------------[ cut here ]------------
con->v1.connect_seq != le32_to_cpu(con->v1.in_reply.connect_seq)
WARNING: net/ceph/messenger_v1.c:901 at process_connect net/ceph/messenger_v1.c:901 [inline], CPU#1: kworker/1:3/5825
WARNING: net/ceph/messenger_v1.c:901 at ceph_con_v1_try_read+0x447d/0x6ca0 net/ceph/messenger_v1.c:1366, CPU#1: kworker/1:3/5825
Modules linked in:
CPU: 1 UID: 0 PID: 5825 Comm: kworker/1:3 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Workqueue: ceph-msgr ceph_con_workfn
RIP: 0010:process_connect net/ceph/messenger_v1.c:901 [inline]
RIP: 0010:ceph_con_v1_try_read+0x447d/0x6ca0 net/ceph/messenger_v1.c:1366
Code: f6 84 db 0f 84 1b ee ff ff e9 42 20 f3 f5 e8 8a 47 89 f6 90 0f 0b 90 e9 9f db ff ff e8 7c 47 89 f6 90 0f 0b e8 74 47 89 f6 90 <0f> 0b 90 e9 84 e5 ff ff e8 66 47 89 f6 90 0f 0b e8 5e 47 89 f6 90
RSP: 0018:ffffc90003447a08 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888028bfc88b RCX: ffffffff8b811190
RDX: ffff888024924a80 RSI: ffffffff8b812c0c RDI: ffff888024924a80
RBP: 00000000ffffffff R08: 0000000000000004 R09: 00000000ffffffff
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001
R13: ffff888028bfc950 R14: ffff888028bfc418 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880d5cde000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f06b76fdff8 CR3: 0000000055638000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 ceph_con_workfn+0x9a5/0x13e0 net/ceph/messenger.c:1577
 process_one_work+0xa23/0x1940 kernel/workqueue.c:3322
 process_scheduled_works kernel/workqueue.c:3405 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>