watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz.2.668:6049]
Modules linked in:
CPU: 0 PID: 6049 Comm: syz.2.668 Not tainted 5.10.224-syzkaller-00361-g50f1826c82c1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:__kernel_text_address+0xd4/0x110 kernel/extable.c:118
Code: be 01 00 00 00 45 85 ff 75 20 48 c7 c0 00 80 ec 86 48 39 c3 0f 93 c0 48 c7 c1 20 a8 fa 86 48 39 cb 0f 92 c1 20 c1 44 0f b6 f1 <44> 89 f0 5b 41 5e 41 5f 5d c3 48 c7 c1 40 72 e3 86 80 e1 07 80 c1
RSP: 0018:ffffc90000007170 EFLAGS: 00000283
RAX: ffffffff84e050a3 RBX: ffffffff81a82559 RCX: 0000000000007201
RDX: 1ffff92000000e3a RSI: ffffc90000007568 RDI: ffffffff81a82559
RBP: ffffc90000007188 R08: ffffc900000072a8 R09: 0000000000000000
R10: ffffc900000072b0 R11: dffffc0000000001 R12: ffff88811a902780
R13: ffffffff8159b740 R14: 0000000000000001 R15: 1ffff92000000e41
FS:  00007f621fe336c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c28ef79 CR3: 000000012c2e2000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 unwind_get_return_address+0x4d/0x90 arch/x86/kernel/unwind_frame.c:19
 arch_stack_walk+0xf3/0x140 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:121
 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:430 [inline]
 ____kasan_kmalloc+0xdb/0x110 mm/kasan/common.c:509
 __kasan_kmalloc+0x9/0x10 mm/kasan/common.c:518
 kasan_kmalloc include/linux/kasan.h:254 [inline]
 __kmalloc+0x1aa/0x330 mm/slub.c:4033
 kmalloc include/linux/slab.h:557 [inline]
 kzalloc include/linux/slab.h:664 [inline]
 neigh_alloc net/core/neighbour.c:439 [inline]
 ___neigh_create+0x6e1/0x1a10 net/core/neighbour.c:592
 __neigh_create+0x32/0x40 net/core/neighbour.c:680
 ip6_finish_output2+0x957/0x1850 net/ipv6/ip6_output.c:142
 __ip6_finish_output+0x5ec/0x780 net/ipv6/ip6_output.c:216
 ip6_finish_output+0x34/0x1e0 net/ipv6/ip6_output.c:226
 NF_HOOK_COND include/linux/netfilter.h:288 [inline]
 ip6_output+0x1f7/0x4c0 net/ipv6/ip6_output.c:249
 dst_output include/net/dst.h:437 [inline]
 NF_HOOK include/linux/netfilter.h:299 [inline]
 ndisc_send_skb+0x6e9/0xc00 net/ipv6/ndisc.c:511
 ndisc_send_rs+0x532/0x6a0 net/ipv6/ndisc.c:705
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3964
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1450
 expire_timers kernel/time/timer.c:1495 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1789
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1802
 __do_softirq+0x268/0x5bb kernel/softirq.c:309
 asm_call_irq_on_stack+0xf/0x20
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
 do_softirq_own_stack+0x60/0x80 arch/x86/kernel/irq_64.c:77
 invoke_softirq kernel/softirq.c:405 [inline]
 __irq_exit_rcu+0x128/0x150 kernel/softirq.c:435
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:447
 sysvec_apic_timer_interrupt+0xbf/0xe0 arch/x86/kernel/apic/apic.c:1094
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
RIP: 0010:schedule_debug kernel/sched/core.c:4553 [inline]
RIP: 0010:__schedule+0x12d/0x1330 kernel/sched/core.c:4698
Code: 74 08 48 89 df e8 33 24 f7 fc 48 8b 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 1a 24 f7 fc 48 81 3b 9d 6e ac 57 <0f> 85 c0 0d 00 00 65 8b 05 f2 47 51 7b 25 ff ff ff 7f 83 f8 01 0f
RSP: 0018:ffffc90001c5f8c0 EFLAGS: 00000246
RAX: 1ffff9200038b000 RBX: ffffc90001c58000 RCX: 1ffff9200038bf24
RDX: 1ffff9200038bf24 RSI: ffffffff85602320 RDI: ffffffff856022e0
