rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (9152 ticks this GP) idle=e5bc/1/0x4000000000000000 softirq=117811/117816 fqs=4739
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1242544         12            0
rcu: 	cputime:    32899      19579           76   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=127265 q=11052 ncpus=2)
CPU: 1 UID: 0 PID: 27889 Comm: syz.8.6433 Not tainted 6.17.0-rc1-syzkaller-00022-g07866544e410-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:ipv6_get_saddr_eval+0x7cd/0xee0
Code: 28 00 74 08 4c 89 e7 e8 71 8d f6 f7 41 be e0 00 00 00 4d 03 34 24 4c 89 f0 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 5a 06 00 00 <45> 8b 36 44 89 ff 44 89 f6 e8 55 fc 92 f7 45 31 e4 45 39 f7 41 0f
RSP: 0018:ffffc900001dfc88 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc900001dfdc0 RCX: ffff8880371f8000
RDX: 0000000000000100 RSI: 000000000000000a RDI: 0000000000000000
RBP: 0000000000000005 R08: ffff8880371f8000 R09: 000000000000000b
R10: 000000000000000a R11: 0000000000000100 R12: ffff88802b27a000
R13: dffffc0000000000 R14: ffff888028f080e0 R15: 000000000000000a
FS:  00007f590106e6c0(0000) GS:ffff8881a3c1c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f889226c8ec CR3: 000000011cd9c000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __ipv6_dev_get_saddr+0x1af/0x440
 ipv6_dev_get_saddr+0x363/0xb70
 ip6_dst_lookup_tail+0xf2c/0x1510
 ip6_dst_lookup_flow+0x47/0xe0
 udp_tunnel6_dst_lookup+0x234/0x3c0
 geneve_xmit+0xd2e/0x2b70
 dev_hard_start_xmit+0x2d7/0x830
 __dev_queue_xmit+0x1b8d/0x3b50
 ip6_finish_output2+0x11fe/0x16a0
 ndisc_send_skb+0xb54/0x1440
 addrconf_rs_timer+0x369/0x670
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:finish_task_switch+0x26b/0x950
Code: 0f 84 3c 01 00 00 48 85 db 0f 85 63 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 4c 89 e7 e8 cf d7 ea 09 e8 5a 3f 36 00 fb 4c 8b 65 c0 <49> 8d bc 24 18 16 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0
RSP: 0018:ffffc900031df0b8 EFLAGS: 00000286
RAX: 46c1bc6bcd2c8800 RBX: 0000000000000000 RCX: 46c1bc6bcd2c8800
RDX: 0000000000000000 RSI: ffffffff8d9b748e RDI: ffffffff8be33600
RBP: ffffc900031df110 R08: ffffffff8fa38037 R09: 1ffffffff1f47006
R10: dffffc0000000000 R11: fffffbfff1f47007 R12: ffff8880371f8000
R13: dffffc0000000000 R14: ffff88810002d640 R15: ffff88813663ab58
 __schedule+0x17a0/0x4cc0
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:schedule+0x184/0x360
Code: c2 7e 15 f6 31 ff e8 cb b1 ff ff bf 01 00 00 00 e8 61 80 15 f6 43 80 3c 2e 00 74 d5 48 89 df e8 02 c2 a8 f6 eb cb 4c 8d 73 2c <4d> 89 f4 49 c1 ec 03 43 0f b6 04 2c 84 c0 0f 85 0e 01 00 00 41 8b
RSP: 0018:ffffc900031df4a8 EFLAGS: 00000246
RAX: 0000000080000001 RBX: ffff8880371f8000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8be335e0 RDI: 00000000ffffffff
RBP: 1ffff11006e3f003 R08: ffffffff8fa38037 R09: 1ffffffff1f47006
R10: dffffc0000000000 R11: fffffbfff1f47007 R12: ffff8880371f802c
R13: dffffc0000000000 R14: ffff8880371f802c R15: ffff8880371f9288
 schedule_timeout+0x9a/0x270
 wait_woken+0xbd/0x1b0
 __inet_stream_connect+0x8f4/0xe80
 mptcp_sendmsg_fastopen+0x2a5/0x580
 mptcp_sendmsg+0x176c/0x1970
 __sock_sendmsg+0xe5/0x270
 ____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: 0033:0x7f590018ebe9
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:00007f590106e038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f59003b5fa0 RCX: 00007f590018ebe9
RDX: e07e872420dfef8a RSI: 0000200000000b00 RDI: 0000000000000004
RBP: 00007f5900211e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f59003b6038 R14: 00007f59003b5fa0 R15: 00007ffec0b293a8
 </TASK>
