watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz.4.940:3953]
Modules linked in:
CPU: 1 PID: 3953 Comm: syz.4.940 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:orc_ip arch/x86/kernel/unwind_orc.c:27 [inline]
RIP: 0010:__orc_find arch/x86/kernel/unwind_orc.c:49 [inline]
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:175 [inline]
RIP: 0010:unwind_next_frame+0x612/0x1ea0 arch/x86/kernel/unwind_orc.c:438
Code: e8 3f 48 01 c8 48 83 e0 fe 49 8d 5c 45 00 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 75 27 48 63 03 <48> 01 d8 48 8d 4b 04 4c 39 e0 4c 0f 46 e9 48 8d 43 fc 4c 0f 47 f8
RSP: 0000:ffff8881f6f08e20 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: fffffffffaeb187e RBX: ffffffff865134f4 RCX: dffffc0000000000
RDX: ffffffff865134e8 RSI: ffffffff867c1bae RDI: 0000000000000001
RBP: ffff8881f6f09110 R08: 0000000000000012 R09: ffff8881f6f09170
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff813c4d44
R13: ffffffff865134e8 R14: ffffffff865134e8 R15: ffffffff86513504
FS:  00007fe6470c26c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000004 CR3: 00000001ee946000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 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_set_free_info mm/kasan/common.c:345 [inline]
 __kasan_slab_free+0x1b5/0x270 mm/kasan/common.c:487
 slab_free_hook mm/slub.c:1455 [inline]
 slab_free_freelist_hook mm/slub.c:1494 [inline]
 slab_free mm/slub.c:3080 [inline]
 kfree+0x123/0x370 mm/slub.c:4071
 skb_release_all net/core/skbuff.c:675 [inline]
 __kfree_skb net/core/skbuff.c:689 [inline]
 consume_skb+0xa5/0x2a0 net/core/skbuff.c:849
 netlink_broadcast_filtered+0x115f/0x1280 net/netlink/af_netlink.c:1531
 netlink_broadcast net/netlink/af_netlink.c:1553 [inline]
 nlmsg_multicast include/net/netlink.h:968 [inline]
 nlmsg_notify+0xf7/0x1b0 net/netlink/af_netlink.c:2524
 neigh_cleanup_and_release+0x2b/0x210 net/core/neighbour.c:102
 neigh_del net/core/neighbour.c:198 [inline]
 neigh_remove_one+0x350/0x3b0 net/core/neighbour.c:219
 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:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x45/0x60 kernel/locking/spinlock.c:199
Code: 08 00 74 0c 48 c7 c7 90 3b eb 85 e8 35 01 43 fd 48 83 3d 9d 1e 9a 01 00 74 29 48 89 df e8 93 d6 fa fc 66 90 fb bf 01 00 00 00 <e8> 16 c3 f3 fc 65 8b 05 7b 70 b1 7b 85 c0 74 02 5b c3 e8 04 37 af
RSP: 0000:ffff8881d82bfdb0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000001 RBX: ffff8881f6f57b40 RCX: dffffc0000000000
RDX: 0000000000000001 RSI: 0000000000000008 RDI: 0000000000000001
RBP: ffff8881d82bfeb0 R08: dffffc0000000000 R09: ffffed103c489dc9
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8881e244ee40 R14: ffff8881e244ee40 R15: ffff8881e244eeb8
 rq_unlock_irq kernel/sched/sched.h:1270 [inline]
 __schedule+0xcff/0x1320 kernel/sched/core.c:4310
 schedule+0x12c/0x1d0 kernel/sched/core.c:4375
 exit_to_usermode_loop+0x43/0x1a0 arch/x86/entry/common.c:149
 prepare_exit_to_usermode+0x199/0x200 arch/x86/entry/common.c:194
 ret_from_intr+0x1c/0x1c
RIP: 0033:0x7fe647e40b99
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:00007fe6470c2048 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 00007fe647fcefa0 RCX: 00007fe647e40b99
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000005
RBP: 00007fe647ec177e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fe647fcefa0 R15: 00007fff8d47a8d8
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 497 Comm: syz.1.39 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:preempt_count_sub+0x2/0x160 kernel/sched/core.c:4035
Code: c7 c1 84 99 4b 86 80 e1 07 80 c1 03 38 c1 7c 80 48 c7 c7 84 99 4b 86 e8 fc 3d 4f 00 e9 6f ff ff ff 0f 1f 80 00 00 00 00 41 56 <53> 89 fb 48 c7 c0 c0 99 e9 86 48 c1 e8 03 49 be 00 00 00 00 00 fc
RSP: 0018:ffff8881f6e09498 EFLAGS: 00000092
RAX: 1ffff1103edc522f RBX: ffff8881ed40ee40 RCX: ffff8881ed40ee40
