watchdog: BUG: soft lockup - CPU#1 stuck for 243s! [syz.7.59:907]
Modules linked in:
CPU: 1 PID: 907 Comm: syz.7.59 Not tainted 5.15.169-syzkaller-00127-gfa1d8b6c5d4d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:stack_trace_consume_entry+0x1/0x290 kernel/stacktrace.c:83
Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 7b ff ff ff 48 89 df e8 d0 38 53 00 e9 6e ff ff ff e8 a6 a1 81 03 66 0f 1f 44 00 00 55 <48> 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 20 48 89 fb 48 ba 00
RSP: 0000:ffffc90000be6f30 EFLAGS: 00000286
RAX: ffffffff8160ae3a RBX: ffffc90000be6f40 RCX: 0000000000be6f01
RDX: 1ffff9200017cdea RSI: ffffffff8160ae3a RDI: ffffc90000be7020
RBP: ffffc90000be6fd0 R08: ffffc90000be7028 R09: 000000000000000d
R10: ffffc90000be7030 R11: dffffc0000000001 R12: ffff888113b013c0
R13: ffffffff815f85e0 R14: ffffc90000be7020 R15: 0000000000000000
FS:  00007fb9ab2396c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2fb1cff8 CR3: 00000001289b3000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 save_stack+0xf6/0x1e0 mm/page_owner.c:139
 __set_page_owner+0x28/0x2e0 mm/page_owner.c:200
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x1a3/0x1b0 mm/page_alloc.c:2605
 prep_new_page+0x1b/0x110 mm/page_alloc.c:2611
 get_page_from_freelist+0x3550/0x35d0 mm/page_alloc.c:4485
 __alloc_pages+0x27e/0x8f0 mm/page_alloc.c:5779
 allocate_slab mm/slub.c:1932 [inline]
 new_slab+0x9a/0x4e0 mm/slub.c:1995
 ___slab_alloc+0x39e/0x830 mm/slub.c:3028
 __slab_alloc+0x4a/0x90 mm/slub.c:3115
 slab_alloc_node mm/slub.c:3206 [inline]
 slab_alloc mm/slub.c:3248 [inline]
 kmem_cache_alloc+0x134/0x200 mm/slub.c:3253
 dst_alloc+0x164/0x1e0 net/core/dst.c:92
 ip6_dst_alloc net/ipv6/route.c:342 [inline]
 icmp6_dst_alloc+0xfc/0x560 net/ipv6/route.c:3275
 ndisc_send_skb+0x27f/0xc90 net/ipv6/ndisc.c:491
 ndisc_send_rs+0x532/0x6a0 net/ipv6/ndisc.c:705
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3979
 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
 handle_softirqs+0x25e/0x5c0 kernel/softirq.c:565
 __do_softirq kernel/softirq.c:603 [inline]
 invoke_softirq kernel/softirq.c:425 [inline]
 __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:652
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:664
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0x58/0xc0 arch/x86/kernel/apic/apic.c:1108
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0033:0x7fb9acbc1f19
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:00007fb9ab239058 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007fb9acd87fa0 RCX: 00007fb9acbc1f19
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000005
RBP: 00007fb9acc35986 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fb9acd87fa0 R15: 00007ffdc555c978
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 575 Comm: syz.8.25 Not tainted 5.15.169-syzkaller-00127-gfa1d8b6c5d4d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:irq_exit_rcu+0x1/0x10 kernel/softirq.c:663
Code: 84 0b 00 5b 41 5e 5d c3 89 d9 80 e1 07 80 c1 03 38 c1 7c c5 48 89 df e8 ad 99 6f 00 eb bb 66 2e 0f 1f 84 00 00 00 00 00 90 55 <48> 89 e5 e8 07 00 00 00 5d c3 0f 1f 44 00 00 55 48 89 e5 53 fa 65
RSP: 0018:ffffc90000006a78 EFLAGS: 00000082
RAX: 0000000000000000 RBX: ffffc90000006aa8 RCX: dffffc0000000000
RDX: 0000000000010100 RSI: ffffffff85470420 RDI: ffffffff85a34540
RBP: ffffc90000006a98 R08: ffffffff8160eff0 R09: ffffffff8163d20d
R10: 0000000000000002 R11: ffff888117cd4f00 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f968d410244 CR3: 0000000006a0f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:is_last_ftrace_frame arch/x86/kernel/unwind_frame.c:135 [inline]
RIP: 0010:is_last_task_frame arch/x86/kernel/unwind_frame.c:157 [inline]
RIP: 0010:unwind_next_frame+0x1b3/0x700 arch/x86/kernel/unwind_frame.c:266
