watchdog: BUG: soft lockup - CPU#0 stuck for 245s! [syz.3.1732:9497]
Modules linked in:
CPU: 0 PID: 9497 Comm: syz.3.1732 Tainted: G        W          6.1.90-syzkaller-00004-g79436849ef1d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:ndisc_send_rs+0x481/0x5f0 net/ipv6/ndisc.c:720
Code: 85 00 00 00 31 c9 ff d3 eb 0c e8 1a 3b f8 fc eb 05 e8 13 3b f8 fc 48 8b 75 b8 48 8b 7d d0 4c 89 ea e8 83 d9 ff ff 48 83 c4 20 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 e8 ef 3a f8 fc 48 89 df be 03 00
RSP: 0018:ffffc90000007c28 EFLAGS: 00000286
RAX: 7e966d9f687d5a00 RBX: 0000000000000000 RCX: ffff8881110fa880
RDX: 0000000000000100 RSI: 00000000ffffffea RDI: 0000000000000000
RBP: ffffc90000007c50 R08: ffffffff847d490a R09: ffff888108d5e900
R10: 0000000000000012 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffffc90000007cc0 R14: ffff888115fb8000 R15: ffff88812b1ff010
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 0000000137e7d000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 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:update_stack_state+0x293/0x460 arch/x86/kernel/unwind_frame.c:261
Code: 00 49 83 3e 00 48 8b 45 a8 4c 8b ad 78 ff ff ff 74 22 44 3b 7d a4 75 1c 48 3b 45 98 73 16 31 db 89 d8 48 81 c4 90 00 00 00 5b <41> 5c 41 5d 41 5e 41 5f 5d c3 4d 85 ed 4c 89 75 b0 74 77 49 bf 00
RSP: 0018:ffffc900031cf168 EFLAGS: 00000286
RAX: 00000000031cf201 RBX: ffffc900031cf2b0 RCX: 1ffff92000639e4f
RDX: 1ffff92000639e46 RSI: ffffc900031cf390 RDI: ffffc900031cf278
RBP: ffffc900031cf188 R08: ffffc900031cf308 R09: 0000000000000000
R10: ffffc900031cf310 R11: dffffc0000000001 R12: 1ffff92000639e4c
R13: 0000000000000000 R14: ffffc900031cf260 R15: dffffc0000000000
 unwind_next_frame+0x3cb/0x700 arch/x86/kernel/unwind_frame.c:315
 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 save_stack+0xf6/0x1e0 mm/page_owner.c:147
 __reset_page_owner+0x54/0x190 mm/page_owner.c:168
 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: 0033:0x7f839c3799f9
Code: Unable to access opcode bytes at 0x7f839c3799cf.
RSP: 002b:00007f839d1f1038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007f839c515f80 RCX: 00007f839c3799f9
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000003
RBP: 00007f839c3e78ee R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f839c515f80 R15: 00007ffc79e05a28
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 9783 Comm: syz.4.1765 Tainted: G        W          6.1.90-syzkaller-00004-g79436849ef1d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:rdtsc_ordered arch/x86/include/asm/msr.h:215 [inline]
RIP: 0010:read_tsc+0x7/0x20 arch/x86/kernel/tsc.c:1095
Code: 24 80 00 00 00 48 be 00 00 00 00 00 fc ff df e9 53 fd ff ff e8 1a 5d e8 03 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 0f 01 f9 <66> 90 48 c1 e2 20 48 09 d0 5d c3 66 2e 0f 1f 84 00 00 00 00 00 0f
RSP: 0018:ffffc900001affb0 EFLAGS: 00000046
RAX: 00000000ae35a767 RBX: ffffffff86eb93a0 RCX: 0000000000000001
RDX: 0000000000000533 RSI: 0000000000000000 RDI: ffffffff86eb93a0
RBP: ffffc900001affb0 R08: ffffffff8167cbe4 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: 000000000007dcbe
R13: dffffc0000000000 R14: 0000025cafe50240 R15: ffff8881f7129d78
FS:  00007f6e493146c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c5b7ff5600 CR3: 0000000131066000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 tk_clock_read kernel/time/timekeeping.c:195 [inline]
 timekeeping_get_delta kernel/time/timekeeping.c:289 [inline]
 timekeeping_get_ns kernel/time/timekeeping.c:388 [inline]
 ktime_get_update_offsets_now+0x97/0x2d0 kernel/time/timekeeping.c:2329
 hrtimer_update_base kernel/time/hrtimer.c:631 [inline]
 hrtimer_interrupt+0x148/0xaa0 kernel/time/hrtimer.c:1793