RDX: 0000000000010502 RSI: 0000000000010502 RDI: 0000000000010000
RBP: ffff8881f6e28e00 R08: ffffffff82316961 R09: ffffffff86e92018
R10: ffffffff86e92003 R11: 1ffffffff0dd2400 R12: 0000000000000000
R13: 0000000000000000 R14: ffff8881eb33f2f8 R15: dffffc0000000000
FS:  00007f0307d1c6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0308abbb6f CR3: 00000001c42b9000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 irq_exit+0x23/0x1c0 kernel/softirq.c:411
 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
RIP: 0010:queued_write_lock_slowpath+0x1a1/0x390 kernel/locking/qrwlock.c:79
Code: e8 c4 d2 47 00 eb 20 f3 90 42 0f b6 04 33 84 c0 74 15 44 89 f9 80 e1 07 80 c1 03 38 c1 7c 08 4c 89 ff e8 a2 d2 47 00 41 8b 07 <3d> 00 01 00 00 75 d6 43 0f b6 04 34 84 c0 75 53 c7 44 24 50 00 01
RSP: 0018:ffff8881f6e095c0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 00000000000001ff RBX: 1ffffffff0c7f8a5 RCX: ffffffff814c4b1b
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff863fc528
RBP: ffff8881f6e09670 R08: dffffc0000000000 R09: fffffbfff0c7f8a6
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1103edc12c2
R13: 00000000000000ff R14: dffffc0000000000 R15: ffffffff863fc528
 queued_write_lock include/asm-generic/qrwlock.h:95 [inline]
 __raw_write_lock_bh include/linux/rwlock_api_smp.h:204 [inline]
 _raw_write_lock_bh+0x10a/0x170 kernel/locking/spinlock.c:319
 neigh_forced_gc net/core/neighbour.c:237 [inline]
 neigh_alloc net/core/neighbour.c:430 [inline]
 ___neigh_create+0x202/0x1ae0 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:ffff8881eb33f3a0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 1ffff1103da81ef7 RBX: 1ffff1103d667e78 RCX: ffffffff84512a00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff8881eb33f428 R08: ffffffff82316a19 R09: ffffed103edcb135
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881eb33f3c0
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff1103d667e74
 retint_kernel+0x1b/0x1b
RIP: 0010:arch_stack_walk+0xed/0x140 arch/x86/kernel/stacktrace.c:26
Code: 0b 00 00 eb 03 48 89 e9 48 8d bd 70 ff ff ff 4c 89 e6 4c 89 fa e8 63 08 06 00 83 bd 70 ff ff ff 00 74 34 48 8d 9d 70 ff ff ff <48> 89 df e8 7b e4 05 00 48 85 c0 74 20 4c 89 f7 48 89 c6 31 d2 41
RSP: 0018:ffff8881eb33f4e0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000001 RBX: ffff8881eb33f4e0 RCX: 404276b6c0557700
RDX: ffff8881eb33f520 RSI: ffff8881eb33f160 RDI: 0000000000000001
RBP: ffff8881eb33f570 R08: dffffc0000000000 R09: ffff8881eb33f530
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881ed40ee40
R13: ffffffff8153aff0 R14: ffff8881eb33f5c0 R15: 0000000000000000
 stack_trace_save+0x118/0x1c0 kernel/stacktrace.c:123
 save_stack+0x95/0x880 mm/page_owner.c:122
 __reset_page_owner+0x1f/0x100 mm/page_owner.c:149
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1176 [inline]
 free_pcp_prepare mm/page_alloc.c:1233 [inline]
 free_unref_page_prepare+0x297/0x380 mm/page_alloc.c:3085
 free_unref_page mm/page_alloc.c:3134 [inline]
 free_the_page mm/page_alloc.c:4953 [inline]
 __free_pages+0xaf/0x140 mm/page_alloc.c:4961
 __vunmap+0x75b/0x890 mm/vmalloc.c:2260
 kcov_put kernel/kcov.c:396 [inline]
 kcov_close+0x27/0x50 kernel/kcov.c:495
 __fput+0x262/0x680 fs/file_table.c:281
 task_work_run+0x140/0x170 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0xcaf/0x2bc0 kernel/exit.c:859
 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: 0033:0x7f0308abbb99
Code: Bad RIP value.
RSP: 002b:00007f0307d1c0f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000000 RBX: 00007f0308c4a080 RCX: 00007f0308abbb99
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f0308c4a080
RBP: 00007f0308c4a078 R08: 00007f0307d1c6c0 R09: 00007f0307d1c6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0308c4a084
R13: 000000000000000b R14: 00007fff0519a770 R15: 00007fff0519a858