watchdog: BUG: soft lockup - CPU#1 stuck for 122s! [syz.7.3911:13267] Modules linked in: CPU: 1 PID: 13267 Comm: syz.7.3911 Tainted: G W 5.10.226-syzkaller-00184-g139a6bb26d9d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:__module_address+0x18/0x2d0 kernel/module.c:4737 Code: 5d 41 5e 41 5f 5d c3 e8 ea 14 a0 ff eb e7 0f 1f 40 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 10 48 39 3d 60 53 00 05 <0f> 87 49 02 00 00 49 89 fc 48 39 3d 58 53 00 05 73 16 e9 38 02 00 RSP: 0000:ffffc900001703f0 EFLAGS: 00000286 RAX: 0000000000000102 RBX: 0000000000000000 RCX: ffffffff8708c903 RDX: dffffc0000000000 RSI: ffffffff856027a0 RDI: 0000000000000000 RBP: ffffc90000170428 R08: ffffc900001705a8 R09: 000000000000001a R10: ffffc900001705b0 R11: dffffc0000000001 R12: ffff888124312780 R13: ffffffff8159c760 R14: 0000000000000000 R15: 1ffff9200002e0a1 FS: 00007fa1c5d6d6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d319ff8 CR3: 000000014c122000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __module_text_address kernel/module.c:4779 [inline] is_module_text_address+0x22/0x140 kernel/module.c:4764 kernel_text_address kernel/extable.c:145 [inline] __kernel_text_address+0x89/0x110 kernel/extable.c:105 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_slab_alloc+0xb1/0xe0 mm/kasan/common.c:463 kasan_slab_alloc include/linux/kasan.h:244 [inline] slab_post_alloc_hook+0x61/0x2f0 mm/slab.h:583 slab_alloc_node mm/slub.c:2947 [inline] slab_alloc mm/slub.c:2955 [inline] kmem_cache_alloc+0x168/0x2e0 mm/slub.c:2960 dst_alloc+0x17d/0x590 net/core/dst.c:93 ip6_dst_alloc net/ipv6/route.c:340 [inline] icmp6_dst_alloc+0xfc/0x560 net/ipv6/route.c:3164 ndisc_send_skb+0x25a/0xc00 net/ipv6/ndisc.c:491 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 __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:preempt_schedule_irq+0xc2/0x140 kernel/sched/core.c:5065 Code: 4c 89 e7 e8 60 8d f6 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 94 56 97 fc fb bf 01 00 00 00 89 e6 ff ff fa bf 01 00 00 00 e8 1e 58 97 fc 65 48 8b 1d 06 a4 RSP: 0000:ffffc90001cffd60 EFLAGS: 00000246 RAX: 1ffff11024862636 RBX: 1ffff9200039ffb0 RCX: ffffffff84b2f100 RDX: 1ffff110248624f4 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffffc90001cffdf0 R08: ffffffff87085048 R09: ffffffff87085058 R10: ffffffff87085050 R11: ffffffff87085043 R12: ffffc90001cffd80 R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff9200039ffac 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:exit_to_user_mode_loop+0x41/0xd0 kernel/entry/common.c:159 Code: 89 fe eb 22 e8 50 4a 52 00 e8 fb ad f0 00 fa 65 48 8b 05 d2 f3 a8 7e 48 8b 18 f7 c3 0e 30 08 00 0f 84 87 00 00 00 fb f6 c3 08 <74> 05 e8 58 49 58 03 f7 c3 00 10 00 00 74 08 4c 89 f7 e8 d8 6f 34 RSP: 0000:ffffc90001cffee0 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000008 RCX: ffff888124312780 RDX: 1ffff110248624f4 RSI: 0000000000000008 RDI: ffffc90001cfff58 RBP: ffffc90001cffef0 R08: ffffffff87085048 R09: ffffffff87085058 R10: ffffffff87085050 R11: ffffffff87085043 R12: ffffffff84c00c7a R13: 0000000000000000 R14: ffffc90001cfff58 R15: 0000000000000000 exit_to_user_mode_prepare kernel/entry/common.c:199 [inline] irqentry_exit_to_user_mode+0x4e/0x80 