 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:update_stack_state+0x349/0x460 arch/x86/kernel/unwind_frame.c:243
Code: 45 d0 4c 8d 70 38 4c 89 f0 48 c1 e8 03 49 bf 00 00 00 00 00 fc ff df 42 80 3c 38 00 74 08 4c 89 f7 e8 4b e6 84 00 48 8b 45 c0 <49> 89 06 48 8b 4d 90 42 80 3c 39 00 48 8b 5d c8 4c 8b 75 b8 74 0c
RSP: 0018:ffffc900001b0230 EFLAGS: 00000246
RAX: ffffc900001b0500 RBX: ffffc900001b03a8 RCX: ffffc900001b0510
RDX: 1ffff92000036072 RSI: ffffc900001b0500 RDI: ffffc900001b03d8
RBP: ffffc900001b02e8 R08: ffffc900001b0468 R09: 0000000000000000
R10: ffffc900001b0470 R11: dffffc0000000001 R12: 1ffff92000036078
R13: 0000000000000000 R14: ffffc900001b03b8 R15: dffffc0000000000
 unwind_next_frame+0x3cb/0x700 arch/x86/kernel/unwind_frame.c:315
 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_alloc_info+0x1f/0x30 mm/kasan/generic.c:505
 ____kasan_kmalloc mm/kasan/common.c:379 [inline]
 __kasan_kmalloc+0x9c/0xb0 mm/kasan/common.c:388
 kasan_kmalloc include/linux/kasan.h:212 [inline]
 kmalloc_trace+0x44/0xa0 mm/slab_common.c:1052
 kmalloc include/linux/slab.h:556 [inline]
 kzalloc include/linux/slab.h:692 [inline]
 ref_tracker_alloc+0x138/0x450 lib/ref_tracker.c:85
 __netdev_tracker_alloc include/linux/netdevice.h:4063 [inline]
 netdev_hold include/linux/netdevice.h:4092 [inline]
 dst_init+0xe1/0x400 net/core/dst.c:52
 dst_alloc+0x18a/0x1e0 net/core/dst.c:96
 ip6_dst_alloc net/ipv6/route.c:345 [inline]
 icmp6_dst_alloc+0xf8/0x510 net/ipv6/route.c:3266
 ndisc_send_skb+0x28b/0xdc0 net/ipv6/ndisc.c:489
 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:__schedule+0xa8/0x1550 kernel/sched/core.c:6634
Code: 89 04 29 48 89 f8 48 c1 e8 03 42 80 3c 28 00 74 05 e8 9c 41 9f fc 48 c7 84 24 a0 00 00 00 00 00 00 00 e8 6b 8a fb ff 48 63 d8 <83> fb 08 0f 83 9f 0f 00 00 48 8d 1c dd 80 18 54 86 48 89 d8 48 c1
RSP: 0018:ffffc90000cb78a0 EFLAGS: 00000286
RAX: 0000000000000001 RBX: 0000000000000001 RCX: 1ffff92000196f24
RDX: 1ffffffff0f2d208 RSI: ffffffff85c9f9e0 RDI: ffffffff85c9f9a0
RBP: ffffc90000cb79b0 R08: ffffffff87969040 R09: ffffffff87969048
R10: ffffffff87969058 R11: ffffffff87969050 R12: 0000000000000001
R13: dffffc0000000000 R14: dffffc0000000000 R15: 1ffff92000196f38
 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:7056
 raw_irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:396
 irqentry_exit+0x30/0x40 kernel/entry/common.c:439
 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x7c/0x80 kernel/kcov.c:313
Code: c1 e1 05 48 8d 41 28 4c 39 c8 77 1e 49 ff c2 4c 89 12 48 c7 44 11 08 07 00 00 00 48 89 7c 11 10 48 89 74 11 18 4c 89 44 11 20 <5d> c3 66 90 55 48 89 e5 41 57 41 56 41 54 53 48 8b 46 08 48 83 c0
RSP: 0018:ffffc90000cb7b50 EFLAGS: 00000297
RAX: 0000000000000002 RBX: 0000000000000008 RCX: ffff888117e70000
RDX: ffff888117e70000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000cb7b50 R08: ffffffff814890b6 R09: ffffed1022fce001
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888117e7002c
R13: 1ffff11022fce005 R14: 0000000000000009 R15: 0000000000000100
 get_signal+0x13c6/0x1820 kernel/signal.c:2854
 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
 irqentry_exit_to_user_mode+0x9/0x10 kernel/entry/common.c:316
 irqentry_exit+0x12/0x40 kernel/entry/common.c:419
 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0033:0x7f6e485799f9
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:00007f6e493140e8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007f6e48715f88 RCX: 00007f6e485799f9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f6e48715f88
RBP: 00007f6e48715f80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6e48715f8c
R13: 0000000000000000 R14: 00007fffcabcbbc0 R15: 00007fffcabcbca8
 </TASK>