RDX: 00007f77887dfae0 RSI: 00000000200001c0 RDI: 00007f77887dfb00
RBP: 000000000078bf00 R08: 00007f77887dfb40 R09: 00007f77887dfae0
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000003
R13: 0000000000000be5 R14: 00000000004ce278 R15: 00007f77887e06d4
------------[ cut here ]------------
kernel BUG at fs/btrfs/volumes.c:895!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 4329 Comm: syz-executor.3 Not tainted 4.14.182-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88804f276640 task.stack: ffff888044af0000
RIP: 0010:btrfs_prepare_close_one_device fs/btrfs/volumes.c:895 [inline]
RIP: 0010:__btrfs_close_devices+0x79a/0xa30 fs/btrfs/volumes.c:915
RSP: 0018:ffff888044af7748 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff888097bd96c0 RCX: ffffc90008137000
RDX: 0000000000040000 RSI: ffffffff828d8e1a RDI: 0000000000000282
RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808db85690
R13: 0000000000000000 R14: ffff88808faf7b00 R15: ffff888097bd96c0
FS:  00007f77887e0700(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffe5e60c48 CR3: 000000008b4d0000 CR4: 00000000001426f0
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
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'.
 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: 0033:0x45f4ba
RSP: 002b:00007f77887dfa68 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00000000005087c0 RCX: 000000000045f4ba
RDX: 00007f77887dfae0 RSI: 00000000200001c0 RDI: 00007f77887dfb00
RBP: 000000000078bf00 R08: 00007f77887dfb40 R09: 00007f77887dfae0
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000003
R13: 0000000000000be5 R14: 00000000004ce278 R15: 00007f77887e06d4
Code: 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 5d 17 cd fe 0f 0b e8 56 17 cd fe <0f> 0b 48 89 cf e8 6c 5a f6 fe e9 f5 f8 ff ff e8 42 17 cd fe 0f 
RIP: btrfs_prepare_close_one_device fs/btrfs/volumes.c:895 [inline] RSP: ffff888044af7748
RIP: __btrfs_close_devices+0x79a/0xa30 fs/btrfs/volumes.c:915 RSP: ffff888044af7748
---[ end trace 3327228c42093cb1 ]---