rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (1 GPs behind) idle=69a4/1/0x4000000000000000 softirq=51270/51281 fqs=5186
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:     5256          0            0
rcu: 	cputime:      197          0        52291   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=37053 q=2514 ncpus=2)
CPU: 1 UID: 0 PID: 12705 Comm: syz.0.1827 Not tainted 6.16.0-syzkaller-06620-gae633388cae3 #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+0x14b/0x190
Code: 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 5d c3 cc cc cc cc cc 90 0f 0b 90 48 c7 c7 a2 92 97 8d e8 2c
RSP: 0018:ffffc90007b36f18 EFLAGS: 00000282
RAX: 0000000000000001 RBX: 00000000ffff0000 RCX: 607706fe68ce3700
RDX: ffff88811c0c9cc0 RSI: ffffffff8db6604c RDI: ffffffff8be30a00
RBP: 00000000ffffffff R08: ffff88811c0c9cc0 R09: 0000000000000002
R10: 00000000ffffffff R11: 0000000000000000 R12: ffff8880309dd838
R13: dffffc0000000000 R14: ffff888120472400 R15: 0000000000000002
FS:  00007f2ecaf926c0(0000) GS:ffff8881a3c80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001200 CR3: 000000011be78000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 qdisc_lookup_rcu+0x32b/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+0x505/0x830
 ___sys_sendmsg+0x21f/0x2a0
 __x64_sys_sendmsg+0x19b/0x260
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2eca18ebe9
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:00007f2ecaf92038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f2eca3b5fa0 RCX: 00007f2eca18ebe9
RDX: 0000000000000040 RSI: 0000200000001200 RDI: 000000000000000d
RBP: 00007f2eca211e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2eca3b6038 R14: 00007f2eca3b5fa0 R15: 00007ffe0f0f0098
 </TASK>
