rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-...!: (10499 ticks this GP) idle=79dc/1/0x4000000000000000 softirq=19558/19558 fqs=9
	(t=10500 jiffies g=23817 q=673 ncpus=2)
rcu: rcu_preempt kthread starved for 10450 jiffies! g23817 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:27160 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5244 [inline]
 __schedule+0x143f/0x4570 kernel/sched/core.c:6561
 schedule+0xbf/0x180 kernel/sched/core.c:6637
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1965
 rcu_gp_fqs_loop+0x2d2/0x1150 kernel/rcu/tree.c:1706
 rcu_gp_kthread+0xa3/0x3b0 kernel/rcu/tree.c:1905
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 21 Comm: ksoftirqd/1 Not tainted 6.1.102-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:162 [inline]
RIP: 0010:unwind_next_frame+0x1ca/0x2220 arch/x86/kernel/unwind_orc.c:448
Code: 49 29 c6 49 c1 ee 08 48 c7 c0 28 65 af 8f 48 c7 c1 08 e7 d6 8f 48 29 c1 48 c1 e9 02 45 31 ff 80 3d aa d9 9b 0b 00 44 0f 45 f9 <41> 8d 47 ff 44 39 f0 0f 86 26 19 00 00 44 89 f0 48 8d 1c 85 28 65
RSP: 0018:ffffc900001b7100 EFLAGS: 00000202
RAX: ffffffff8faf6528 RBX: ffffc900001b7228 RCX: 000000000009e078
RDX: dffffc0000000000 RSI: ffffffff889d3ed7 RDI: dffffc0000000000
RBP: 1ffff92000036e42 R08: 0000000000000008 R09: ffffc900001b72d0
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888012b59dc0
R13: ffffffff889d3ed6 R14: 0000000000079d3e R15: 000000000009e078
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f68651b0270 CR3: 000000007f9c3000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 kasan_save_free_info+0x27/0x40 mm/kasan/generic.c:516
 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236
 kasan_slab_free include/linux/kasan.h:177 [inline]
 slab_free_hook mm/slub.c:1724 [inline]
 slab_free_freelist_hook mm/slub.c:1750 [inline]
 slab_free mm/slub.c:3661 [inline]
 kmem_cache_free+0x292/0x510 mm/slub.c:3683
 kfree_skb include/linux/skbuff.h:1220 [inline]
 ip6_mc_input+0x9bf/0xbd0 net/ipv6/ip6_input.c:589
 NF_HOOK+0x39d/0x450 include/linux/netfilter.h:302
 __netif_receive_skb_one_core net/core/dev.c:5528 [inline]
 __netif_receive_skb+0x1c6/0x530 net/core/dev.c:5642
 process_backlog+0x381/0x760 net/core/dev.c:5970
 __napi_poll+0xc7/0x470 net/core/dev.c:6537
 napi_poll net/core/dev.c:6604 [inline]
 net_rx_action+0x70f/0xeb0 net/core/dev.c:6718
 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571
 run_ksoftirqd+0xc6/0x120 kernel/softirq.c:938
 smpboot_thread_fn+0x52c/0xa30 kernel/smpboot.c:164
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
CPU: 0 PID: 6920 Comm: syz.3.1050 Not tainted 6.1.102-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:__ipv6_addr_type+0x170/0x2e0 net/ipv6/addrconf_core.c:89
Code: 87 0b f8 bb 42 00 05 00 eb 17 e8 1b 87 0b f8 bb 22 00 02 00 eb 0b e8 0f 87 0b f8 c1 e3 10 83 cb 02 89 d8 5b 41 5c 41 5e 41 5f <5d> c3 4d 8d 77 04 4c 89 f0 48 c1 e8 03 42 0f b6 04 20 84 c0 0f 85
RSP: 0018:ffffc90000006ba8 EFLAGS: 00000246
RAX: 0000000000020021 RBX: 0000000000000000 RCX: ffff888058360000
RDX: 0000000000000301 RSI: ffffffff8e618e70 RDI: 00000000000080fe
RBP: 00000000000080fe R08: 0000000000000003 R09: ffffffff897f1414
R10: 0000000000000002 R11: ffff888058360000 R12: ffffc90000006c88
R13: ffffc90000006c80 R14: ffff888020528000 R15: ffff888073e69c00
FS:  00007f07d055a6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056466ca26950 CR3: 000000004e7ed000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __ipv6_dev_get_saddr+0x117/0x4a0 net/ipv6/addrconf.c:1696
 ipv6_dev_get_saddr+0x413/0xb60 net/ipv6/addrconf.c:1847
 ip6_route_get_saddr include/net/ip6_route.h:145 [inline]
 ip6_dst_lookup_tail+0xcd4/0x11f0 net/ipv6/ip6_output.c:1121
 ip6_dst_lookup_flow+0xb5/0x170 net/ipv6/ip6_output.c:1246
 geneve_get_v6_dst+0x852/0xb80 drivers/net/geneve.c:900
