RDX: 00007f344d23cae0 RSI: 00000000200001c0 RDI: 00007f344d23cb00
RBP: 000000000078bf00 R08: 00007f344d23cb40 R09: 00007f344d23cae0
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000005
R13: 0000000000000be5 R14: 00000000004ce238 R15: 00007f344d23d6d4
------------[ cut here ]------------
kernel BUG at fs/btrfs/volumes.c:890!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 25895 Comm: syz-executor.1 Not tainted 4.14.181-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8880519680c0 task.stack: ffff888048c20000
RIP: 0010:btrfs_prepare_close_one_device fs/btrfs/volumes.c:890 [inline]
RIP: 0010:__btrfs_close_devices+0x793/0xa30 fs/btrfs/volumes.c:915
RSP: 0018:ffff888048c27748 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff8880a4662900 RCX: ffffc9000cb4a000
RDX: 0000000000040000 RSI: ffffffff828d88c3 RDI: 0000000000000282
RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a88900c0
R13: ffff8880a46629c8 R14: fffffffffffffff4 R15: ffff8880a4662900
FS:  00007f344d23d700(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000078c000 CR3: 00000000954e4000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 btrfs_close_devices+0x24/0x140 fs/btrfs/volumes.c:948
 btrfs_mount+0x1cfe/0x2838 fs/btrfs/super.c:1642
 mount_fs+0x92/0x2a0 fs/super.c:1237
 vfs_kern_mount.part.0+0x5b/0x3c0 fs/namespace.c:1046
 vfs_kern_mount+0x3c/0x60 fs/namespace.c:1036
 mount_subvol fs/btrfs/super.c:1392 [inline]
 btrfs_mount+0x2a0/0x2838 fs/btrfs/super.c:1563
 mount_fs+0x92/0x2a0 fs/super.c:1237
 vfs_kern_mount.part.0+0x5b/0x3c0 fs/namespace.c:1046
 vfs_kern_mount fs/namespace.c:1036 [inline]
 do_new_mount fs/namespace.c:2549 [inline]
 do_mount+0x3c9/0x25e0 fs/namespace.c:2879
 SYSC_mount fs/namespace.c:3095 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3072
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x45f47a
RSP: 002b:00007f344d23ca68 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000508780 RCX: 000000000045f47a
RDX: 00007f344d23cae0 RSI: 00000000200001c0 RDI: 00007f344d23cb00
RBP: 000000000078bf00 R08: 00007f344d23cb40 R09: 00007f344d23cae0
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000005
R13: 0000000000000be5 R14: 00000000004ce238 R15: 00007f344d23d6d4
Code: c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e 46 02 00 00 48 8b 04 24 c7 80 10 01 00 00 00 00 00 00 e9 2b f9 ff ff e8 ad 18 cd fe <0f> 0b e8 a6 18 cd fe 0f 0b 48 89 cf e8 8c 5a f6 fe e9 f5 f8 ff 
RIP: btrfs_prepare_close_one_device fs/btrfs/volumes.c:890 [inline] RSP: ffff888048c27748
RIP: __btrfs_close_devices+0x793/0xa30 fs/btrfs/volumes.c:915 RSP: ffff888048c27748
---[ end trace 1365a6b3e6cb30ed ]---
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'.