rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10499 ticks this GP) idle=5564/1/0x4000000000000000 softirq=138790/138790 fqs=5219
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:     5283          0            0
rcu: 	cputime:      193          0        52296   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=77949 q=3799 ncpus=2)
CPU: 1 UID: 0 PID: 24007 Comm: syz.1.5013 Not tainted 6.16.0-rc5-syzkaller-00212-g9f735b6f8a77-dirty #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:qdisc_lookup_rcu+0xd2/0x6d0
Code: 43 ab f8 4d 8b 24 24 4c 89 e0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 e7 e8 8b 43 ab f8 4d 8b 2c 24 4d 85 ed 0f 84 83 00 00 00 <4d> 8d 66 10 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f
RSP: 0018:ffffc90007496f90 EFLAGS: 00000286
RAX: 1ffff11005211a80 RBX: 00000000ffff0000 RCX: ffff88811f3f9cc0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffff88811f3f9cc0 R09: 0000000000000002
R10: 00000000ffffffff R11: 0000000000000000 R12: ffff88802908d400
R13: ffff88802a80e000 R14: ffff88803b94c800 R15: ffff88802a80e000
FS:  00007f74b6aa56c0(0000) GS:ffff8881a3c26000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f74b6a83fc8 CR3: 000000012de6c000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 qdisc_tree_reduce_backlog+0x1b2/0x480
 codel_change+0x859/0xae0
 codel_init+0x1f7/0x3e0
 qdisc_create+0x7ac/0xea0
 tc_modify_qdisc+0x1538/0x20e0
 rtnetlink_rcv_msg+0x77c/0xb70
 netlink_rcv_skb+0x208/0x470
 netlink_unicast+0x75c/0x8e0
 netlink_sendmsg+0x805/0xb30
 __sock_sendmsg+0x21c/0x270
 ____sys_sendmsg+0x52d/0x830
 ___sys_sendmsg+0x21f/0x2a0
 __sys_sendmmsg+0x227/0x430
 __x64_sys_sendmmsg+0xa0/0xc0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f74b5b8e929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f74b6aa5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f74b5db6080 RCX: 00007f74b5b8e929
RDX: 040000000000009f RSI: 00002000000002c0 RDI: 0000000000000007
RBP: 00007f74b5c10ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f74b5db6080 R15: 00007ffecb75d5d8
 </TASK>
