watchdog: BUG: soft lockup - CPU#1 stuck for 122s! [syz.4.211:1605] Modules linked in: CPU: 1 PID: 1605 Comm: syz.4.211 Not tainted 5.15.157-syzkaller-00897-g53be7c8abe11 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:unwind_next_frame+0x5a9/0x700 arch/x86/kernel/unwind_frame.c:360 Code: f7 e8 eb 05 00 00 48 ba 00 00 00 00 00 fc ff df 41 0f b6 04 17 84 c0 0f 85 b6 00 00 00 41 c7 06 00 00 00 00 31 c0 48 83 c4 50 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 44 89 f1 80 e1 07 80 c1 03 38 c1 RSP: 0018:ffffc900001cfd88 EFLAGS: 00000286 RAX: 00000000001cfe01 RBX: ffffc900001d0170 RCX: 00000000001cfe01 RDX: 1ffff92000039fba RSI: ffffc900001d0188 RDI: ffffc900001cfe18 RBP: ffffc900001cfdb0 R08: ffffc900001cfea8 R09: 0000000000000001 R10: ffffc900001cfeb0 R11: dffffc0000000001 R12: 0000000000000000 R13: ffffc900001cfe10 R14: ffffc900001cfdc0 R15: 1ffff92000039fb8 FS: 00007fd3d45e66c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31b1aff8 CR3: 000000012c345000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: 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+0x4b/0x70 mm/kasan/common.c:45 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370 ____kasan_slab_free+0x126/0x160 mm/kasan/common.c:365 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:373 kasan_slab_free include/linux/kasan.h:193 [inline] slab_free_hook mm/slub.c:1723 [inline] slab_free_freelist_hook+0xbd/0x190 mm/slub.c:1749 slab_free mm/slub.c:3519 [inline] kmem_cache_free+0x116/0x2e0 mm/slub.c:3535 kfree_skbmem+0x104/0x170 __kfree_skb net/core/skbuff.c:758 [inline] consume_skb+0xb4/0x250 net/core/skbuff.c:930 dummy_xmit+0x13f/0x1c0 drivers/net/dummy.c:64 __netdev_start_xmit include/linux/netdevice.h:5059 [inline] netdev_start_xmit include/linux/netdevice.h:5073 [inline] xmit_one net/core/dev.c:3624 [inline] dev_hard_start_xmit+0x228/0x620 net/core/dev.c:3640 __dev_queue_xmit+0x18b4/0x2e70 net/core/dev.c:4255 dev_queue_xmit+0x17/0x20 net/core/dev.c:4288 neigh_resolve_output+0x6b8/0x760 net/core/neighbour.c:1504 neigh_output include/net/neighbour.h:517 [inline] ip6_finish_output2+0xf95/0x16e0 net/ipv6/ip6_output.c:126 __ip6_finish_output+0x60f/0x7c0 net/ipv6/ip6_output.c:197 ip6_finish_output+0x31/0x210 net/ipv6/ip6_output.c:207 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip6_output+0x1f7/0x4d0 net/ipv6/ip6_output.c:230 dst_output include/net/dst.h:444 [inline] NF_HOOK include/linux/netfilter.h:305 [inline] ndisc_send_skb+0x73e/0xc90 net/ipv6/ndisc.c:509 ndisc_send_rs+0x532/0x6a0 net/ipv6/ndisc.c:703 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3978 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 __do_softirq+0x26d/0x5bf kernel/softirq.c:565 invoke_softirq kernel/softirq.c:425 [inline] __irq_exit_rcu+0x50/0xf0 kernel/softirq.c:648 irq_exit_rcu+0x9/0x10 kernel/softirq.c:660 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:finish_task_switch+0x16f/0x7b0 kernel/sched/core.c:5024 Code: 74 08 4c 89 ff e8 b1 88 65 00 49 8b 1f 48 85 db 4c 8b 6d c0 0f 85 ce 00 00 00 4c 89 e7 e8 99 aa 98 03 fb 49 8d 9d 38 0b 00 00 <48> 89 d8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 0f b6 04 30 RSP: 0018:ffffc900012af320 EFLAGS: 00000282 RAX: 0000000080000001 RBX: ffff888110f41ef8 RCX: 0000000000000002 RDX: 0000000040000002 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffffc900012af370 R08: ffffffff81921469 R09: fffffbfff0e52e2b R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f71378c0 R13: ffff888110f413c0 R14: 1ffff1103ee27081 R15: ffff8881f7138408 context_switch kernel/sched/core.c:5155 [inline] __schedule+0xcd4/0x1590 kernel/sched/core.c:6512 preempt_schedule_common+0x9b/0xf0 kernel/sched/core.c:6688 preempt_schedule+0xd9/0xe0 kernel/sched/core.c:6713 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34 try_to_wake_up+0x6ee/0x1160 kernel/sched/core.c:4259 wake_up_process kernel/sched/core.c:4322 [inline] wake_up_q+0xf0/0x1d0 kernel/sched/core.c:972 futex_wake+0x821/0xc80 kernel/futex/core.c:1706 do_futex+0x1310/0x37f0 kernel/futex/core.c:4000 __do_sys_futex kernel/futex/core.c:4072 [inline] __se_sys_futex+0x37b/0x3e0 kernel/futex/core.c:4053 __x64_sys_futex+0xe5/0x100 kernel/futex/core.c:4053 x64_sys_call+0x561/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:203 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fd3d598cef9 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:00007fd3d45e60e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007fd3d5b46060 RCX: 00007fd3d598cef9 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fd3d5b46064 RBP: 00007fd3d5b46058 R08: 00007fff3851a0b0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd3d5b46064 R13: 0000000000000000 R14: 00007fff384c1fd0 R15: 00007fff384c20b8 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 714 Comm: syz.2.89 Not tainted 5.15.157-syzkaller-00897-g53be7c8abe11 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:perf_trace_msr_trace_class+0x379/0x420 arch/x86/include/asm/msr-trace.h:21 Code: 25 28 00 00 00 48 3b 84 24 a0 00 00 00 0f 85 af 00 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 8d 8c 24 80 00 00 00 <80> e1 07 80 c1 03 38 c1 0f 8c 45 fd ff ff 48 8d bc 24 80 00 00 00 RSP: 0018:ffffc90000007140 EFLAGS: 00000002 RAX: 0000000000000004 RBX: 1ffff92000000e38 RCX: ffffc900000071c0 RDX: 0000000000010102 RSI: 0000000000000838 RDI: ffffffff86d9e0c0 RBP: ffffc90000007230 R08: ffffffff8285e999 R09: fffffbfff0e52d36 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888110974d18 R13: dffffc0000000000 R14: ffffc900000071a0 R15: 1ffff92000000e34 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31c1cff8 CR3: 000000013cd88000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: trace_write_msr arch/x86/include/asm/msr-trace.h:45 [inline] do_trace_write_msr+0xca/0x120 arch/x86/lib/msr.c:119 native_write_msr arch/x86/include/asm/msr.h:157 [inline] wrmsr arch/x86/include/asm/msr.h:263 [inline] native_apic_msr_write+0x46/0x50 arch/x86/include/asm/apic.h:208 apic_write arch/x86/include/asm/apic.h:395 [inline] lapic_next_event+0x5f/0x70 arch/x86/kernel/apic/apic.c:468 clockevents_program_event+0x1c1/0x300 kernel/time/clockevents.c:334 tick_program_event+0x9f/0x120 kernel/time/tick-oneshot.c:44 hrtimer_interrupt+0x625/0xaa0 kernel/time/hrtimer.c:1824 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline] __sysvec_apic_timer_interrupt+0xfd/0x3c0 arch/x86/kernel/apic/apic.c:1102 sysvec_apic_timer_interrupt+0x44/0xc0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:arch_stack_walk+0x105/0x140 arch/x86/kernel/stacktrace.c:25 Code: 83 bd 70 ff ff ff 00 74 32 48 8d 9d 70 ff ff ff 48 89 df e8 cd 8c 05 00 48 85 c0 74 1e 4c 89 f7 48 89 c6 41 ff d5 84 c0 74 11 <48> 89 df e8 e3 8d 05 00 83 bd 70 ff ff ff 00 75 d5 65 48 8b 04 25 RSP: 0018:ffffc90000007540 EFLAGS: 00000202 RAX: 0000000000000001 RBX: ffffc90000007540 RCX: 0000000000007501 RDX: dffffc0000000000 RSI: ffffffff8160b36b RDI: ffffc9000000762c RBP: ffffc900000075d0 R08: ffffc90000007628 R09: 0000000000000008 R10: ffffc90000007630 R11: dffffc0000000001 R12: ffff888118b662c0 R13: ffffffff815f87f0 R14: ffffc90000007620 R15: 0000000000000000 