------------[ cut here ]------------ WARNING: CPU: 0 PID: 178 at net/ceph/messenger_v2.c:3168 populate_in_iter net/ceph/messenger_v2.c:3168 [inline] WARNING: CPU: 0 PID: 178 at net/ceph/messenger_v2.c:3168 ceph_con_v2_try_read+0x7d1d/0x7ea0 net/ceph/messenger_v2.c:3198 Modules linked in: CPU: 0 PID: 178 Comm: kworker/0:2 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:populate_in_iter net/ceph/messenger_v2.c:3168 [inline] RIP: 0010:ceph_con_v2_try_read+0x7d1d/0x7ea0 net/ceph/messenger_v2.c:3198 Code: 41 5c 41 5d 41 5e 41 5f 5d c3 e8 9e 12 3a f7 48 c7 c7 40 23 e6 8b 44 89 f6 e8 9f e2 03 f7 0f 0b e9 57 ff ff ff e8 83 12 3a f7 <0f> 0b 41 bd c3 ff ff ff e9 4b ff ff ff e8 71 12 3a f7 0f 0b 41 bd RSP: 0018:ffffc90002e97560 EFLAGS: 00010293 RAX: ffffffff8a4d5c9d RBX: ffff8880241186c8 RCX: ffff88801b3b3c00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90002e97b38 R08: 0000000000000004 R09: 0000000000000004 R10: ffff8880241186b4 R11: ffffed10048230d8 R12: fffff520005d2efc R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5f235eb700 CR3: 0000000073623000 CR4: 00000000003506f0 Call Trace: ceph_con_workfn+0x1f1/0x1250 net/ceph/messenger.c:1574 process_one_work kernel/workqueue.c:2653 [inline] process_scheduled_works+0xa60/0x1600 kernel/workqueue.c:2730 worker_thread+0xa5e/0xfe0 kernel/workqueue.c:2811 kthread+0x2fa/0x390 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293