------------[ cut here ]------------
server->in_flight == 0
WARNING: fs/smb/client/smb2ops.c:104 at smb2_add_credits+0x1249/0x2b70, CPU#1: syz.1.132/6399
Modules linked in:
CPU: 1 UID: 0 PID: 6399 Comm: syz.1.132 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:smb2_add_credits+0x1249/0x2b70
Code: de 83 e6 01 31 ff e8 56 75 b8 fe f6 c3 01 75 0a e8 4c 70 b8 fe e9 22 13 00 00 0f 1f 44 00 00 e8 3d 70 b8 fe e9 13 13 00 00 90 <0f> 0b 90 80 3d 1a 69 54 0e 01 0f 85 9e 03 00 00 e8 22 70 b8 fe 49
RSP: 0018:ffffc90028467238 EFLAGS: 00010246
RAX: ffffffff830f3848 RBX: 1ffff110369b9861 RCX: ffff8881746ada00
RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000200 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: ffffffff830f65a0 R12: ffff8881b4dcc308
R13: ffffc90028467450 R14: ffff8881b4dcc000 R15: 0000000000000000
FS:  00007f7652dfc6c0(0000) GS:ffff8882a7cd4000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7e54a4e7ec CR3: 000000016ec5e000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 compound_send_recv+0x13b4/0x2b90
 cifs_send_recv+0x42/0x60
 SMB2_negotiate+0x164d/0x4030
 cifs_negotiate_protocol+0x45d/0x680
 cifs_get_smb_ses+0x1104/0x1ff0
 cifs_mount_get_session+0xf1/0x450
 dfs_mount_share+0x22e/0x990
 cifs_mount+0xcc/0xbf0
 cifs_smb3_do_mount+0x2d0/0x8a0
 smb3_get_tree+0x2dd/0x400
 vfs_get_tree+0x92/0x2a0
 do_new_mount+0x319/0xdc0
 __se_sys_mount+0x31d/0x420
 do_syscall_64+0x166/0x520
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7651f9e1d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7652dfc028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f7652225fa0 RCX: 00007f7651f9e1d9
RDX: 00002000000002c0 RSI: 0000200000000280 RDI: 0000200000000240
RBP: 00007f7652035888 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7652226038 R14: 00007f7652225fa0 R15: 00007ffe36bf67e8
 </TASK>
