632000
RDX: 0000000000040000 RSI: ffffffff837dcfb4 RDI: 0000000000000005
RBP: 000000000000000a R08: 0000000000000005 R09: 0000000000000000
R10: 00000000fffffff4 R11: 0000000000000007 R12: ffff88802f3095f8
R13: ffff888030a5ef08 R14: 00000000fffffff4 R15: 0000000000000001
FS:  00007fc58c48a6c0(0000) GS:ffff88806b500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555555ada788 CR3: 000000002ace8000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 btrfs_force_cow_block+0xfe7/0x19e0 fs/btrfs/ctree.c:626
 btrfs_cow_block+0x2b6/0xb30 fs/btrfs/ctree.c:749
 btrfs_search_slot+0x11bd/0x3010 fs/btrfs/ctree.c:2104
 btrfs_search_prev_slot.constprop.0+0x36/0x110 fs/btrfs/free-space-tree.c:140
 remove_free_space_extent fs/btrfs/free-space-tree.c:733 [inline]
 __remove_from_free_space_tree fs/btrfs/free-space-tree.c:828 [inline]
 remove_from_free_space_tree+0x52a/0xa80 fs/btrfs/free-space-tree.c:857
 alloc_reserved_extent+0x47/0x290 fs/btrfs/extent-tree.c:4778
 alloc_reserved_tree_block fs/btrfs/extent-tree.c:4941 [inline]
 run_delayed_tree_ref fs/btrfs/extent-tree.c:1766 [inline]
 run_one_delayed_ref fs/btrfs/extent-tree.c:1800 [inline]
 btrfs_run_delayed_refs_for_head fs/btrfs/extent-tree.c:2065 [inline]
 __btrfs_run_delayed_refs+0x1ba6/0x3f20 fs/btrfs/extent-tree.c:2135
 btrfs_run_delayed_refs+0x1a6/0x330 fs/btrfs/extent-tree.c:2247
 btrfs_commit_transaction+0x783/0x3b40 fs/btrfs/transaction.c:2201
 btrfs_sync_file+0xf9b/0x1310 fs/btrfs/file.c:2007
 vfs_fsync_range fs/sync.c:188 [inline]
 vfs_fsync fs/sync.c:202 [inline]
 do_fsync fs/sync.c:212 [inline]
 __do_sys_fdatasync fs/sync.c:225 [inline]
 __se_sys_fdatasync fs/sync.c:223 [inline]
 __x64_sys_fdatasync+0xd2/0x150 fs/sync.c:223
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd5/0x270 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7fc58b67dda9
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:00007fc58c48a0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000004b
RAX: ffffffffffffffda RBX: 00007fc58b7abf80 RCX: 00007fc58b67dda9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00007fc58c48a120 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 000000000000000b R14: 00007fc58b7abf80 R15: 00007ffc2f0b9b08
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:btrfs_free_tree_block+0x845/0xb60 fs/btrfs/extent-tree.c:3462
Code: 02 00 00 48 8b 13 41 b8 01 00 00 00 4c 89 e7 48 89 ee e8 1e 80 fe ff 48 89 ef e8 76 4a 27 00 e9 74 fb ff ff e8 bc 7e 0d fe 90 <0f> 0b e8 b4 7e 0d fe 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1
RSP: 0018:ffffc900289bf360 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff888030a5ef00 RCX: ffffc90005632000
RDX: 0000000000040000 RSI: ffffffff837dcfb4 RDI: 0000000000000005
RBP: 000000000000000a R08: 0000000000000005 R09: 0000000000000000
R10: 00000000fffffff4 R11: 0000000000000007 R12: ffff88802f3095f8
R13: ffff888030a5ef08 R14: 00000000fffffff4 R15: 0000000000000001
FS:  00007fc58c48a6c0(0000) GS:ffff88806b300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30729000 CR3: 000000002ace8000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400