watchdog: BUG: soft lockup - CPU#0 stuck for 143s! [syz.4.376:2785]
Modules linked in:
CPU: 0 PID: 2785 Comm: syz.4.376 Tainted: G        W         5.15.170-syzkaller-00230-g1f9202a6d83b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:unwind_get_return_address_ptr arch/x86/kernel/unwind_frame.c:28 [inline]
RIP: 0010:update_stack_state+0x372/0x460 arch/x86/kernel/unwind_frame.c:241
Code: c0 49 89 06 48 8b 4d 90 42 80 3c 39 00 48 8b 5d c8 4c 8b 75 b8 74 0c 48 89 df e8 79 a6 7d 00 48 8b 45 c0 48 c7 03 00 00 00 00 <48> 83 c0 08 48 89 c3 eb 08 48 8b 5d 88 48 83 eb 80 4c 89 f0 48 c1
RSP: 0018:ffffc900000075b0 EFLAGS: 00000246
RAX: ffffc90000be7608 RBX: ffffc90000007758 RCX: 1ffff92000000eeb
RDX: 1ffff92000000ee2 RSI: ffffc90000be7608 RDI: ffffc90000007758
RBP: ffffc90000007668 R08: ffffc900000077e8 R09: 0000000000000014
R10: ffffc900000077f0 R11: dffffc0000000001 R12: 1ffff92000000ee8
R13: 0000000000000000 R14: ffffc90000007728 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 CR3: 0000000006a0f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 unwind_next_frame+0x3cb/0x700 arch/x86/kernel/unwind_frame.c:305
 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:38 [inline]
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:433 [inline]
 __kasan_slab_alloc+0xb1/0xe0 mm/kasan/common.c:466
 kasan_slab_alloc include/linux/kasan.h:217 [inline]
 slab_post_alloc_hook+0x53/0x2c0 mm/slab.h:550
 slab_alloc_node mm/slub.c:3240 [inline]
 slab_alloc mm/slub.c:3248 [inline]
 kmem_cache_alloc+0xf5/0x200 mm/slub.c:3253
 kmem_cache_alloc_node include/linux/slab.h:474 [inline]
 __alloc_skb+0xbe/0x550 net/core/skbuff.c:416
 alloc_skb include/linux/skbuff.h:1183 [inline]
 ndisc_alloc_skb+0xf3/0x2d0 net/ipv6/ndisc.c:423
 ndisc_send_rs+0x26c/0x6a0 net/ipv6/ndisc.c:689
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3979
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1457
 expire_timers kernel/time/timer.c:1502 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1773
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1786
 handle_softirqs+0x25e/0x5c0 kernel/softirq.c:565
 __do_softirq kernel/softirq.c:603 [inline]
 invoke_softirq kernel/softirq.c:425 [inline]
 __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:652
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:664
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:preempt_schedule_irq+0xc2/0x140 kernel/sched/core.c:6916
Code: 4c 89 e7 e8 00 21 cd fc f6 44 24 21 02 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 54 cc 66 fc fb bf 01 00 00 00 <e8> e9 e3 ff ff fa bf 01 00 00 00 e8 de cd 66 fc 65 48 8b 1d a6 cf
RSP: 0018:ffffc90000be7480 EFLAGS: 00000246
RAX: 1ffff11020efa646 RBX: 1ffff9200017ce94 RCX: ffffffff84e77000
RDX: 1ffff11020efa4f5 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc90000be7508 R08: ffffffff874d2000 R09: ffffffff874d2008
R10: ffffffff874d2018 R11: ffffffff874d2010 R12: ffffc90000be74a0
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff9200017ce90
 irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:398
 irqentry_exit+0x30/0x40 kernel/entry/common.c:432
 sysvec_apic_timer_interrupt+0x64/0xc0 arch/x86/kernel/apic/apic.c:1108
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:kasan_check_range+0x1c5/0x2a0 mm/kasan/generic.c:189
Code: 85 ed 49 0f 49 dd 48 83 e3 f8 49 29 dd 74 12 41 80 39 00 0f 85 a6 00 00 00 49 ff c1 49 ff cd 75 ee 5b 41 5c 41 5d 41 5e 41 5f <5d> c3 45 84 f6 75 61 41 f7 c6 00 ff 00 00 75 5d 41 f7 c6 00 00 ff
RSP: 0018:ffffc90000be7608 EFLAGS: 00000256
RAX: ffffffff81b7af01 RBX: ffff88810405e320 RCX: ffffffff81b7b001
