RBP: 00007fdb84de58ee R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fdb84f05f80 R15: 00007ffdb0dcd038
watchdog: BUG: soft lockup - CPU#0 stuck for 246s! [syz.2.1739:6266]
Modules linked in:
CPU: 0 PID: 6266 Comm: syz.2.1739 Tainted: G W 6.1.90-syzkaller-00002-g7003f6b36a9b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:unwind_next_frame+0x6/0x700 arch/x86/kernel/unwind_frame.c:265
Code: 41 5f 5d c3 44 89 f1 80 e1 07 80 c1 03 38 c1 7c 99 4c 89 f7 e8 eb ef 84 00 eb 8f 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 <41> 56 41 55 41 54 53 48 83 ec 50 49 89 fe 48 ba 00 00 00 00 00 fc
RSP: 0018:ffffc90000007688 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffc900000076a0 RCX: ffffffff877a1000
RDX: dffffc0000000000 RSI: ffffffff851d9a57 RDI: ffffc900000076a0
RBP: ffffc90000007690 R08: ffffc90000007788 R09: 0000000000000012
R10: ffffc90000007790 R11: dffffc0000000001 R12: ffff888124a81440
R13: ffffffff8165c3e0 R14: ffffc90000007780 R15: 0000000000000000
FS: 00007fdb85aa26c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f81aff8 CR3: 000000012acf3000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 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:45 [inline]
kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
kasan_save_alloc_info+0x1f/0x30 mm/kasan/generic.c:505
__kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:333
kasan_slab_alloc include/linux/kasan.h:202 [inline]
slab_post_alloc_hook+0x53/0x2c0 mm/slab.h:768
slab_alloc_node mm/slub.c:3421 [inline]
kmem_cache_alloc_node+0x18a/0x2d0 mm/slub.c:3466
__alloc_skb+0xcc/0x2d0 net/core/skbuff.c:505
alloc_skb include/linux/skbuff.h:1290 [inline]
ndisc_alloc_skb+0xf3/0x2d0 net/ipv6/ndisc.c:422
ndisc_send_rs+0x264/0x5f0 net/ipv6/ndisc.c:703
addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3984
call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1510
expire_timers kernel/time/timer.c:1555 [inline]
__run_timers+0x72a/0xa10 kernel/time/timer.c:1826
run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1839
__do_softirq+0x1d8/0x661 kernel/softirq.c:617
invoke_softirq kernel/softirq.c:472 [inline]
__irq_exit_rcu+0x50/0xf0 kernel/softirq.c:700
irq_exit_rcu+0x9/0x10 kernel/softirq.c:712
sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:schedule_debug kernel/sched/core.c:5985 [inline]
RIP: 0010:__schedule+0x125/0x1550 kernel/sched/core.c:6637
Code: 33 49 8d 5e 20 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 7a 40 9f fc 48 8b 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 <74> 08 48 89 df e8 61 40 9f fc 48 81 3b 9d 6e ac 57 0f 85 27 0f 00
RSP: 0018:ffffc90000ba7c80 EFLAGS: 00000246
RAX: 1ffff92000174000 RBX: ffffc90000ba0000 RCX: 1ffff92000174fa0
RDX: 1ffffffff0f2d200 RSI: ffffffff85c9fa20 RDI: ffffffff85c9f9e0
RBP: ffffc90000ba7d90 R08: ffffffff87969000 R09: ffffffff87969008
R10: ffffffff87969018 R11: ffffffff87969010 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff888124a81440 R15: ffff8881f7000000
preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:7056
raw_irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:396
irqentry_exit+0x30/0x40 kernel/entry/common.c:439
sysvec_irq_work+0x52/0xb0 arch/x86/kernel/irq_work.c:17
asm_sysvec_irq_work+0x1b/0x20 arch/x86/include/asm/idtentry.h:679
RIP: 0010:x64_sys_call+0x98/0x9a0 arch/x86/entry/syscall_64.c:33
Code: 5d c3 e8 3b 64 b3 00 5d c3 e8 c4 6c b2 00 5d c3 e8 4d 26 49 00 5d c3 e8 26 79 48 00 5d c3 e8 ff 35 2e 00 5d c3 e8 f8 89 ca 00 <5d> c3 e8 71 24 c5 00 5d c3 e8 8a 2a c5 00 5d c3 e8 83 53 c5 00 5d