Code: 00 74 1a 48 89 df 48 89 4d a0 e8 d8 ae 7d 00 48 8b 4d a0 48 ba 00 00 00 00 00 fc ff df 48 3b 0b 48 8b 5d d0 0f 84 c4 00 00 00 <49> 8d 85 30 ff ff ff 48 39 c3 0f 85 56 01 00 00 48 89 d8 48 c1 e8
RSP: 0018:ffffc90000006b58 EFLAGS: 00000287
RAX: ffffc90001037f40 RBX: ffffc90001037618 RCX: 0000000000006c01
RDX: dffffc0000000000 RSI: ffffffff81b7af96 RDI: ffffc90001037f48
RBP: ffffc90000006bd0 R08: ffffc90000006cc8 R09: 0000000000000025
R10: ffffc90000006cd0 R11: dffffc0000000001 R12: 0000000000000000
R13: ffffc90001038000 R14: ffffc90000006be0 R15: 1ffff92000000d7c
 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
 packet_rcv+0x160/0x1150 net/packet/af_packet.c:2257
 dev_queue_xmit_nit+0x9a4/0xa40 net/core/dev.c:2350
 xmit_one net/core/dev.c:3620 [inline]
 dev_hard_start_xmit+0x149/0x620 net/core/dev.c:3641
 sch_direct_xmit+0x298/0x9b0 net/sched/sch_generic.c:342
 __dev_xmit_skb net/core/dev.c:3856 [inline]
 __dev_queue_xmit+0x15b6/0x2e80 net/core/dev.c:4225
 dev_queue_xmit+0x17/0x20 net/core/dev.c:4293
 neigh_hh_output include/net/neighbour.h:501 [inline]
 neigh_output include/net/neighbour.h:515 [inline]
 ip_finish_output2+0xb9f/0xf60 net/ipv4/ip_output.c:228
 __ip_finish_output+0x162/0x360
 ip_finish_output+0x31/0x210 net/ipv4/ip_output.c:316
 NF_HOOK_COND include/linux/netfilter.h:294 [inline]
 ip_output+0x1d6/0x420 net/ipv4/ip_output.c:430
 dst_output include/net/dst.h:444 [inline]
 ip_local_out net/ipv4/ip_output.c:126 [inline]
 __ip_queue_xmit+0x1105/0x1c20 net/ipv4/ip_output.c:532
 ip_queue_xmit+0x4c/0x70 net/ipv4/ip_output.c:546
 __tcp_transmit_skb+0x1e84/0x3920 net/ipv4/tcp_output.c:1402
 __tcp_send_ack+0x303/0x710 net/ipv4/tcp_output.c:4010
 tcp_send_ack+0x3b/0x60 net/ipv4/tcp_output.c:4016
 tcp_delack_timer_handler+0x469/0x7b0 net/ipv4/tcp_timer.c:314
 tcp_delack_timer+0x111/0x230 net/ipv4/tcp_timer.c:341
 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
 handle_softirqs+0x25e/0x5c0 kernel/softirq.c:565
 __do_softirq kernel/softirq.c:603 [inline]
 invoke_softirq kernel/softirq.c:425 [inline]
 __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:652
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:664
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:unwind_next_frame+0x43/0x700 arch/x86/kernel/unwind_frame.c:263
Code: 00 00 fc ff df 49 89 ff 49 c1 ef 03 41 0f b6 04 17 84 c0 0f 85 82 05 00 00 41 83 3e 00 0f 84 67 05 00 00 49 8d 5e 58 48 89 d8 <48> c1 e8 03 48 89 45 a8 80 3c 10 00 74 12 48 89 df e8 17 b0 7d 00
RSP: 0018:ffffc900010372d8 EFLAGS: 00000202
RAX: ffffc900010373b8 RBX: ffffc900010373b8 RCX: 0000000001037301
RDX: dffffc0000000000 RSI: ffffffff81428138 RDI: ffffc90001037360
RBP: ffffc90001037350 R08: ffffc90001037448 R09: 0000000000000009
R10: ffffc90001037450 R11: dffffc0000000001 R12: ffff888117cd4f00
R13: ffffffff815f85e0 R14: ffffc90001037360 R15: 1ffff92000206e6c
 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: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:417 [inline]
 kcov_close+0x2b/0x50 kernel/kcov.c:519
 __fput+0x228/0x8c0 fs/file_table.c:280
 ____fput+0x15/0x20 fs/file_table.c:308
 task_work_run+0x129/0x190 kernel/task_work.c:188
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0xc48/0x2ca0 kernel/exit.c:880
 do_group_exit+0x141/0x310 kernel/exit.c:1002
 get_signal+0x7a3/0x1630 kernel/signal.c:2907
 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
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x26/0x160 kernel/entry/common.c:307
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f18c5ca2f19
Code: Unable to access opcode bytes at RIP 0x7f18c5ca2eef.
RSP: 002b:00007f18c431a058 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007f18c5e68fa0 RCX: 00007f18c5ca2f19
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000005
RBP: 00007f18c5d16986 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f18c5e68fa0 R15: 00007ffec1bcc0c8
 </TASK>