watchdog: BUG: soft lockup - CPU#0 stuck for 226s! [syz.1.21:415]
Modules linked in:
CPU: 0 PID: 415 Comm: syz.1.21 Not tainted 6.1.90-syzkaller-00130-g1bb38f786569 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:validate_xmit_skb+0x9eb/0xe40
Code: 80 3c 27 00 74 0b 48 89 fb e8 61 37 b3 fd 48 89 df 48 8b 1f 48 85 db 0f 84 c9 00 00 00 e8 6d 19 6c fd 65 48 ff 43 08 45 31 ff <48> 8b 04 24 48 c7 44 24 40 0e 36 e0 45 49 c7 04 04 00 00 00 00 65
RSP: 0018:ffffc90000007340 EFLAGS: 00000246
RAX: ffffffff8409863b RBX: 0000000000000000 RCX: ffff888112135100
RDX: 0000000000000300 RSI: 0000000000000000 RDI: 0000000000000060
RBP: ffffc90000007410 R08: ffffffff84098491 R09: ffffffff84095dac
R10: 0000000000000002 R11: ffff888112135100 R12: dffffc0000000000
R13: 00000106401d5829 R14: 0000000000000000 R15: ffff8881427918c0
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 000000010e9b1000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __dev_queue_xmit+0x1636/0x36e0 net/core/dev.c:4292
 dev_queue_xmit include/linux/netdevice.h:3076 [inline]
 neigh_connected_output+0x449/0x4d0 net/core/neighbour.c:1592
 neigh_output include/net/neighbour.h:552 [inline]
 ip6_finish_output2+0x122b/0x1840 net/ipv6/ip6_output.c:134
 __ip6_finish_output net/ipv6/ip6_output.c:201 [inline]
 ip6_finish_output+0x50f/0xa60 net/ipv6/ip6_output.c:212
 NF_HOOK_COND include/linux/netfilter.h:294 [inline]
 ip6_output+0x1f7/0x4d0 net/ipv6/ip6_output.c:233
 dst_output include/net/dst.h:444 [inline]
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ndisc_send_skb+0x7cf/0xdc0 net/ipv6/ndisc.c:509
 ndisc_send_rs+0x47d/0x5f0 net/ipv6/ndisc.c:719
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3984
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1510
 expire_timers kernel/time/timer.c:1555 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1826
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1839
 __do_softirq+0x1d8/0x661 kernel/softirq.c:617
 invoke_softirq kernel/softirq.c:472 [inline]
 __irq_exit_rcu+0x50/0xf0 kernel/softirq.c:700
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:712
 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:page_ext_next include/linux/page_ext.h:74 [inline]
RIP: 0010:__reset_page_owner+0x11a/0x190 mm/page_owner.c:174
Code: 83 c5 18 4c 89 e8 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 ef e8 07 65 fa ff 48 8b 45 b8 49 89 45 00 48 8b 45 c0 42 80 3c 38 00 <0f> 84 70 ff ff ff 48 c7 c7 00 47 08 87 e8 44 64 fa ff e9 5f ff ff
RSP: 0018:ffffc9000b64f4e0 EFLAGS: 00000246
RAX: 1ffffffff0e108e0 RBX: ffff888104507200 RCX: ffffffff81c25be3
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff888104507214
RBP: ffffc9000b64f528 R08: dffffc0000000000 R09: ffffed10208a0e41
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff888104507220 R14: 0000000000000000 R15: dffffc0000000000
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1498 [inline]
 free_pcp_prepare mm/page_alloc.c:1572 [inline]
 free_unref_page_prepare+0x83d/0x850 mm/page_alloc.c:3498
 free_unref_page+0xb2/0x5c0 mm/page_alloc.c:3594
 free_the_page mm/page_alloc.c:798 [inline]
 __free_pages+0x61/0xf0 mm/page_alloc.c:5803
 __vunmap+0x9f3/0xb60 mm/vmalloc.c:2728
 __vfree mm/vmalloc.c:2776 [inline]
 vfree+0x5c/0x80 mm/vmalloc.c:2807
 kcov_put kernel/kcov.c:428 [inline]
 kcov_close+0x2b/0x50 kernel/kcov.c:524
 __fput+0x3ab/0x870 fs/file_table.c:320
 ____fput+0x15/0x20 fs/file_table.c:348
 task_work_run+0x24d/0x2e0 kernel/task_work.c:179
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0xbd5/0x2b80 kernel/exit.c:875
 do_group_exit+0x21a/0x2d0 kernel/exit.c:1025
 get_signal+0x169d/0x1820 kernel/signal.c:2880
 arch_do_signal_or_restart+0xb0/0x16f0 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x74/0xa0 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x26/0x130 kernel/entry/common.c:303
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fbc2ed779f9
Code: Unable to access opcode bytes at 0x7fbc2ed779cf.
