watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz.3.659:2205]
Modules linked in:
CPU: 1 PID: 2205 Comm: syz.3.659 Not tainted 5.4.276-syzkaller-00020-g4275fce9fe94 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:__read_once_size include/linux/compiler.h:268 [inline]
RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:31 [inline]
RIP: 0010:atomic_read include/asm-generic/atomic-instrumented.h:27 [inline]
RIP: 0010:refcount_read include/linux/refcount.h:134 [inline]
RIP: 0010:neigh_del net/core/neighbour.c:187 [inline]
RIP: 0010:neigh_remove_one+0x13f/0x3b0 net/core/neighbour.c:219
Code: e9 84 01 00 00 4d 8d 74 24 28 4c 89 f7 e8 49 54 ce 00 4c 89 fd 4d 8d 7c 24 30 4c 89 ff be 04 00 00 00 e8 14 23 11 fe 4c 89 f8 <48> c1 e8 03 0f b6 04 28 84 c0 0f 85 28 02 00 00 41 8b 2f bf 01 00
RSP: 0018:ffff8881f6f096e8 EFLAGS: 00000256 ORIG_RAX: ffffffffffffff13
RAX: ffff8881d94a8030 RBX: 1ffff1103b163f92 RCX: ffffffff8382ce6c
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8881d94a8030
RBP: dffffc0000000000 R08: dffffc0000000000 R09: ffffed103b295007
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881d94a8000
R13: ffff8881d8b1fc90 R14: ffff8881d94a8028 R15: ffff8881d94a8030
FS:  00007f1fac0466c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f962cd58d58 CR3: 0000000005e0e000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 neigh_forced_gc net/core/neighbour.c:252 [inline]
 neigh_alloc net/core/neighbour.c:430 [inline]
 ___neigh_create+0x3b3/0x1ae0 net/core/neighbour.c:592
 ip6_finish_output2+0x965/0x18e0 net/ipv6/ip6_output.c:141
 NF_HOOK_COND include/linux/netfilter.h:292 [inline]
 ip6_output+0x1b3/0x430 net/ipv6/ip6_output.c:248
 dst_output include/net/dst.h:438 [inline]
 NF_HOOK include/linux/netfilter.h:303 [inline]
 ndisc_send_skb+0x702/0xc30 net/ipv6/ndisc.c:509
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3954
 call_timer_fn+0x36/0x390 kernel/time/timer.c:1448
 expire_timers kernel/time/timer.c:1493 [inline]
 __run_timers+0x879/0xbe0 kernel/time/timer.c:1817
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1830
 __do_softirq+0x23b/0x6b7 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x195/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:539 [inline]
 smp_apic_timer_interrupt+0x11a/0x460 arch/x86/kernel/apic/apic.c:1149
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
 </IRQ>
RIP: 0010:preempt_schedule_irq+0xc2/0x140 kernel/sched/core.c:4558
Code: 4c 89 e7 e8 50 d0 43 fd f6 44 24 21 02 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 b4 90 f4 fc fb bf 01 00 00 00 <e8> b9 e6 ff ff fa bf 01 00 00 00 e8 1e 92 f4 fc 65 48 8b 1d 76 3f
RSP: 0018:ffff8881e7eb73a0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 1ffff1103e63890f RBX: 1ffff1103cfd6e78 RCX: ffffffff84512a00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff8881e7eb7438 R08: ffffffff82316a19 R09: ffffed103edeb135
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881e7eb73c0
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff1103cfd6e74
 retint_kernel+0x1b/0x1b
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x50 kernel/kcov.c:183
Code: 1f 84 00 00 00 00 00 0f 1f 00 be 0c 00 00 00 48 c7 c7 a0 a7 f1 85 e8 4f de 2f 00 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <48> 8b 04 24 65 48 8b 0d 74 54 9e 7e 65 8b 15 79 54 9e 7e f7 c2 00
RSP: 0018:ffff8881e7eb74f0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 8000000000000002 RCX: ffffffff8191c2b0
RDX: ffff8881f31c3f00 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffea0007748800 R08: ffffffff8191c2de R09: fffff94000ee9101