RSP: 0018:ffffc90000ba7f20 EFLAGS: 00000286
RAX: 0000000000000000 RBX: ffffc90000ba7f30 RCX: 0000000000040000
RDX: ffffc900019cf000 RSI: 0000000000000056 RDI: 0000000000000057
RBP: ffffc90000ba7f20 R08: ffffffff81c63e56 R09: ffffed1022671b98
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000000 R14: ffffc90000ba7f58 R15: 0000000000000000
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fdb84d779f9
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:00007fdb85aa2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fdb84f05f80 RCX: 00007fdb84d779f9
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000004
RBP: 00007fdb84de58ee R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fdb84f05f80 R15: 00007ffdb0dcd038
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5914 Comm: syz.3.1720 Tainted: G W 6.1.90-syzkaller-00002-g7003f6b36a9b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:asm_sysvec_irq_work+0x0/0x20 arch/x86/include/asm/idtentry.h:675
Code: e8 15 e4 f8 ff e9 d0 03 00 00 0f 01 ca fc 6a ff e8 c5 02 00 00 48 89 c4 48 8d 6c 24 01 48 89 e7 e8 25 da f8 ff e9 b0 03 00 00 <0f> 01 ca fc 6a ff e8 a5 02 00 00 48 89 c4 48 8d 6c 24 01 48 89 e7
RSP: 0018:ffffc900001aff48 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: ffffc900001b00e8 RCX: ffffc900001b0c60
RDX: 1ffff9200003601a RSI: ffffc900001b0c50 RDI: ffffc900001b0118
RBP: ffffc900001b0028 R08: ffffc900001b01a8 R09: 000000000000000e
R10: ffffc900001b01b0 R11: dffffc0000000001 R12: 1ffff92000036020
R13: ffffc900001b1000 R14: ffffc900001b0100 R15: 0000000000000002
FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0082245c9f CR3: 0000000144307000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
unwind_next_frame+0x3cb/0x700 arch/x86/kernel/unwind_frame.c:315
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:45 [inline]
kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
kasan_save_alloc_info+0x1f/0x30 mm/kasan/generic.c:505
____kasan_kmalloc mm/kasan/common.c:379 [inline]
__kasan_kmalloc+0x9c/0xb0 mm/kasan/common.c:388
kasan_kmalloc include/linux/kasan.h:212 [inline]
__do_kmalloc_node mm/slab_common.c:957 [inline]
__kmalloc_node_track_caller+0xb3/0x1e0 mm/slab_common.c:977
kmalloc_reserve net/core/skbuff.c:446 [inline]
__alloc_skb+0x125/0x2d0 net/core/skbuff.c:515
alloc_skb include/linux/skbuff.h:1290 [inline]
nlmsg_new include/net/netlink.h:991 [inline]
__neigh_notify+0x7d/0x130 net/core/neighbour.c:3504
neigh_cleanup_and_release+0x2c/0x1b0 net/core/neighbour.c:101
neigh_del net/core/neighbour.c:225 [inline]
neigh_remove_one+0x4d5/0x560 net/core/neighbour.c:246
neigh_forced_gc net/core/neighbour.c:279 [inline]
neigh_alloc net/core/neighbour.c:485 [inline]
___neigh_create+0x447/0x1db0 net/core/neighbour.c:648
__neigh_create+0x32/0x40 net/core/neighbour.c:737
ip6_finish_output2+0x9d0/0x1840 net/ipv6/ip6_output.c:125
__ip6_finish_output net/ipv6/ip6_output.c:201 [inline]
ip6_finish_output+0x50f/0xa60 net/ipv6/ip6_output.c:212
NF_HOOK_COND include/linux/netfilter.h:294 [inline]
ip6_output+0x1f7/0x4d0 net/ipv6/ip6_output.c:233
dst_output include/net/dst.h:444 [inline]
NF_HOOK include/linux/netfilter.h:305 [inline]
ndisc_send_skb+0x7cf/0xdc0 net/ipv6/ndisc.c:509
ndisc_send_rs+0x47d/0x5f0 net/ipv6/ndisc.c:719
addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3984
call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1510
expire_timers kernel/time/timer.c:1555 [inline]