kernel/entry/common.c:287 irqentry_exit+0x12/0x60 kernel/entry/common.c:375 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: 0033:0x7fa1c76f6809 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:00007fa1c5d6d0e8 EFLAGS: 00000246 RAX: 0000000000000001 RBX: 00007fa1c78bbfa8 RCX: 00007fa1c76f6809 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fa1c78bbfac RBP: 00007fa1c78bbfa0 R08: 00007ffc84ef30b0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa1c78bbfac R13: 0000000000000000 R14: 00007ffc84e936c0 R15: 00007ffc84e937a8 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 11888 Comm: syz.2.3702 Tainted: G W 5.10.226-syzkaller-00184-g139a6bb26d9d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:hrtimer_get_expires include/linux/hrtimer.h:281 [inline] RIP: 0010:hrtimer_forward+0x39/0x2c0 kernel/time/hrtimer.c:940 Code: ec 30 49 89 d7 49 89 f5 49 89 fc 49 be 00 00 00 00 00 fc ff df e8 87 c1 0f 00 49 8d 5c 24 18 48 89 d8 48 c1 e8 03 48 89 45 b8 <42> 80 3c 30 00 74 08 48 89 df e8 48 5b 4d 00 48 89 5d c0 48 8b 1b RSP: 0018:ffffc90000006ed8 EFLAGS: 00000806 RAX: 1ffff1102666832e RBX: ffff888133341970 RCX: ffff888133640000 RDX: 0000000000010102 RSI: 0000029f6c80cd01 RDI: ffff888133341958 RBP: ffffc90000006f30 R08: ffffffff815b75ae R09: ffffed103ee0a5f7 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888133341958 R13: 0000029f6c80cd01 R14: dffffc0000000000 R15: 0000000000002710 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fadfa067000 CR3: 000000010d259000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: hrtimer_forward_now include/linux/hrtimer.h:504 [inline] perf_swevent_hrtimer+0x4b8/0x560 kernel/events/core.c:10468 __run_hrtimer kernel/time/hrtimer.c:1585 [inline] __hrtimer_run_queues+0x3d7/0xa50 kernel/time/hrtimer.c:1649 hrtimer_interrupt+0x39a/0x8b0 kernel/time/hrtimer.c:1711 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:stack_trace_consume_entry+0x13f/0x290 kernel/stacktrace.c:94 Code: 4c 89 fe 4c 89 f2 48 89 33 41 8b 1a 41 0f b6 04 14 84 c0 0f 85 37 01 00 00 41 3b 18 0f 92 c0 48 83 c4 20 5b 41 5c 41 5d 41 5e <41> 5f 5d c3 44 89 d1 80 e1 07 80 c1 03 38 c1 0f 8c e2 fe ff ff 4d RSP: 0018:ffffc900000074a8 EFLAGS: 00000286 RAX: 0000000000000001 RBX: ffffc900000074c0 RCX: 0000000000007501 RDX: dffffc0000000000 RSI: ffffffff84ad71a2 RDI: ffffc900000075ac RBP: ffffc900000074b0 R08: ffffc900000075a8 R09: 000000000000002a R10: ffffc900000075b0 R11: dffffc0000000001 R12: ffff888133640000 R13: ffffffff8159c760 R14: ffffc900000075a0 R15: 1ffff92000000eb6 arch_stack_walk+0x101/0x140 arch/x86/kernel/stacktrace.c:27 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_slab_alloc+0xb1/0xe0 mm/kasan/common.c:463 kasan_slab_alloc include/linux/kasan.h:244 [inline] slab_post_alloc_hook+0x61/0x2f0 mm/slab.h:583 slab_alloc_node mm/slub.c:2947 [inline] slab_alloc mm/slub.c:2955 [inline] kmem_cache_alloc+0x168/0x2e0 mm/slub.c:2960 dst_alloc+0x17d/0x590 net/core/dst.c:93 ip6_dst_alloc net/ipv6/route.c:340 [inline] icmp6_dst_alloc+0xfc/0x560 net/ipv6/route.c:3164 ndisc_send_skb+0x25a/0xc00 net/ipv6/ndisc.c:491 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 __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:preempt_count_sub+0x0/0x160 