R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 000000000000000b R14: 00007f753279bf80 R15: 00007ffdcaa246f8 ------------[ cut here ]------------ kernel BUG at fs/btrfs/extent-tree.c:3460! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 494 Comm: syz-executor.1 Not tainted 6.7.0-rc7-syzkaller-00041-gf016f7547aee #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+0x7e4/0xbe0 fs/btrfs/extent-tree.c:3460 Code: fc fd 31 ff 89 c5 89 c6 e8 99 e1 13 fe 40 84 ed 0f 85 e6 fb ff ff e8 5b e6 13 fe 90 0f 0b 90 e9 d8 fb ff ff e8 4d e6 13 fe 90 <0f> 0b e8 45 e6 13 fe 49 8d 7c 24 30 48 b8 00 00 00 00 00 fc ff df RSP: 0018:ffffc90005c26dd8 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff88802383b588 RCX: ffffc900057bc000 RDX: 0000000000040000 RSI: ffffffff83727e33 RDI: 0000000000000005 RBP: 000000000000000a R08: 0000000000000005 R09: 0000000000000000 R10: 00000000fffffff4 R11: 0000000000000009 R12: ffff888057897378 R13: ffff88802383b590 R14: 00000000fffffff4 R15: 0000000000000001 FS: 00007f753335d6c0(0000) GS:ffff88806b700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30b2c000 CR3: 000000010ed91000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: btrfs_force_cow_block+0xfe3/0x19e0 fs/btrfs/ctree.c:618 btrfs_cow_block+0x2b6/0xb30 fs/btrfs/ctree.c:741 btrfs_search_slot+0x11bd/0x2fd0 fs/btrfs/ctree.c:2095 btrfs_search_prev_slot.constprop.0+0x36/0x100 fs/btrfs/free-space-tree.c:140 add_free_space_extent fs/btrfs/free-space-tree.c:910 [inline] __add_to_free_space_tree+0x36a/0xbf0 fs/btrfs/free-space-tree.c:1021 add_to_free_space_tree+0x179/0x330 fs/btrfs/free-space-tree.c:1050 do_free_extent_accounting fs/btrfs/extent-tree.c:3009 [inline] __btrfs_free_extent.isra.0+0x1133/0x2f70 fs/btrfs/extent-tree.c:3379 run_delayed_data_ref fs/btrfs/extent-tree.c:1613 [inline] run_one_delayed_ref fs/btrfs/extent-tree.c:1803 [inline] btrfs_run_delayed_refs_for_head fs/btrfs/extent-tree.c:2064 [inline] __btrfs_run_delayed_refs+0x1161/0x3f20 fs/btrfs/extent-tree.c:2134 btrfs_run_delayed_refs+0x1a6/0x330 fs/btrfs/extent-tree.c:2246 btrfs_commit_transaction+0x783/0x3b40 fs/btrfs/transaction.c:2235 btrfs_sync_file+0xfa9/0x1320 fs/btrfs/file.c:2004 btrfs_remap_file_range+0xa8c/0xfb0 fs/btrfs/reflink.c:927 do_clone_file_range+0x2b3/0x860 fs/remap_range.c:396 vfs_clone_file_range+0xbe/0x5b0 fs/remap_range.c:414 ioctl_file_clone fs/ioctl.c:240 [inline] ioctl_file_clone_range fs/ioctl.c:259 [inline] do_vfs_ioctl+0x93d/0x1920 fs/ioctl.c:824 __do_sys_ioctl fs/ioctl.c:869 [inline] __se_sys_ioctl fs/ioctl.c:857 [inline] __x64_sys_ioctl+0x112/0x210 fs/ioctl.c:857 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f753267cce9 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:00007f753335d0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f753279bf80 RCX: 00007f753267cce9 RDX: 0000000020000000 RSI: 000000004020940d RDI: 0000000000000005 RBP: 00007f753335d120 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 000000000000000b R14: 00007f753279bf80 R15: 00007ffdcaa246f8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:btrfs_free_tree_block+0x7e4/0xbe0 fs/btrfs/extent-tree.c:3460 Code: fc fd 31 ff 89 c5 89 c6 e8 99 e1 13 fe 40 84 ed 0f 85 e6 fb ff ff e8 5b e6 13 fe 90 0f 0b 90 e9 d8 fb ff ff e8 4d e6 13 fe 90 <0f> 0b e8 45 e6 13 fe 49 8d 7c 24 30 48 b8 00 00 00 00 00 fc ff df RSP: 0018:ffffc90005c26dd8 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff88802383b588 RCX: ffffc900057bc000 RDX: 0000000000040000 RSI: ffffffff83727e33 RDI: 0000000000000005 RBP: 000000000000000a R08: 0000000000000005 R09: 0000000000000000 R10: 00000000fffffff4 R11: 0000000000000009 R12: ffff888057897378 R13: ffff88802383b590 R14: 00000000fffffff4 R15: 0000000000000001 FS: 00007f753335d6c0(0000) GS:ffff88806b600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff71a7eff8 CR3: 000000010ed91000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400