vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:856 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 21108 at fs/btrfs/extent-tree.c:872 lookup_inline_extent_backref+0x8c1/0x13e0 Modules linked in: CPU: 0 PID: 21108 Comm: syz-executor.5 Not tainted 6.2.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:lookup_inline_extent_backref+0x8c1/0x13e0 fs/btrfs/extent-tree.c:872 Code: 98 00 00 00 0f 87 2e 0b 00 00 e8 3a 9d 04 fe 4c 8b 6c 24 28 eb 3d 83 7d 28 00 4c 8b 6c 24 28 0f 84 b0 04 00 00 e8 1f 9d 04 fe <0f> 0b 41 bc fb ff ff ff e9 f3 05 00 00 e8 0d 9d 04 fe e9 ca 05 00 RSP: 0018:ffffc90005b8ed80 EFLAGS: 00010293 RAX: ffffffff83873e51 RBX: 0000000000000000 RCX: ffff888026d93a80 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90005b8ef30 R08: ffffffff838739a0 R09: ffffed1006f23c08 R10: ffffed1006f23c08 R11: 1ffff11006f23c07 R12: dffffc0000000000 R13: ffff888023048c60 R14: ffffc90005b8eea0 R15: ffff88803791e000 FS: 00007f4601e47700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055c97fe6afb8 CR3: 0000000028684000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: insert_inline_extent_backref+0xcc/0x260 fs/btrfs/extent-tree.c:1159 __btrfs_inc_extent_ref+0x108/0x5d0 fs/btrfs/extent-tree.c:1462 run_delayed_tree_ref fs/btrfs/extent-tree.c:1679 [inline] run_one_delayed_ref fs/btrfs/extent-tree.c:1706 [inline] btrfs_run_delayed_refs_for_head+0xf2c/0x1e50 fs/btrfs/extent-tree.c:1950 __btrfs_run_delayed_refs+0x25f/0x490 fs/btrfs/extent-tree.c:2015 btrfs_run_delayed_refs+0x312/0x480 fs/btrfs/extent-tree.c:2146 qgroup_account_snapshot+0xce/0x330 fs/btrfs/transaction.c:1551 create_pending_snapshot+0x1153/0x25c0 fs/btrfs/transaction.c:1824 create_pending_snapshots+0x1a8/0x1e0 fs/btrfs/transaction.c:1894 btrfs_commit_transaction+0x12c1/0x3340 fs/btrfs/transaction.c:2351 create_snapshot+0x4aa/0x7e0 fs/btrfs/ioctl.c:844 btrfs_mksubvol+0x71e/0x880 fs/btrfs/ioctl.c:994 btrfs_mksnapshot+0xb5/0xf0 fs/btrfs/ioctl.c:1040 __btrfs_ioctl_snap_create+0x339/0x450 fs/btrfs/ioctl.c:1293 btrfs_ioctl_snap_create+0x121/0x180 fs/btrfs/ioctl.c:1320 btrfs_ioctl+0x15c/0xc10 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f460108c0a9 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:00007f4601e47168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f46011ac120 RCX: 00007f460108c0a9 RDX: 00000000200000c0 RSI: 0000000050009401 RDI: 0000000000000004 RBP: 00007f46010e7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcbbbf550f R14: 00007f4601e47300 R15: 0000000000022000