Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 18 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:00007ffcc5e96ae8 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 RAX: ffffffffffffffda RBX: 00007ffcc5e96b20 RCX: 00007fbb1142c2e9 RDX: 0000000000000001 RSI: 00000000200026c0 RDI: 0000000000000004 RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcc5e96b1c R13: 0000000000000031 R14: 431bde82d7b634db R15: 00007ffcc5e96b60 ------------[ cut here ]------------ kernel BUG at fs/btrfs/extent-tree.c:3439! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 5904 Comm: syz-executor333 Not tainted 6.7.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 RIP: 0010:btrfs_free_tree_block+0xd83/0xd90 fs/btrfs/extent-tree.c:3439 Code: 89 f1 80 e1 07 38 c1 0f 8c 61 f8 ff ff be 08 00 00 00 4c 89 f7 e8 3d 2b 5b fe e9 4f f8 ff ff e8 b3 de 87 07 e8 6e 22 ff fd 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 90 55 41 57 41 56 41 55 41 54 RSP: 0018:ffffc9000b116600 EFLAGS: 00010293 RAX: ffffffff838f57d2 RBX: 00000000fffffff4 RCX: ffff888016375940 RDX: 0000000000000000 RSI: 00000000fffffff4 RDI: 0000000000000000 RBP: ffffc9000b116770 R08: ffffffff838f4e0f R09: 1ffffffff21bae86 R10: dffffc0000000000 R11: fffffbfff21bae87 R12: ffff000000000100 R13: dffffc0000000000 R14: 0000000000000002 R15: ffffc9000b1166a0 FS: 00005555562e7380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbb114a90f8 CR3: 00000000288e1000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: btrfs_force_cow_block+0xf37/0x1b70 fs/btrfs/ctree.c:618 btrfs_cow_block+0x35e/0xa20 fs/btrfs/ctree.c:741 btrfs_search_slot+0xbdd/0x30c0 fs/btrfs/ctree.c:2095 lookup_inline_extent_backref+0x409/0x1650 fs/btrfs/extent-tree.c:830 lookup_extent_backref fs/btrfs/extent-tree.c:1062 [inline] __btrfs_free_extent+0x2fb/0x38e0 fs/btrfs/extent-tree.c:3114 run_delayed_tree_ref fs/btrfs/extent-tree.c:1759 [inline] run_one_delayed_ref fs/btrfs/extent-tree.c:1784 [inline] btrfs_run_delayed_refs_for_head fs/btrfs/extent-tree.c:2042 [inline] __btrfs_run_delayed_refs+0x13c8/0x44d0 fs/btrfs/extent-tree.c:2112 btrfs_run_delayed_refs+0xe3/0x2c0 fs/btrfs/extent-tree.c:2224 btrfs_commit_transaction+0x4ba/0x3740 fs/btrfs/transaction.c:2237 btrfs_sync_file+0xf50/0x1330 fs/btrfs/file.c:2004 generic_write_sync include/linux/fs.h:2653 [inline] btrfs_do_write_iter+0xbc5/0x1190 fs/btrfs/file.c:1694 do_iter_readv_writev+0x330/0x4a0 do_iter_write+0x1f6/0x8d0 fs/read_write.c:860 vfs_writev fs/read_write.c:933 [inline] do_pwritev+0x21a/0x360 fs/read_write.c:1030 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x45/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7fbb1142c2e9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 18 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:00007ffcc5e96ae8 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 RAX: ffffffffffffffda RBX: 00007ffcc5e96b20 RCX: 00007fbb1142c2e9 RDX: 0000000000000001 RSI: 00000000200026c0 RDI: 0000000000000004 RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcc5e96b1c R13: 0000000000000031 R14: 431bde82d7b634db R15: 00007ffcc5e96b60 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:btrfs_free_tree_block+0xd83/0xd90 fs/btrfs/extent-tree.c:3439 Code: 89 f1 80 e1 07 38 c1 0f 8c 61 f8 ff ff be 08 00 00 00 4c 89 f7 e8 3d 2b 5b fe e9 4f f8 ff ff e8 b3 de 87 07 e8 6e 22 ff fd 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 90 55 41 57 41 56 41 55 41 54 RSP: 0018:ffffc9000b116600 EFLAGS: 00010293 RAX: ffffffff838f57d2 RBX: 00000000fffffff4 RCX: ffff888016375940 RDX: 0000000000000000 RSI: 00000000fffffff4 RDI: 0000000000000000 RBP: ffffc9000b116770 R08: ffffffff838f4e0f R09: 1ffffffff21bae86 R10: dffffc0000000000 R11: fffffbfff21bae87 R12: ffff000000000100 R13: dffffc0000000000 R14: 0000000000000002 R15: ffffc9000b1166a0 FS: 00005555562e7380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbb114a90f8 CR3: 00000000288e1000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 28 00 sub %al,(%rax) 2: 00 00 add %al,(%rax) 4: 75 05 jne 0xb 6: 48 83 c4 28 add $0x28,%rsp a: c3 ret b: e8 21 18 00 00 call 0x1831 10: 90 nop 11: 48 89 f8 mov %rdi,%rax 14: 48 89 f7 mov %rsi,%rdi 17: 48 89 d6 mov %rdx,%rsi 1a: 48 89 ca mov %rcx,%rdx 1d: 4d 89 c2 mov %r8,%r10 20: 4d 89 c8 mov %r9,%r8 23: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9 28: 0f 05 syscall * 2a: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 73 01 jae 0x33 32: c3 ret 33: 48 c7 c1 b8 ff ff ff mov $0xffffffffffffffb8,%rcx 3a: f7 d8 neg %eax 3c: 64 89 01 mov %eax,%fs:(%rcx) 3f: 48 rex.W