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffea0007748800
R13: 0000000000000000 R14: ffffea0007748808 R15: 1ffffd4000ee9101
 PageSwapCache include/linux/page-flags.h:385 [inline]
 free_swap_cache+0xd8/0x210 mm/swap_state.c:268
 free_pages_and_swap_cache+0x5e/0x90 mm/swap_state.c:296
 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:189 [inline]
 tlb_flush_mmu+0xc8/0x170 mm/mmu_gather.c:196
 zap_pte_range mm/memory.c:1173 [inline]
 zap_pmd_range mm/memory.c:1222 [inline]
 zap_pud_range mm/memory.c:1251 [inline]
 zap_p4d_range mm/memory.c:1272 [inline]
 unmap_page_range+0x1d29/0x2620 mm/memory.c:1293
 unmap_single_vma mm/memory.c:1338 [inline]
 unmap_vmas+0x355/0x4b0 mm/memory.c:1370
 exit_mmap+0x2bc/0x520 mm/mmap.c:3191
 __mmput+0x8e/0x2c0 kernel/fork.c:1101
 exit_mm kernel/exit.c:536 [inline]
 do_exit+0xc08/0x2bc0 kernel/exit.c:846
 do_group_exit+0x138/0x300 kernel/exit.c:982
 get_signal+0xdb1/0x1440 kernel/signal.c:2735
 do_signal+0xb0/0x11f0 arch/x86/kernel/signal.c:809
 exit_to_usermode_loop+0xc0/0x1a0 arch/x86/entry/common.c:159
 prepare_exit_to_usermode+0x199/0x200 arch/x86/entry/common.c:194
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7f1facdc4b99
Code: Bad RIP value.
RSP: 002b:00007f1fac046048 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007f1facf52fa0 RCX: 00007f1facdc4b99
RDX: 0000000020000780 RSI: 0000000000005452 RDI: 0000000000000003
RBP: 00007f1face4577e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f1facf52fa0 R15: 00007ffc7c14ece8
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3461 Comm: syz.3.1048 Not tainted 5.4.276-syzkaller-00020-g4275fce9fe94 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:check_kcov_mode kernel/kcov.c:153 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x13/0x50 kernel/kcov.c:187
Code: a7 f1 85 e8 4f de 2f 00 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 04 24 65 48 8b 0d 74 54 9e 7e 65 8b 15 79 54 9e 7e <f7> c2 00 01 1f 00 74 01 c3 8b 91 00 0a 00 00 83 fa 02 75 f4 48 8b
RSP: 0018:ffff8881f6e089b8 EFLAGS: 00000046
RAX: ffffffff817a1630 RBX: 1ffff1103edc116c RCX: ffff8881eab20000
RDX: 0000000000010102 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff8881f6e08ab0 R08: ffffffff817a1620 R09: ffff8881f6e08b00
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f6e08cc0
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff8881f6e08b64
FS:  00007f962cd9a6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f636f6ff0d6 CR3: 00000001e16ad000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 perf_prepare_sample+0x8d0/0x1500 kernel/events/core.c:6736
 __perf_event_output kernel/events/core.c:6807 [inline]
 perf_event_output_forward+0xde/0x1b0 kernel/events/core.c:6827
 __perf_event_overflow+0x1d7/0x360 kernel/events/core.c:8301
 perf_swevent_hrtimer+0x3fd/0x560 kernel/events/core.c:9688
 __run_hrtimer kernel/time/hrtimer.c:1581 [inline]
 __hrtimer_run_queues+0x3e9/0xb90 kernel/time/hrtimer.c:1643
 hrtimer_interrupt+0x38a/0x890 kernel/time/hrtimer.c:1705
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1122 [inline]
 smp_apic_timer_interrupt+0x110/0x460 arch/x86/kernel/apic/apic.c:1147
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:44 [inline]
RIP: 0010:unwind_next_frame+0x16f6/0x1ea0 arch/x86/kernel/unwind_orc.c:596
Code: 80 3c 38 00 74 05 e8 29 4c 64 00 4c 8b 73 38 48 8d 7b 08 48 89 f8 48 c1 e8 03 42 80 3c 38 00 74 05 e8 0e 4c 64 00 4c 8b 7b 08 <48> 83 c3 10 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80
