watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz.1.908:3147]
Modules linked in:
CPU: 1 PID: 3147 Comm: syz.1.908 Not tainted 5.4.276-syzkaller-00021-g58de09405d1e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:ndisc_send_skb+0x796/0xc30 net/ipv6/ndisc.c:514
Code: d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 90 0e b9 fd 48 8b 1b 4a 8d 3c fb be 08 00 00 00 e8 ef e1 b8 fd f0 4a ff 04 fb <49> 81 c6 58 02 00 00 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c
RSP: 0018:ffff8881f6f09a40 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13
RAX: 1ffff1103b9b4201 RBX: ffff8881e9e78000 RCX: ffffffff83db0fa1
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8881e9e78c28
RBP: ffff8881f6f09c30 R08: dffffc0000000000 R09: ffffed103d3cf186
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8881dcda1200 R14: ffff8881db2a8800 R15: 0000000000000185
FS:  00007f9ba51876c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9ba5f47eef CR3: 00000001de839000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3954
 call_timer_fn+0x36/0x390 kernel/time/timer.c:1448
 expire_timers kernel/time/timer.c:1493 [inline]
 __run_timers+0x879/0xbe0 kernel/time/timer.c:1817
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1830
 __do_softirq+0x23b/0x6b7 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x195/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:539 [inline]
 smp_apic_timer_interrupt+0x11a/0x460 arch/x86/kernel/apic/apic.c:1149
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
 </IRQ>
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x45/0x60 kernel/locking/spinlock.c:199
Code: 08 00 74 0c 48 c7 c7 90 3b eb 85 e8 35 01 43 fd 48 83 3d 9d 1e 9a 01 00 74 29 48 89 df e8 93 d6 fa fc 66 90 fb bf 01 00 00 00 <e8> 16 c3 f3 fc 65 8b 05 7b 70 b1 7b 85 c0 74 02 5b c3 e8 04 37 af
RSP: 0018:ffff8881e362ef50 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000001 RBX: ffff8881f6f57b40 RCX: dffffc0000000000
RDX: 0000000040000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff8881e362efb0 R08: ffffffff81799679 R09: fffffbfff0c96e7b
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f6f57b40
R13: ffff8881e57eee40 R14: dffffc0000000000 R15: 0000000000000000
 finish_lock_switch kernel/sched/core.c:3347 [inline]
 finish_task_switch+0x130/0x590 kernel/sched/core.c:3447
 context_switch kernel/sched/core.c:3611 [inline]
 __schedule+0xb0d/0x1320 kernel/sched/core.c:4307
 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:4558
 retint_kernel+0x1b/0x1b
RIP: 0010:do_memsw_account mm/memcontrol.c:98 [inline]
RIP: 0010:uncharge_batch+0x52e/0x5c0 mm/memcontrol.c:6715
Code: fc ff e9 ed fe ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 65 fc ff ff 4c 89 ff e8 8c 66 fc ff e9 58 fc ff ff e8 c2 36 a3 ff <83> 3d f3 df b3 04 00 0f 84 fb fb ff ff 48 b8 00 00 00 00 00 fc ff
RSP: 0018:ffff8881e362f200 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffffffff8196e58f RBX: ffff8881e362f3a0 RCX: ffff8881e57eee40
RDX: 0000000000000000 RSI: 000000000000117e RDI: 0000000000000000
RBP: ffff8881e362f2d8 R08: ffffffff8196e54e R09: ffffed103e1f1424
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881e362f380
R13: 000000000000000b R14: 1ffff1103c6c5e70 R15: 1ffff1103c6c5e74
 uncharge_page+0x77/0x450 mm/memcontrol.c:6753
 uncharge_list mm/memcontrol.c:6801 [inline]
 mem_cgroup_uncharge_list+0xcd/0x160 mm/memcontrol.c:6844
 release_pages+0xad0/0xb20 mm/swap.c:841
 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:189 [inline]
 tlb_flush_mmu+0xc8/0x170 mm/mmu_gather.c:196
 zap_pte_range mm/memory.c:1173 [inline]
 zap_pmd_range mm/memory.c:1222 [inline]
 zap_pud_range mm/memory.c:1251 [inline]
 zap_p4d_range mm/memory.c:1272 [inline]
 unmap_page_range+0x1d29/0x2620 mm/memory.c:1293
 unmap_single_vma mm/memory.c:1338 [inline]
 unmap_vmas+0x355/0x4b0 mm/memory.c:1370
 exit_mmap+0x2bc/0x520 mm/mmap.c:3191
 __mmput+0x8e/0x2c0 kernel/fork.c:1101
 exit_mm kernel/exit.c:536 [inline]
 do_exit+0xc08/0x2bc0 kernel/exit.c:846
 do_group_exit+0x138/0x300 kernel/exit.c:982
 get_signal+0xdb1/0x1440 kernel/signal.c:2735
 do_signal+0xb0/0x11f0 arch/x86/kernel/signal.c:809
 exit_to_usermode_loop+0xc0/0x1a0 arch/x86/entry/common.c:159
 prepare_exit_to_usermode+0x199/0x200 arch/x86/entry/common.c:194
 ret_from_intr+0x1c/0x1c
RIP: 0033:0x7f9ba5f47f19
Code: Bad RIP value.
RSP: 002b:00007f9ba5187048 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 00007f9ba60d6110 RCX: 00007f9ba5f47f19
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000006
RBP: 00007f9ba5fb6bcd R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f9ba60d6110 R15: 00007ffd6ef0c308
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 9 Comm: kworker/u4:1 Not tainted 5.4.276-syzkaller-00021-g58de09405d1e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:__read_once_size include/linux/compiler.h:268 [inline]
RIP: 0010:csd_lock_wait kernel/smp.c:109 [inline]
RIP: 0010:smp_call_function_single+0x235/0x4a0 kernel/smp.c:311
Code: 0f 85 df 01 00 00 44 8b 74 24 58 44 89 f6 83 e6 01 31 ff e8 3d b0 0a 00 41 83 e6 01 75 0a e8 42 ad 0a 00 e9 f4 00 00 00 f3 90 <42> 0f b6 04 2b 84 c0 75 15 f7 44 24 58 01 00 00 00 0f 84 d6 00 00
RSP: 0000:ffff8881f5dd78a0 EFLAGS: 00000293
RAX: ffffffff81598be1 RBX: 1ffff1103ebbaf1f RCX: ffff8881f5dcaf40
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff8881f5dd7990 R08: ffffffff81598bb3 R09: ffffed103edeb189
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1103ebbaf18
R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3fc3875000 CR3: 0000000005e0e000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 smp_call_function_many+0x6fe/0x9b0 kernel/smp.c:451
 smp_call_function kernel/smp.c:509 [inline]
 on_each_cpu+0xa5/0x1a0 kernel/smp.c:616
 text_poke_bp_batch+0x11a/0x2b0 arch/x86/kernel/alternative.c:1051
 arch_jump_label_transform_apply+0x27/0x40 arch/x86/kernel/jump_label.c:167
 static_key_enable_cpuslocked+0x12c/0x240 kernel/jump_label.c:177
 static_key_enable+0x16/0x20 kernel/jump_label.c:190
 toggle_allocation_gate+0xb1/0x240 mm/kfence/core.c:624
 process_one_work+0x765/0xd20 kernel/workqueue.c:2290
 worker_thread+0xaef/0x1470 kernel/workqueue.c:2436
 kthread+0x2da/0x360 kernel/kthread.c:288
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:354