RAX: ffffffffffffffda RBX: 00007f717f7abf80 RCX: 00007f717f68c0d9 RDX: 0000000000000020 RSI: 0000000020000180 RDI: 0000000000000004 RBP: 00007f71803f61d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffe71f28f2f R14: 00007f71803f6300 R15: 0000000000022000 ------------[ cut here ]------------ kernel BUG at fs/btrfs/extent-tree.c:3283! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 5774 Comm: syz-executor.0 Not tainted 6.3.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 RIP: 0010:btrfs_free_tree_block+0xafb/0xb00 Code: 89 f9 80 e1 07 38 c1 0f 8c b4 f9 ff ff 48 89 d3 be 08 00 00 00 4c 89 ff e8 82 d7 99 fe 48 89 da e9 9c f9 ff ff e8 e5 ef 63 06 <0f> 0b 0f 1f 00 55 41 57 41 56 41 55 41 54 53 48 83 ec 38 48 89 f5 RSP: 0018:ffffc9000513e940 EFLAGS: 00010282 RAX: 00000000fffffff4 RBX: 0000000000000005 RCX: f907582f5b6d2600 RDX: 0000000000000001 RSI: ffffffff8a19a1c0 RDI: ffffffff8a19a180 RBP: ffffc9000513ea98 R08: dffffc0000000000 R09: fffffbfff17bfe3b R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11004ca80a0 R13: ffffc9000513e9c0 R14: dffffc0000000000 R15: ffff888026540500 FS: 00007f71803f6700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000561eef426dc8 CR3: 0000000070e08000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: btrfs_del_leaf+0x23b/0x3b0 btrfs_del_items+0x99b/0xc40 btrfs_drop_extents+0x2201/0x3080 cow_file_range_inline+0x345/0x810 cow_file_range+0x2cf/0xd50 btrfs_run_delalloc_range+0x4c0/0xec0 writepage_delalloc+0x23e/0x4b0 __extent_writepage+0x79c/0xfc0 extent_writepages+0x97b/0x1380 do_writepages+0x33d/0x5c0 filemap_fdatawrite_wbc+0xe1/0x140 filemap_fdatawrite_range+0x176/0x200 btrfs_do_write_iter+0xc2a/0xeb0 vfs_write+0x7be/0xb10 ksys_write+0x122/0x200 do_syscall_64+0x41/0xc0 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f717f68c0d9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f71803f6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f717f7abf80 RCX: 00007f717f68c0d9 RDX: 0000000000000020 RSI: 0000000020000180 RDI: 0000000000000004 RBP: 00007f71803f61d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffe71f28f2f R14: 00007f71803f6300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:btrfs_free_tree_block+0xafb/0xb00 Code: 89 f9 80 e1 07 38 c1 0f 8c b4 f9 ff ff 48 89 d3 be 08 00 00 00 4c 89 ff e8 82 d7 99 fe 48 89 da e9 9c f9 ff ff e8 e5 ef 63 06 <0f> 0b 0f 1f 00 55 41 57 41 56 41 55 41 54 53 48 83 ec 38 48 89 f5 RSP: 0018:ffffc9000513e940 EFLAGS: 00010282 RAX: 00000000fffffff4 RBX: 0000000000000005 RCX: f907582f5b6d2600 RDX: 0000000000000001 RSI: ffffffff8a19a1c0 RDI: ffffffff8a19a180 RBP: ffffc9000513ea98 R08: dffffc0000000000 R09: fffffbfff17bfe3b R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11004ca80a0 R13: ffffc9000513e9c0 R14: dffffc0000000000 R15: ffff888026540500 FS: 00007f71803f6700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005635f6fb3680 CR3: 0000000070e08000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400