RSP: 0018:ffff8881f6e09240 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 1ffff1103edc12a9 RBX: ffff8881f6e09540 RCX: 1ffff1103edc12a8
RDX: ffff8881f6e09580 RSI: ffff8881f6e091c0 RDI: ffff8881f6e09548
RBP: ffff8881f6e09530 R08: dffffc0000000000 R09: ffff8881f6e09590
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff0d66355
R13: ffffffff86b31aab R14: ffff8881c5fcfb78 R15: ffff8881c5fc8000
 arch_stack_walk+0x111/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x118/0x1c0 kernel/stacktrace.c:123
 save_stack mm/kasan/common.c:70 [inline]
 set_track mm/kasan/common.c:78 [inline]
 __kasan_kmalloc+0x171/0x210 mm/kasan/common.c:529
 slab_post_alloc_hook mm/slab.h:584 [inline]
 slab_alloc_node mm/slub.c:2829 [inline]
 slab_alloc mm/slub.c:2837 [inline]
 kmem_cache_alloc+0xd9/0x250 mm/slub.c:2842
 dst_alloc+0x154/0x4c0 net/core/dst.c:93
 ip6_dst_alloc net/ipv6/route.c:357 [inline]
 icmp6_dst_alloc+0xf1/0x550 net/ipv6/route.c:3183
 ndisc_send_skb+0x262/0xc30 net/ipv6/ndisc.c:489
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3954
 call_timer_fn+0x36/0x390 kernel/time/timer.c:1448
 expire_timers kernel/time/timer.c:1493 [inline]
 __run_timers+0x879/0xbe0 kernel/time/timer.c:1817
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1830
 __do_softirq+0x23b/0x6b7 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x195/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:539 [inline]
 smp_apic_timer_interrupt+0x11a/0x460 arch/x86/kernel/apic/apic.c:1149
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
 </IRQ>
RIP: 0010:__schedule+0xb72/0x1320 kernel/sched/core.c:4314
Code: 49 c7 04 04 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 84 24 a0 00 00 00 0f 85 67 04 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e <41> 5f 5d c3 48 8b 7c 24 20 48 8b 74 24 28 48 8d 94 24 80 00 00 00
RSP: 0018:ffff8881c5fcfac8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 034511dc8b281700 RBX: 1ffff11038bf9f60 RCX: 0000000000000002
RDX: 0000000040000002 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff8881c5fcfad0 R08: ffffffff81799679 R09: fffffbfff0c96e7b
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881c5fcfb00
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff1103d564095
 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:4558
 retint_kernel+0x1b/0x1b
RIP: 0010:uprobe_deny_signal+0x1/0x230 kernel/events/uprobes.c:1973
Code: ff 48 89 df e8 60 e3 15 00 e9 b1 fe ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 7c b6 4c 89 ff e8 46 e3 15 00 eb ac 0f 1f 40 00 55 <41> 57 41 56 41 55 41 54 53 50 49 bd 00 00 00 00 00 fc ff df e8 16
RSP: 0018:ffff8881c5fcfc20 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffffffff813e8428 RBX: ffff8881eab207a0 RCX: 0000000000040000
RDX: ffffc90005c3d000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffff8881eab20000 R08: dffffc0000000000 R09: ffff8881c5fcfe00
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff8881ea68a140 R15: ffff8881c5fcfe00
 get_signal+0xbd/0x1440 kernel/signal.c:2531
 do_signal+0xb0/0x11f0 arch/x86/kernel/signal.c:809
 exit_to_usermode_loop+0xc0/0x1a0 arch/x86/entry/common.c:159
 prepare_exit_to_usermode+0x199/0x200 arch/x86/entry/common.c:194
 ret_from_intr+0x1c/0x1c
RIP: 0033:0x7f962db18b99
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:00007f962cd9a048 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 00007f962dca6fa0 RCX: 00007f962db18b99
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000004
RBP: 00007f962db9977e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f962dca6fa0 R15: 00007ffcc4374f78