RSP: 002b:00007fbc2fb5e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007fbc2ef06058 RCX: 00007fbc2ed779f9
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000005
RBP: 00007fbc2ede58ee R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fbc2ef06058 R15: 00007ffddc0d2528
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 715 Comm: kworker/u4:7 Not tainted 6.1.90-syzkaller-00130-g1bb38f786569 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:csd_lock_wait kernel/smp.c:453 [inline]
RIP: 0010:smp_call_function_many_cond+0x856/0x930 kernel/smp.c:998
Code: e6 01 31 ff e8 4b 9f 09 00 41 83 e7 01 49 bf 00 00 00 00 00 fc ff df 75 0a e8 86 9b 09 00 e9 2f ff ff ff f3 90 42 0f b6 04 3b <84> c0 75 14 41 f7 06 01 00 00 00 0f 84 12 ff ff ff e8 64 9b 09 00
RSP: 0018:ffffc900096df840 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 1ffff1103ee07a99 RCX: ffff88811bd75100
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900096df958 R08: ffffffff816c0715 R09: ffffed103ee271fb
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000800000000 R14: ffff8881f703d4c8 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffca26f02d8 CR3: 0000000006e0f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 on_each_cpu_cond_mask+0x40/0x80 kernel/smp.c:1166
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:1334 [inline]
 text_poke_bp_batch+0x1e9/0x730 arch/x86/kernel/alternative.c:1534
 text_poke_flush arch/x86/kernel/alternative.c:1725 [inline]
 text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:1732
 arch_jump_label_transform_apply+0x15/0x30 arch/x86/kernel/jump_label.c:146
 __jump_label_update+0x36a/0x380 kernel/jump_label.c:455
 jump_label_update+0x3af/0x450 kernel/jump_label.c:801
 static_key_enable_cpuslocked+0x12f/0x250 kernel/jump_label.c:177
 static_key_enable+0x1a/0x30 kernel/jump_label.c:190
 toggle_allocation_gate+0xbf/0x450 mm/kfence/core.c:804
 process_one_work+0x73d/0xcb0 kernel/workqueue.c:2299
 worker_thread+0xa60/0x1260 kernel/workqueue.c:2446
 kthread+0x26d/0x300 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
NMI backtrace for cpu 0
CPU: 0 PID: 1118 Comm: syz.2.126 Tainted: G             L     6.1.90-syzkaller-00130-g1bb38f786569 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:task_stack_page include/linux/sched/task_stack.h:21 [inline]
RIP: 0010:last_frame arch/x86/kernel/unwind_frame.c:82 [inline]
RIP: 0010:is_last_frame arch/x86/kernel/unwind_frame.c:87 [inline]
RIP: 0010:is_last_task_frame arch/x86/kernel/unwind_frame.c:156 [inline]
RIP: 0010:unwind_next_frame+0x113/0x700 arch/x86/kernel/unwind_frame.c:276
Code: df e8 11 ef 84 00 48 ba 00 00 00 00 00 fc ff df 48 89 5d 88 48 8b 03 48 89 45 98 48 8d 58 20 48 89 d8 48 c1 e8 03 80 3c 10 00 <74> 12 48 89 df e8 e3 ee 84 00 48 ba 00 00 00 00 00 fc ff df 48 8b
RSP: 0018:ffffc90000006bf8 EFLAGS: 00000046
RAX: 1ffff11021edfcac RBX: ffff88810f6fe560 RCX: 0000000000000007
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffc90000006d00
RBP: ffffc90000006c70 R08: ffffffff81011e70 R09: ffffc90000006d00
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 1ffff92000000d9c R14: ffffc90000006d00 R15: 1ffff92000000da0
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe1a4e35000 CR3: 000000010f4c2000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 perf_callchain_kernel+0x49b/0x650 arch/x86/events/core.c:2800
 get_perf_callchain+0x579/0x810 kernel/events/callchain.c:200
 perf_callchain kernel/events/core.c:7423 [inline]
 perf_prepare_sample+0x38f/0x1ca0 kernel/events/core.c:7456
 __perf_event_output kernel/events/core.c:7641 [inline]
 perf_event_output_forward+0xdb/0x1b0 kernel/events/core.c:7661
