------------[ cut here ]------------
WARNING: CPU: 1 PID: 23 at include/linux/ceph/decode.h:238 ceph_decode_banner_addr include/linux/ceph/decode.h:238 [inline]
WARNING: CPU: 1 PID: 23 at include/linux/ceph/decode.h:238 read_partial_banner net/ceph/messenger_v1.c:642 [inline]
WARNING: CPU: 1 PID: 23 at include/linux/ceph/decode.h:238 ceph_con_v1_try_read+0x5ae6/0x6440 net/ceph/messenger_v1.c:1225
Modules linked in:
CPU: 1 PID: 23 Comm: kworker/1:1 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: ceph-msgr ceph_con_workfn
RIP: 0010:ceph_decode_banner_addr include/linux/ceph/decode.h:238 [inline]
RIP: 0010:read_partial_banner net/ceph/messenger_v1.c:642 [inline]
RIP: 0010:ceph_con_v1_try_read+0x5ae6/0x6440 net/ceph/messenger_v1.c:1225
Code: 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 c1 c7 30 f8 48 c7 03 60 da 3f 8b 41 bf ff ff ff ff e9 ac 02 00 00 e8 5a 99 eb f7 <0f> 0b e9 ca f5 ff ff e8 4e 99 eb f7 48 c7 c7 60 e6 3f 8b 44 89 fe
RSP: 0018:ffffc90000ddf240 EFLAGS: 00010293
RAX: ffffffff898d7646 RBX: dffffc0000000000 RCX: ffff888017a28000
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000002
RBP: ffffc90000ddfbb8 R08: ffffc90000ddf0df R09: ffffc90000ddf0d0
R10: dffffc0000000000 R11: fffff520001bbe1c R12: 0000000000000200
R13: fffff520001bbe84 R14: 0000000000000002 R15: ffff88807c314772
FS:  0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff14836a2f8 CR3: 0000000062339000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ceph_con_workfn+0x201/0x1110 net/ceph/messenger.c:1530
 process_one_work+0x867/0xff0 kernel/workqueue.c:2310
 worker_thread+0xad7/0x12a0 kernel/workqueue.c:2457
 kthread+0x42e/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>