rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (1 GPs behind) idle=9b3/1/0x4000000000000000 softirq=116419/116420 fqs=5248 
	(t=10502 jiffies g=223605 q=1219)
NMI backtrace for cpu 1
CPU: 1 PID: 11703 Comm: syz-executor.0 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:105
 nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
 rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:343
 print_cpu_stall kernel/rcu/tree_stall.h:627 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:711 [inline]
 rcu_pending kernel/rcu/tree.c:3878 [inline]
 rcu_sched_clock_irq.cold+0x9d/0x746 kernel/rcu/tree.c:2597
 update_process_times+0x16d/0x200 kernel/time/timer.c:1785
 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
 tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1421
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
 __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:166 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:200
Code: 48 89 ef 5d e9 c1 19 46 00 5d be 03 00 00 00 e9 a6 f1 62 02 66 0f 1f 44 00 00 48 8b be b0 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 <65> 8b 05 89 a9 8a 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b
RSP: 0018:ffffc90003a077b8 EFLAGS: 00000246
RAX: 0000000000040000 RBX: 0000000000000200 RCX: ffffc90003579000
RDX: 0000000000040000 RSI: ffffffff8167cc4f RDI: 0000000000000003
RBP: 000000000004d83a R08: 0000000000000000 R09: ffffffff8fd5babf
R10: ffffffff8167cc45 R11: 000000000003764c R12: 0000000000000000
R13: dffffc0000000000 R14: ffffffff8b9a2e88 R15: ffff88802e3b6f60
 __seqprop_raw_spinlock_sequence include/linux/seqlock.h:276 [inline]
 timekeeping_get_delta kernel/time/timekeeping.c:252 [inline]
 timekeeping_get_ns kernel/time/timekeeping.c:386 [inline]
 ktime_get_with_offset+0x1f5/0x500 kernel/time/timekeeping.c:872
 ktime_get_real include/linux/timekeeping.h:79 [inline]
 ccid3_hc_tx_send_packet+0x5f/0x870 net/dccp/ccids/ccid3.c:276
 ccid_hc_tx_send_packet net/dccp/ccid.h:167 [inline]
 dccp_write_xmit+0xa6/0x1d0 net/dccp/output.c:356
 dccp_sendmsg+0x922/0xc90 net/dccp/proto.c:794
 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:819
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:724
 ____sys_sendmsg+0x331/0x810 net/socket.c:2409
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463
 __sys_sendmmsg+0x195/0x470 net/socket.c:2549
 __do_sys_sendmmsg net/socket.c:2578 [inline]
 __se_sys_sendmmsg net/socket.c:2575 [inline]
 __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2575
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f0011b32ae9
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f000f0a8188 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f0011c45f60 RCX: 00007f0011b32ae9
RDX: 000000000000000a RSI: 0000000020009300 RDI: 0000000000000005
RBP: 00007f0011b8cf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000024008040 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0012179b2f R14: 00007f000f0a8300 R15: 0000000000022000
 </TASK>
----------------
Code disassembly (best guess):
   0:	48 89 ef             	mov    %rbp,%rdi
   3:	5d                   	pop    %rbp
   4:	e9 c1 19 46 00       	jmpq   0x4619ca
   9:	5d                   	pop    %rbp
   a:	be 03 00 00 00       	mov    $0x3,%esi
   f:	e9 a6 f1 62 02       	jmpq   0x262f1ba
  14:	66 0f 1f 44 00 00    	nopw   0x0(%rax,%rax,1)
  1a:	48 8b be b0 01 00 00 	mov    0x1b0(%rsi),%rdi
  21:	e8 b4 ff ff ff       	callq  0xffffffda
  26:	31 c0                	xor    %eax,%eax
  28:	c3                   	retq
  29:	90                   	nop
* 2a:	65 8b 05 89 a9 8a 7e 	mov    %gs:0x7e8aa989(%rip),%eax        # 0x7e8aa9ba <-- trapping instruction
  31:	89 c1                	mov    %eax,%ecx
  33:	48 8b 34 24          	mov    (%rsp),%rsi
  37:	81 e1 00 01 00 00    	and    $0x100,%ecx
  3d:	65                   	gs
  3e:	48                   	rex.W
  3f:	8b                   	.byte 0x8b