 geneve6_xmit_skb drivers/net/geneve.c:1037 [inline]
 geneve_xmit+0x8a4/0x3550 drivers/net/geneve.c:1121
 __netdev_start_xmit include/linux/netdevice.h:4853 [inline]
 netdev_start_xmit include/linux/netdevice.h:4867 [inline]
 xmit_one net/core/dev.c:3627 [inline]
 dev_hard_start_xmit+0x261/0x8c0 net/core/dev.c:3643
 __dev_queue_xmit+0x1bb1/0x3cf0 net/core/dev.c:4293
 neigh_output include/net/neighbour.h:544 [inline]
 ip6_finish_output2+0xee1/0x1530 net/ipv6/ip6_output.c:134
 __ip6_finish_output net/ipv6/ip6_output.c:201 [inline]
 ip6_finish_output+0x6a0/0xa80 net/ipv6/ip6_output.c:212
 dst_output include/net/dst.h:444 [inline]
 NF_HOOK include/linux/netfilter.h:302 [inline]
 ndisc_send_skb+0xbab/0x14e0 net/ipv6/ndisc.c:509
 addrconf_rs_timer+0x357/0x610 net/ipv6/addrconf.c:3962
 call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1504
 expire_timers kernel/time/timer.c:1549 [inline]
 __run_timers+0x67c/0x890 kernel/time/timer.c:1820
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833
 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571
 __do_softirq kernel/softirq.c:605 [inline]
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:666
 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:preempt_schedule_irq+0xf2/0x1c0 kernel/sched/core.c:6873
Code: 89 f5 49 c1 ed 03 eb 0d 48 f7 03 08 00 00 00 0f 84 97 00 00 00 bf 01 00 00 00 e8 f9 e1 b0 f6 e8 a4 de e3 f6 fb bf 01 00 00 00 <e8> 79 b4 ff ff 43 80 7c 3d 00 00 74 08 4c 89 f7 e8 39 a4 34 f7 48
RSP: 0018:ffffc90004ba7560 EFLAGS: 00000286
RAX: ea2b7b1c87cd5700 RBX: 1ffff92000974eb4 RCX: ffffffff816ad9fa
RDX: dffffc0000000000 RSI: ffffffff8b0c0240 RDI: 0000000000000001
RBP: ffffc90004ba7620 R08: dffffc0000000000 R09: fffffbfff20e7259
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000974eac
R13: 1ffff92000974eb0 R14: ffffc90004ba7580 R15: dffffc0000000000
 irqentry_exit+0x53/0x80 kernel/entry/common.c:439
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:virt_to_slab mm/slab.h:175 [inline]
RIP: 0010:qlink_to_cache+0x21/0xa0 mm/kasan/quarantine.c:131
Code: 5d 41 5e 41 5f 5d c3 66 90 e8 9b 7d 5b ff 48 c1 e8 06 48 83 e0 c0 48 ba 00 00 00 00 00 ea ff ff 48 8b 4c 10 08 f6 c1 01 75 3c <48> 01 d0 66 90 48 8b 48 08 f6 c1 01 75 59 66 90 48 8b 08 48 c1 e1
RSP: 0018:ffffc90004ba76e0 EFLAGS: 00000246
RAX: 0000000000855f40 RBX: ffff88802157d140 RCX: 0000000000000000
RDX: ffffea0000000000 RSI: 000000000001ab79 RDI: 000000000001ab7a
RBP: dffffc0000000000 R08: ffffffff813db118 R09: 000000008080007e
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000cc0 R14: ffff88802157d140 R15: 0000000000000000
 qlist_free_all+0x3b/0xe0 mm/kasan/quarantine.c:184
 kasan_quarantine_reduce+0x156/0x170 mm/kasan/quarantine.c:294
 __kasan_slab_alloc+0x1f/0x70 mm/kasan/common.c:305
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook+0x52/0x3a0 mm/slab.h:737
 slab_alloc_node mm/slub.c:3398 [inline]
 slab_alloc mm/slub.c:3406 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3413 [inline]
 kmem_cache_alloc+0x10c/0x2d0 mm/slub.c:3422
 vm_area_dup+0x23/0x1b0 kernel/fork.c:466
 dup_mmap kernel/fork.c:645 [inline]
 dup_mm kernel/fork.c:1540 [inline]
 copy_mm+0xbbc/0x1990 kernel/fork.c:1589
 copy_process+0x19d5/0x4060 kernel/fork.c:2267
 kernel_clone+0x222/0x920 kernel/fork.c:2682
 __do_sys_clone kernel/fork.c:2823 [inline]
 __se_sys_clone kernel/fork.c:2807 [inline]
 __x64_sys_clone+0x231/0x280 kernel/fork.c:2807
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f07cf7773b9
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:00007f07d0559ff8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f07cf905f80 RCX: 00007f07cf7773b9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f07cf7e48e6 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f07cf905f80 R15: 00007ffd893570c8
 </TASK>