RBP: ffffc90001c5f9b0 R08: ffffffff87084008 R09: ffffffff87084018
R10: ffffffff87084010 R11: ffffffff87084003 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff8881f7000000 R15: ffff88811a902780
 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:5065
 irqentry_exit_cond_resched kernel/entry/common.c:365 [inline]
 irqentry_exit+0x4f/0x60 kernel/entry/common.c:395
 sysvec_apic_timer_interrupt+0xcb/0xe0 arch/x86/kernel/apic/apic.c:1094
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
RIP: 0010:check_kcov_mode kernel/kcov.c:174 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:218 [inline]
RIP: 0010:__sanitizer_cov_trace_switch+0x86/0xe0 kernel/kcov.c:320
Code: 8b 74 d6 10 65 8b 05 c5 b8 97 7e a9 00 01 ff 00 74 11 a9 00 01 00 00 74 de 41 83 bb dc 0a 00 00 00 74 d4 41 8b 83 b8 0a 00 00 <83> f8 03 75 c8 49 8b 8b c0 0a 00 00 45 8b bb bc 0a 00 00 49 c1 e7
RSP: 0018:ffffc90001c5fb30 EFLAGS: 00000246
RAX: 0000000000000002 RBX: 0000000000000000 RCX: 000000000000008b
RDX: 0000000000000006 RSI: ffffffff867ac8c0 RDI: 0000000000000001
RBP: ffffc90001c5fb50 R08: 0000000000000005 R09: ffffffff815edde8
R10: 000000000000000c R11: ffff88811a902780 R12: 0000000000000001
R13: 0000000000000001 R14: 0000000000000007 R15: 1ffff9200038bfac
 do_futex+0x168/0x17b0 kernel/futex/core.c:3742
 __do_sys_futex kernel/futex/core.c:3820 [inline]
 __se_sys_futex+0x355/0x470 kernel/futex/core.c:3786
 __x64_sys_futex+0xe5/0x100 kernel/futex/core.c:3786
 do_syscall_64+0x34/0x70
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f62211b9ef9
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:00007f621fe330e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f6221371f88 RCX: 00007f62211b9ef9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f6221371f8c
RBP: 00007f6221371f80 R08: 00007ffec4f3c0b0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6221371f8c
R13: 0000000000000000 R14: 00007ffec4e51bf0 R15: 00007ffec4e51cd8
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 6027 Comm: syz.1.664 Not tainted 5.10.224-syzkaller-00361-g50f1826c82c1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:preempt_count_sub+0x32/0x160 kernel/sched/core.c:4486
Code: fb 48 c7 c0 00 b9 08 87 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 0f b6 04 30 84 c0 0f 85 c1 00 00 00 83 3d 1e a5 bf 05 00 <75> 22 65 8b 05 a1 59 b9 7e 89 c1 81 e1 ff ff ff 7f 39 d9 7c 24 81
RSP: 0018:ffffc90000170648 EFLAGS: 00000046
RAX: 0000000000000004 RBX: 0000000000000001 RCX: ffffffff8708b903
RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 0000000000000001
RBP: ffffc90000170658 R08: dffffc0000000000 R09: ffffed103ee2a5f7
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff888121282b38
FS:  00007f13424e96c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3051eff8 CR3: 000000010f9d4000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 irq_work_queue+0xb4/0x160 kernel/irq_work.c:76
 __perf_event_overflow+0x272/0x350 kernel/events/core.c:9064
 perf_swevent_hrtimer+0x3fd/0x560 kernel/events/core.c:10463
 __run_hrtimer kernel/time/hrtimer.c:1583 [inline]
 __hrtimer_run_queues+0x3d7/0xa50 kernel/time/hrtimer.c:1647
 hrtimer_interrupt+0x39a/0x8b0 kernel/time/hrtimer.c:1709
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1083 [inline]
 __sysvec_apic_timer_interrupt+0xfd/0x3c0 arch/x86/kernel/apic/apic.c:1100
 run_sysvec_on_irqstack_cond arch/x86/include/asm/irq_stack.h:91 [inline]
