rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (1 GPs behind) idle=041c/1/0x4000000000000000 softirq=282082/282089 fqs=5188
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:     7942          0            0
rcu: 	cputime:      290          0        52188   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=221129 q=11772 ncpus=2)
CPU: 1 UID: 0 PID: 25698 Comm: syz.2.13965 Not tainted 6.16.0-syzkaller-06574-gd9104cec3e8f-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:lock_is_held_type+0x137/0x190
Code: 01 75 44 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 75 4c 41 f7 c4 00 02 00 00 74 01 fb 65 48 8b 05 f9 32 2a 07 <48> 3b 44 24 08 75 43 89 d8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f
RSP: 0018:ffffc90007266de8 EFLAGS: 00000206
RAX: 6b8f934689d45a00 RBX: 0000000000000001 RCX: 6b8f934689d45a00
RDX: ffff888127903980 RSI: ffffffff8db65e93 RDI: ffffffff8be30a00
RBP: 00000000ffffffff R08: ffff888127903980 R09: 0000000000000002
R10: 00000000ffffffff R11: 0000000000000000 R12: 0000000000000246
R13: ffff888127903980 R14: ffffffff8e13c4e0 R15: 0000000000000002
FS:  00007f0bb43436c0(0000) GS:ffff8881a3c80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000124efa000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 qdisc_lookup_rcu+0x68/0x6d0
 qdisc_tree_reduce_backlog+0x1b2/0x480
 fq_change+0x1519/0x1f50
 fq_init+0x699/0x960
 qdisc_create+0x7ac/0xea0
 tc_modify_qdisc+0x1538/0x20e0
 rtnetlink_rcv_msg+0x77c/0xb70
 netlink_rcv_skb+0x208/0x470
 netlink_unicast+0x82f/0x9e0
 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: 0033:0x7f0bb358ebe9
Code: Unable to access opcode bytes at 0x7f0bb358ebbf.
RSP: 002b:00007f0bb4343038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f0bb37b5fa0 RCX: 00007f0bb358ebe9
RDX: 040000000000009f RSI: 00002000000002c0 RDI: 0000000000000045
RBP: 00007f0bb3611e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0bb37b6038 R14: 00007f0bb37b5fa0 R15: 00007fffa6f64ee8
 </TASK>