kernel/sched/core.c:4481 Code: c1 08 ee e3 86 80 e1 07 80 c1 03 38 c1 0f 8c 78 ff ff ff 48 c7 c7 08 ee e3 86 e8 fb 34 5f 00 e9 67 ff ff ff 66 0f 1f 44 00 00 <55> 48 89 e5 41 56 53 89 fb 48 c7 c0 00 c9 08 87 48 c1 e8 03 49 be RSP: 0018:ffffc90000f67280 EFLAGS: 00000246 RAX: 0000000000000001 RBX: ffff8881f7055fc0 RCX: dffffc0000000000 RDX: 0000000000000001 RSI: 0000000000000008 RDI: 0000000000000001 RBP: ffffc90000f67290 R08: dffffc0000000000 R09: ffffed10266c8001 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888133640000 R13: dffffc0000000000 R14: ffff8881f7055fc0 R15: ffff888133640000 rq_unlock_irq kernel/sched/sched.h:1364 [inline] __schedule+0xcbc/0x1330 kernel/sched/core.c:4807 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:jhash2 include/linux/jhash.h:135 [inline] RIP: 0010:hash_stack lib/stackdepot.c:181 [inline] RIP: 0010:__stack_depot_save+0x126/0x4d0 lib/stackdepot.c:297 Code: c1 c2 13 44 29 d8 41 31 c2 41 01 f3 44 29 d6 45 89 d4 41 c1 c4 04 41 31 f4 45 01 da 41 83 c0 fd 49 83 c1 0c 41 83 f8 03 77 8f <41> 83 f8 01 75 11 eb 23 49 89 f9 45 89 e3 45 89 e2 41 83 f8 01 74 RSP: 0018:ffffc90000f67528 EFLAGS: 00000297 RAX: 000000002e960619 RBX: 000000002238fbe0 RCX: 0000000000000001 RDX: 0000000000002800 RSI: 000000001d7d70ee RDI: ffffc90000f675e0 RBP: ffffc90000f67580 R08: 0000000000000002 R09: ffffc90000f67658 R10: 0000000079d14c0c R11: 00000000c7ff8871 R12: 0000000000614955 R13: 0000000000000010 R14: dffffc0000000001 R15: ffffffff84e005bb stack_depot_save+0xe/0x10 lib/stackdepot.c:384 save_stack+0x1af/0x240 mm/page_owner.c:159 __reset_page_owner+0x36/0x150 mm/page_owner.c:174 reset_page_owner include/linux/page_owner.h:28 [inline] free_pages_prepare mm/page_alloc.c:1349 [inline] free_pcp_prepare mm/page_alloc.c:1421 [inline] free_unref_page_prepare+0x2ae/0x2d0 mm/page_alloc.c:3336 free_unref_page mm/page_alloc.c:3391 [inline] free_the_page+0x9e/0x370 mm/page_alloc.c:5407 __free_pages+0x67/0xc0 mm/page_alloc.c:5418 __vunmap+0x7bc/0x8f0 mm/vmalloc.c:2301 __vfree mm/vmalloc.c:2349 [inline] vfree+0x5c/0x80 mm/vmalloc.c:2380 kcov_put kernel/kcov.c:408 [inline] kcov_close+0x2b/0x50 kernel/kcov.c:510 __fput+0x33d/0x7b0 fs/file_table.c:281 ____fput+0x15/0x20 fs/file_table.c:314 task_work_run+0x129/0x190 kernel/task_work.c:189 exit_task_work include/linux/task_work.h:33 [inline] do_exit+0xc83/0x2a50 kernel/exit.c:863 do_group_exit+0x141/0x310 kernel/exit.c:985 get_signal+0x10a0/0x1410 kernel/signal.c:2790 arch_do_signal_or_restart+0xbd/0x17c0 arch/x86/kernel/signal.c:805 handle_signal_work kernel/entry/common.c:145 [inline] exit_to_user_mode_loop+0x9b/0xd0 kernel/entry/common.c:169 exit_to_user_mode_prepare kernel/entry/common.c:199 [inline] syscall_exit_to_user_mode+0xa2/0x1a0 kernel/entry/common.c:274 do_syscall_64+0x40/0x70 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7fad49c77809 Code: Unable to access opcode bytes at RIP 0x7fad49c777df. RSP: 002b:00007fad482ee058 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: 0000000000000000 RBX: 00007fad49e3cfa0 RCX: 00007fad49c77809 RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000003 RBP: 00007fad49cea93e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fad49e3cfa0 R15: 00007ffcee1ae768