 sysvec_apic_timer_interrupt+0xba/0xe0 arch/x86/kernel/apic/apic.c:1094
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
RIP: 0010:check_kcov_mode kernel/kcov.c:163 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:218 [inline]
RIP: 0010:__sanitizer_cov_trace_cmp4+0x2c/0x90 kernel/kcov.c:258
Code: 89 e5 4c 8b 45 08 65 48 8b 15 50 bc 97 7e 65 8b 05 55 bc 97 7e a9 00 01 ff 00 74 10 a9 00 01 00 00 74 5b 83 ba dc 0a 00 00 00 <74> 52 8b 82 b8 0a 00 00 83 f8 03 75 47 48 8b 8a c0 0a 00 00 44 8b
RSP: 0018:ffffc90000170c68 EFLAGS: 00000246
RAX: 0000000000000102 RBX: 0000000000002ab5 RCX: 00000000001dd9e3
RDX: ffff88813e9e62c0 RSI: 0000000000057e40 RDI: 0000000000002ab5
RBP: ffffc90000170c68 R08: ffffffff84282ba9 R09: 0000000000000003
R10: fffff5200002e184 R11: dffffc0000000001 R12: 1ffff11024299554
R13: ffff8881214caa68 R14: 0000000000057e40 R15: 431bde82d7b634db
 rfc3315_s14_backoff_update+0x59/0xb0 net/ipv6/addrconf.c:118
 addrconf_rs_timer+0x322/0x600 net/ipv6/addrconf.c:3970
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1450
 expire_timers kernel/time/timer.c:1495 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1789
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1802
 __do_softirq+0x268/0x5bb kernel/softirq.c:309
 asm_call_irq_on_stack+0xf/0x20
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
 do_softirq_own_stack+0x60/0x80 arch/x86/kernel/irq_64.c:77
 invoke_softirq kernel/softirq.c:405 [inline]
 __irq_exit_rcu+0x128/0x150 kernel/softirq.c:435
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:447
 sysvec_apic_timer_interrupt+0xbf/0xe0 arch/x86/kernel/apic/apic.c:1094
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
RIP: 0010:__kasan_check_read+0x12/0x20 mm/kasan/shadow.c:31
Code: 85 eb 0a 48 c7 c7 21 1c d1 85 4c 89 fe e8 ec 14 04 03 31 db eb d3 cc cc 55 48 89 e5 89 f6 48 8b 4d 08 31 d2 e8 ef ed ff ff 5d <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 55 48 89 e5 89 f6 48 8b
RSP: 0018:ffffc90001897a40 EFLAGS: 00000256
RAX: ffff88810b129301 RBX: dffffc0000000000 RCX: ffffffff81506ad9
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88813e9e62c0
RBP: ffffc90001897ad0 R08: dffffc0000000000 R09: ffffed1027d3cc59
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88813e9e62c0
R13: ffffffff86cd5f20 R14: ffffffff86cd5f50 R15: 0000000000000010
 mutex_optimistic_spin kernel/locking/mutex.c:688 [inline]
 __mutex_lock_common kernel/locking/mutex.c:1066 [inline]
 __mutex_lock+0x6b2/0xf20 kernel/locking/mutex.c:1117
 __mutex_lock_slowpath+0xe/0x10 kernel/locking/mutex.c:1379
 mutex_lock+0xd6/0x110 kernel/locking/mutex.c:299
 rtnl_lock+0x15/0x20 net/core/rtnetlink.c:72
 tun_set_queue drivers/net/tun.c:2977 [inline]
 __tun_chr_ioctl+0x3ec/0x2260 drivers/net/tun.c:3099
 tun_chr_ioctl+0x2a/0x40 drivers/net/tun.c:3395
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl+0x114/0x190 fs/ioctl.c:739
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:739
 do_syscall_64+0x34/0x70
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f134386fef9
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:00007f13424e9038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f1343a27f80 RCX: 00007f134386fef9
RDX: 00000000200001c0 RSI: 00000000400454d9 RDI: 0000000000000005
RBP: 00007f13438e29f6 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1343a27f80 R15: 00007ffe4cfb1fa8