__run_timers+0x72a/0xa10 kernel/time/timer.c:1826
run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1839
__do_softirq+0x1d8/0x661 kernel/softirq.c:617
invoke_softirq kernel/softirq.c:472 [inline]
__irq_exit_rcu+0x50/0xf0 kernel/softirq.c:700
irq_exit_rcu+0x9/0x10 kernel/softirq.c:712
sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:preempt_schedule_irq+0xc2/0x140 kernel/sched/core.c:7056
Code: 4c 89 e7 e8 60 26 9f 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 34 e5 31 fc fb bf 01 00 00 00 a9 e4 ff ff fa bf 01 00 00 00 e8 be e6 31 fc 65 48 8b 1d 56 d3
RSP: 0018:ffffc9000247ef40 EFLAGS: 00000246
RAX: 1ffff110234a8159 RBX: 1ffff9200048fdec RCX: ffffffff851f9900
RDX: 1ffffffff0f2d208 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc9000247efd8 R08: ffffffff87969040 R09: ffffffff87969048
R10: ffffffff87969058 R11: ffffffff87969050 R12: ffffc9000247ef60
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff9200048fde8
raw_irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:396
irqentry_exit+0x30/0x40 kernel/entry/common.c:439
sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:unwind_get_return_address_ptr arch/x86/kernel/unwind_frame.c:28 [inline]
RIP: 0010:update_stack_state+0x372/0x460 arch/x86/kernel/unwind_frame.c:251
Code: c0 49 89 06 48 8b 4d 90 42 80 3c 39 00 48 8b 5d c8 4c 8b 75 b8 74 0c 48 89 df e8 29 e6 84 00 48 8b 45 c0 48 c7 03 00 00 00 00 <48> 83 c0 08 48 89 c3 eb 08 48 8b 5d 88 48 83 eb 80 4c 89 f0 48 c1
RSP: 0018:ffffc9000247f0d0 EFLAGS: 00000246
RAX: ffffc9000247f970 RBX: ffffc9000247f278 RCX: 1ffff9200048fe4f
RDX: 1ffff9200048fe46 RSI: ffffc9000247f970 RDI: ffffc9000247f278
RBP: ffffc9000247f188 R08: ffffc9000247f308 R09: 0000000000000008
R10: ffffc9000247f310 R11: dffffc0000000001 R12: 1ffff9200048fe4c
R13: 0000000000000000 R14: ffffc9000247f248 R15: dffffc0000000000
unwind_next_frame+0x3cb/0x700 arch/x86/kernel/unwind_frame.c:315
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:147
__reset_page_owner+0x54/0x190 mm/page_owner.c:168
reset_page_owner include/linux/page_owner.h:26 [inline]
free_pages_prepare mm/page_alloc.c:1498 [inline]
free_pcp_prepare mm/page_alloc.c:1572 [inline]
free_unref_page_prepare+0x83d/0x850 mm/page_alloc.c:3498
free_unref_page+0xb2/0x5c0 mm/page_alloc.c:3594
free_the_page mm/page_alloc.c:798 [inline]
__free_pages+0x61/0xf0 mm/page_alloc.c:5803
__vunmap+0x9f3/0xb60 mm/vmalloc.c:2728
__vfree mm/vmalloc.c:2776 [inline]
vfree+0x5c/0x80 mm/vmalloc.c:2807
kcov_put kernel/kcov.c:428 [inline]
kcov_close+0x2b/0x50 kernel/kcov.c:524
__fput+0x3ab/0x870 fs/file_table.c:320
____fput+0x15/0x20 fs/file_table.c:348
task_work_run+0x24d/0x2e0 kernel/task_work.c:179
exit_task_work include/linux/task_work.h:38 [inline]
do_exit+0xbd5/0x2b80 kernel/exit.c:875
do_group_exit+0x21a/0x2d0 kernel/exit.c:1025
get_signal+0x169d/0x1820 kernel/signal.c:2880
arch_do_signal_or_restart+0xb0/0x16f0 arch/x86/kernel/signal.c:871
exit_to_user_mode_loop+0x74/0xa0 kernel/entry/common.c:174
exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210
irqentry_exit_to_user_mode+0x9/0x10 kernel/entry/common.c:316
irqentry_exit+0x12/0x40 kernel/entry/common.c:419
sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0033:0x7fdc07c3e1b7
Code: Unable to access opcode bytes at 0x7fdc07c3e18d.
RSP: 002b:00007fdc08bba040 EFLAGS: 00000217
RAX: 0000000000000000 RBX: 00007fdc07f05f80 RCX: 00007fdc07d779f9
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000003
RBP: 00007fdc07de58ee R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fdc07f05f80 R15: 00007ffe1b3c6618