9pnet_virtio: no channels available for device (null)
binder: 18303:18305 transaction failed 29189/-22, size -7308233941235306644-2238188199200895400 line 3013
kasan: CONFIG_KASAN_INLINE enabled
binder: 18320:18323 transaction failed 29189/-22, size -7308233941235306644-2238188199200895400 line 3013
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 18322 Comm: syz-executor1 Not tainted 4.9.124-g09eb2ba #31
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801d9b89800 task.stack: ffff8801a00b0000
RIP: 0010:[<ffffffff81ee10ef>]  [<ffffffff81ee10ef>] vsscanf+0x33f/0x2430 lib/vsprintf.c:2680
RSP: 0018:ffff8801a00b74e8  EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffffff841a40a1 RCX: ffffc90000b06000
RDX: 0000000000000000 RSI: ffffffff81ee10e2 RDI: ffffffff841a40a0
RBP: ffff8801a00b7698 R08: ffff8801a00b7860 R09: ffff8801a00b7864
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff841a40a1
R13: 0000000000000064 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007fed73428700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc7df35c518 CR3: 000000019d673000 CR4: 00000000001606f0
Stack:
 ffff8801d9b89800 fffffbfff07c47d1 1ffff10034016ea6 0000000000000000
 00000000000002ff 00000000a00b7530 ffffffff8123ffff ffff8801a00b76c8
 ffffffff841a4064 0000000041b58ab3 ffffffff843e47f0 ffffffff81ee0db0
Call Trace:
 [<ffffffff81ee328b>] sscanf+0xab/0xe0 lib/vsprintf.c:2885
 [<ffffffff839cd657>] valid_ipaddr4 net/9p/trans_fd.c:900 [inline]
 [<ffffffff839cd657>] p9_fd_create_tcp+0x127/0x430 net/9p/trans_fd.c:940
 [<ffffffff839bbf2f>] p9_client_create+0x6ff/0x10a0 net/9p/client.c:1036
 [<ffffffff819603a3>] v9fs_session_init+0x333/0x13a0 fs/9p/v9fs.c:343
 [<ffffffff81951c9d>] v9fs_mount+0x7d/0x810 fs/9p/vfs_super.c:130
 [<ffffffff81582a3c>] mount_fs+0x28c/0x370 fs/super.c:1206
 [<ffffffff815e2321>] vfs_kern_mount.part.29+0xd1/0x3d0 fs/namespace.c:1000
 [<ffffffff815e9b49>] vfs_kern_mount fs/namespace.c:982 [inline]
 [<ffffffff815e9b49>] do_new_mount fs/namespace.c:2537 [inline]
 [<ffffffff815e9b49>] do_mount+0x3c9/0x2740 fs/namespace.c:2859
 [<ffffffff815ec89e>] SYSC_mount fs/namespace.c:3075 [inline]
 [<ffffffff815ec89e>] SyS_mount+0xfe/0x110 fs/namespace.c:3052
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff83a019d3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Code: ff 45 84 ed 0f 84 c9 fe ff ff e8 1d fc 47 ff 41 80 fd 6e 0f 84 34 02 00 00 e8 0e fc 47 ff 4c 89 f8 4c 89 fa 48 c1 e8 03 83 e2 07 <42> 0f b6 04 30 38 d0 7f 08 84 c0 0f 85 dd 17 00 00 41 80 3f 00 
RIP  [<ffffffff81ee10ef>] vsscanf+0x33f/0x2430 lib/vsprintf.c:2680
 RSP <ffff8801a00b74e8>
---[ end trace 949d32b51442d20d ]---