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff88810405e320
RBP: ffffc90000be7608 R08: dffffc0000000000 R09: ffffed102080bc65
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffffea000487d980 R14: dffffc0000000000 R15: 0000000000000000
 __kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37
 instrument_write include/linux/instrumented.h:41 [inline]
 __clear_bit include/asm-generic/bitops/instrumented-non-atomic.h:42 [inline]
 __reset_page_owner+0xc1/0x190 mm/page_owner.c:163
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1472 [inline]
 free_pcp_prepare mm/page_alloc.c:1544 [inline]
 free_unref_page_prepare+0x7c8/0x7d0 mm/page_alloc.c:3534
 free_unref_page+0xe8/0x750 mm/page_alloc.c:3616
 free_the_page mm/page_alloc.c:805 [inline]
 __free_pages+0x61/0xf0 mm/page_alloc.c:5855
 __vunmap+0x7bc/0x8f0 mm/vmalloc.c:2652
 __vfree mm/vmalloc.c:2700 [inline]
 vfree+0x7f/0xb0 mm/vmalloc.c:2731
 kcov_put kernel/kcov.c:417 [inline]
 kcov_close+0x2b/0x50 kernel/kcov.c:519
 __fput+0x228/0x8c0 fs/file_table.c:280
 ____fput+0x15/0x20 fs/file_table.c:308
 task_work_run+0x129/0x190 kernel/task_work.c:188
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0xc48/0x2ca0 kernel/exit.c:880
 do_group_exit+0x141/0x310 kernel/exit.c:1002
 get_signal+0x7a3/0x1630 kernel/signal.c:2907
 arch_do_signal_or_restart+0xbd/0x1680 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0xa0/0xe0 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:214
 irqentry_exit_to_user_mode+0x9/0x10 kernel/entry/common.c:320
 irqentry_exit+0x12/0x40 kernel/entry/common.c:411
 sysvec_apic_timer_interrupt+0x64/0xc0 arch/x86/kernel/apic/apic.c:1108
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0033:0x7f05ee23cd19
Code: Unable to access opcode bytes at RIP 0x7f05ee23ccef.
RSP: 002b:00007f05ec8ae0e8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007f05ee42cfa8 RCX: 00007f05ee23cd19
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f05ee42cfa8
RBP: 00007f05ee42cfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f05ee42cfac
R13: 0000000000000000 R14: 00007ffc14cf50b0 R15: 00007ffc14cf5198
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 15 Comm: rcub/0 Tainted: G        W         5.15.170-syzkaller-00230-g1f9202a6d83b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__raw_callee_save___kvm_vcpu_is_preempted+0xf/0x20
Code: 10 01 c0 be 0e 00 00 00 e8 ae ae 51 01 5d c3 cc cc cc cc cc cc cc cc cc cc cc cc 48 8b 04 fd 30 38 26 86 80 b8 50 70 02 00 00 <0f> 95 c0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 55 48 89 e5 41
RSP: 0018:ffffc900000f7be8 EFLAGS: 00000246
RAX: ffff8881f7000000 RBX: ffff8881077d27c8 RCX: ffffffff84e6ca1b
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000000
RBP: ffffc900000f7c90 R08: dffffc0000000000 R09: ffffed102004d001
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff888100268000 R14: ffffffff86bab4b8 R15: ffffc900000f7ce0
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f47c1c1b060 CR3: 000000010c6bd000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 __rt_mutex_slowlock kernel/locking/rtmutex.c:1629 [inline]
 __rt_mutex_slowlock_locked kernel/locking/rtmutex.c:1662 [inline]
 rt_mutex_slowlock+0x184/0x300 kernel/locking/rtmutex.c:1691
 __rt_mutex_lock kernel/locking/rtmutex.c:1703 [inline]
 __rt_mutex_lock_common kernel/locking/rtmutex_api.c:30 [inline]
 rt_mutex_lock+0x14a/0x210 kernel/locking/rtmutex_api.c:66
 rcu_boost kernel/rcu/tree_plugin.h:1060 [inline]
 rcu_boost_kthread+0x231/0x6e0 kernel/rcu/tree_plugin.h:1085
 kthread+0x421/0x510 kernel/kthread.c:337
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>