------------[ cut here ]------------
server->in_flight == 0
WARNING: fs/smb/client/smb2ops.c:104 at smb2_add_credits+0x1249/0x2b70, CPU#1: syz.2.83/5999
Modules linked in:
CPU: 1 UID: 0 PID: 5999 Comm: syz.2.83 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 36 5a bd fe f6 c3 01 75 0a e8 2c 55 bd fe e9 22 13 00 00 0f 1f 44 00 00 e8 1d 55 bd fe e9 13 13 00 00 90 <0f> 0b 90 80 3d bc 93 37 0d 01 0f 85 9e 03 00 00 e8 02 55 bd fe 49
RSP: 0018:ffffc9000772f198 EFLAGS: 00010246
RAX: ffffffff8309a1c8 RBX: 1ffff1100403f061 RCX: ffff888169a85a00
RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000002000 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: ffffffff8309cf20 R12: ffff8880201f8308
R13: ffffc9000772f3b0 R14: ffff8880201f8000 R15: 0000000000000000
FS:  00007f01bb0af6c0(0000) GS:ffff8882a8f39000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3280bff8 CR3: 00000001be16c000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 compound_send_recv+0x13b4/0x2b90
 cifs_send_recv+0x42/0x60
 SMB2_sess_sendreceive+0x22f/0x780
 SMB2_sess_auth_rawntlmssp_negotiate+0x308/0xaf0
 SMB2_sess_setup+0x475/0x8b0
 cifs_setup_session+0x86b/0x1130
 cifs_get_smb_ses+0x114d/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: 0033:0x7f01ba19e159
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:00007f01bb0af028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f01ba425fa0 RCX: 00007f01ba19e159
RDX: 0000200000000200 RSI: 0000200000000100 RDI: 0000200000000500
RBP: 00007f01ba23506b R08: 0000200000000300 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f01ba426038 R14: 00007f01ba425fa0 R15: 00007ffc15c16278
 </TASK>