 __perf_event_overflow+0x458/0x630 kernel/events/core.c:9409
 perf_swevent_hrtimer+0x38e/0x4f0 kernel/events/core.c:10817
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x41a/0xad0 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x40c/0xaa0 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
 __sysvec_apic_timer_interrupt+0xfd/0x3c0 arch/x86/kernel/apic/apic.c:1112
 sysvec_apic_timer_interrupt+0x44/0xc0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:arch_stack_walk+0x114/0x140 arch/x86/kernel/stacktrace.c:24
Code: ff 48 89 df e8 0d 9c 05 00 48 85 c0 74 1e 4c 89 f7 48 89 c6 41 ff d5 84 c0 74 11 48 89 df e8 23 9d 05 00 83 bd 70 ff ff ff 00 <75> d5 65 48 8b 04 25 28 00 00 00 48 3b 45 d0 75 0f 48 83 c4 68 5b
RSP: 0018:ffffc90000007740 EFLAGS: 00000202
RAX: 0000000000007701 RBX: ffffc90000007740 RCX: 0000000000007701
RDX: 1ffff92000000eea RSI: ffffc90000007f18 RDI: ffffc90000007798
RBP: ffffc900000077d0 R08: ffffc90000007828 R09: 0000000000000008
R10: ffffc90000007830 R11: dffffc0000000001 R12: ffff88810f6fe540
R13: ffffffff8165c3e0 R14: ffffc90000007820 R15: 0000000000000000
 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+0x2b/0x40 mm/kasan/generic.c:516
 ____kasan_slab_free+0x131/0x180 mm/kasan/common.c:241
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:249
 kasan_slab_free include/linux/kasan.h:178 [inline]
 slab_free_hook mm/slub.c:1745 [inline]
 slab_free_freelist_hook mm/slub.c:1771 [inline]
 slab_free mm/slub.c:3684 [inline]
 kmem_cache_free+0x291/0x510 mm/slub.c:3706
 dst_destroy+0x223/0x320 net/core/dst.c:127
 dst_destroy_rcu+0x19/0x20 net/core/dst.c:140
 rcu_do_batch+0x534/0xb80 kernel/rcu/tree.c:2296
 rcu_core+0x4ee/0xf10 kernel/rcu/tree.c:2556
 rcu_core_si+0x9/0x10 kernel/rcu/tree.c:2573
 __do_softirq+0x1d8/0x661 kernel/softirq.c:617
 invoke_softirq kernel/softirq.c:472 [inline]
 __irq_exit_rcu+0x50/0xf0 kernel/softirq.c:700
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:712
 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:__tlb_remove_page_size+0x0/0x300 mm/mmu_gather.c:81
Code: 0c 48 c7 c7 10 89 72 87 e8 ed ad 08 00 48 89 1d c6 75 be 05 48 c7 c7 40 d2 af 85 48 89 de e8 c2 92 63 03 e9 b7 fe ff ff cc cc <55> 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 18 49 89 f7 48 89
RSP: 0018:ffffc90000b37318 EFLAGS: 00000293
RAX: ffffffff81b07758 RBX: 000000000000000c RCX: ffff88810f6fe540
RDX: 0000000000001000 RSI: ffffea0004706f40 RDI: ffffc90000b377a0
RBP: ffffc90000b37570 R08: ffffffff81b0774b R09: fffff940008e0def
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffea0004706f48
R13: ffffc90000b37630 R14: dffffc0000000000 R15: ffffea0004706f40
 unmap_single_vma mm/memory.c:1706 [inline]
 unmap_vmas+0x4e4/0x660 mm/memory.c:1746
 exit_mmap+0x2d1/0x940 mm/mmap.c:3336
 __mmput+0x95/0x310 kernel/fork.c:1298
 mmput+0x56/0x170 kernel/fork.c:1321
 exit_mm kernel/exit.c:566 [inline]
 do_exit+0xb29/0x2b80 kernel/exit.c:862
 do_group_exit+0x21a/0x2d0 kernel/exit.c:1025
 get_signal+0x169d/0x1820 kernel/signal.c:2880
 arch_do_signal_or_restart+0xb0/0x16f0 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x74/0xa0 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x26/0x130 kernel/entry/common.c:303
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fa0921779f9
Code: Unable to access opcode bytes at 0x7fa0921779cf.
RSP: 002b:00007fa092f12038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: fffffffffffffff2 RBX: 00007fa092305f80 RCX: 00007fa0921779f9
RDX: 00000000000026e1 RSI: 0000000000000000 RDI: ffffffffffffff9c
RBP: 00007fa0921e58ee R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fa092305f80 R15: 00007ffe21f2a388
 </TASK>