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_kmalloc+0xdb/0x110 mm/kasan/common.c:512 __kasan_kmalloc+0x9/0x10 mm/kasan/common.c:521 kasan_kmalloc include/linux/kasan.h:227 [inline] kmem_cache_alloc_trace+0x115/0x210 mm/slub.c:3267 kmalloc include/linux/slab.h:603 [inline] dst_cow_metrics_generic+0x55/0x1c0 net/core/dst.c:199 dst_metrics_write_ptr include/net/dst.h:118 [inline] dst_metric_set include/net/dst.h:179 [inline] icmp6_dst_alloc+0x385/0x560 net/ipv6/route.c:3285 ndisc_send_skb+0x27f/0xc90 net/ipv6/ndisc.c:489 ndisc_send_rs+0x532/0x6a0 net/ipv6/ndisc.c:703 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3978 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 __do_softirq+0x26d/0x5bf kernel/softirq.c:565 invoke_softirq kernel/softirq.c:425 [inline] __irq_exit_rcu+0x50/0xf0 kernel/softirq.c:648 irq_exit_rcu+0x9/0x10 kernel/softirq.c:660 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:finish_task_switch+0x172/0x7b0 kernel/sched/core.c:5024 Code: 89 ff e8 b1 88 65 00 49 8b 1f 48 85 db 4c 8b 6d c0 0f 85 ce 00 00 00 4c 89 e7 e8 99 aa 98 03 fb 49 8d 9d 38 0b 00 00 48 89 d8 <48> c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 0f b6 04 30 84 c0 0f RSP: 0018:ffffc90000b47080 EFLAGS: 00000282 RAX: ffff888118b66df8 RBX: ffff888118b66df8 RCX: 0000000000000002 RDX: 0000000040000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffffc90000b470d0 R08: ffffffff81921469 R09: fffffbfff0e52e2b R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f70378c0 R13: ffff888118b662c0 R14: 1ffff1103ee07081 R15: ffff8881f7038408 context_switch kernel/sched/core.c:5155 [inline] __schedule+0xcd4/0x1590 kernel/sched/core.c:6512 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:6916 irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:398 irqentry_exit+0x30/0x40 kernel/entry/common.c:432 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:arch_stack_walk+0xeb/0x140 arch/x86/kernel/stacktrace.c:26 Code: 0e 00 00 eb 03 48 89 e9 48 8d bd 70 ff ff ff 4c 89 e6 4c 89 fa e8 b5 9c 05 00 83 bd 70 ff ff ff 00 74 32 48 8d 9d 70 ff ff ff <48> 89 df e8 cd 8c 05 00 48 85 c0 74 1e 4c 89 f7 48 89 c6 41 ff d5 RSP: 0018:ffffc90000b47360 EFLAGS: 00000202 RAX: 0000000000b47301 RBX: ffffc90000b47360 RCX: 0000000000b47301 RDX: 1ffff92000168e6e RSI: ffffc90000b47b60 RDI: ffffc90000b473b8 RBP: ffffc90000b473f0 R08: ffffc90000b47448 R09: 0000000000000009 R10: ffffc90000b47450 R11: dffffc0000000001 R12: ffff888118b662c0 R13: ffffffff815f87f0 R14: ffffc90000b47440 R15: 0000000000000000 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 save_stack+0xf6/0x1e0 mm/page_owner.c:139 __reset_page_owner+0x36/0x190 mm/page_owner.c:156 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:408 [inline] kcov_close+0x2b/0x50 kernel/kcov.c:510 __fput+0x3fe/0x910 fs/file_table.c:280 ____fput+0x15/0x20 fs/file_table.c:308 task_work_run+0x129/0x190 kernel/task_work.c:164 exit_task_work include/linux/task_work.h:32 [inline] do_exit+0xc48/0x2ca0 kernel/exit.c:878 do_group_exit+0x141/0x310 kernel/exit.c:1000 get_signal+0x7a3/0x1630 kernel/signal.c:2896 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+0x55/0xc0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0033:0x7f12d2d43ef9 Code: Unable to access opcode bytes at RIP 0x7f12d2d43ecf. RSP: 002b:00007f12d19be038 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 00007f12d2efcf80 RCX: 00007f12d2d43ef9 RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000007 RBP: 00007f12d2db6046 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f12d2efcf80 R15: 00007ffe8006de68