watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz.6.2332:11812]
Modules linked in:
CPU: 0 PID: 11812 Comm: syz.6.2332 Tainted: G W 6.1.99-syzkaller-00080-ga874ed06eb34 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:arch_stack_walk+0x105/0x140 arch/x86/kernel/stacktrace.c:25
Code: 83 bd 70 ff ff ff 00 74 32 48 8d 9d 70 ff ff ff 48 89 df e8 9d 9b 05 00 48 85 c0 74 1e 4c 89 f7 48 89 c6 41 ff d5 84 c0 74 11 <48> 89 df e8 b3 9c 05 00 83 bd 70 ff ff ff 00 75 d5 65 48 8b 04 25
RSP: 0000:ffffc90000007380 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffc90000007380 RCX: ffffffff879a3000
RDX: dffffc0000000000 RSI: ffffffff8163adaa RDI: ffffc9000000746c
RBP: ffffc90000007410 R08: ffffc90000007468 R09: 0000000000000022
R10: ffffc90000007470 R11: dffffc0000000001 R12: ffff888123de8000
R13: ffffffff8165c4c0 R14: ffffc90000007460 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd81ce2660d CR3: 0000000126203000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
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]
kmalloc_trace+0x44/0xa0 mm/slab_common.c:1052
kmalloc include/linux/slab.h:556 [inline]
kzalloc include/linux/slab.h:692 [inline]
ref_tracker_alloc+0x138/0x450 lib/ref_tracker.c:85
__netdev_tracker_alloc include/linux/netdevice.h:4063 [inline]
netdev_hold include/linux/netdevice.h:4092 [inline]
dst_init+0xe1/0x400 net/core/dst.c:52
dst_alloc+0x18a/0x1e0 net/core/dst.c:96
ip6_dst_alloc net/ipv6/route.c:345 [inline]
icmp6_dst_alloc+0xf8/0x510 net/ipv6/route.c:3269
ndisc_send_skb+0x28b/0xdc0 net/ipv6/ndisc.c:489
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
handle_softirqs+0x1db/0x650 kernel/softirq.c:617
__do_softirq kernel/softirq.c:655 [inline]
invoke_softirq kernel/softirq.c:472 [inline]
__irq_exit_rcu+0x52/0xf0 kernel/softirq.c:704
irq_exit_rcu+0x9/0x10 kernel/softirq.c:716
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:page_ext_put+0x0/0x30 mm/page_ext.c:183
Code: ff eb 14 e8 d2 d1 b1 ff eb 05 e8 cb d1 b1 ff e8 56 a7 9d ff 45 31 f6 4c 89 f0 5b 41 5c 41 5e 41 5f 5d c3 e8 b2 d1 b1 ff eb 8c <55> 48 89 e5 53 48 89 fb e8 a3 d1 b1 ff 48 85 db 74 0d e8 99 d1 b1
RSP: 0000:ffffc90000d374d8 EFLAGS: 00000293
RAX: ffffffff81c2919d RBX: ffff8881040d8980 RCX: ffff888123de8000
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8881040d8980
RBP: ffffc90000d37528 R08: dffffc0000000000 R09: ffffed102081b129
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff8881040d8960 R14: 00000000ffffffff R15: dffffc0000000000
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:3504
free_unref_page+0xb2/0x5c0 mm/page_alloc.c:3600
free_the_page mm/page_alloc.c:798 [inline]
__free_pages+0x61/0xf0 mm/page_alloc.c:5810
__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+0x1e5/0x870 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:877
do_group_exit+0x21a/0x2d0 kernel/exit.c:1027
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
__syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
syscall_exit_to_user_mode+0x26/0x130 kernel/entry/common.c:303
do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f59cf77e719
Code: Unable to access opcode bytes at 0x7f59cf77e6ef.
RSP: 002b:00007f59d04d90e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007f59cf936138 RCX: 00007f59cf77e719
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f59cf93613c
RBP: 00007f59cf936130 R08: 00007ffdca3c80b0 R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000246 R12: 00007f59cf93613c
R13: 0000000000000000 R14: 00007ffdca343b20 R15: 00007ffdca343c08
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 8139 Comm: kworker/u4:30 Tainted: G W 6.1.99-syzkaller-00080-ga874ed06eb34 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:__sanitizer_cov_trace_pc+0x1/0x60 kernel/kcov.c:200
Code: 00 00 00 00 00 0f 1f 40 00 55 48 89 e5 53 48 89 fb e8 13 00 00 00 48 8b 3d 34 fb 1c 06 48 89 de e8 94 95 46 00 5b 5d c3 cc 55 <48> 89 e5 48 8b 45 08 65 48 8b 0d 70 ca 8c 7e 65 8b 15 71 ca 8c 7e
RSP: 0018:ffffc900011cf830 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 1ffff1103edc7a99 RCX: ffff888132309440
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900011cf958 R08: ffffffff816c07f5 R09: ffffed103ede71fb
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000800000000 R14: ffff8881f6e3d4c8 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd44ad21b8 CR3: 000000000700f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
on_each_cpu_cond_mask+0x40/0x80 kernel/smp.c:1166
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:1334 [inline]
text_poke_bp_batch+0x1e9/0x730 arch/x86/kernel/alternative.c:1534
text_poke_flush arch/x86/kernel/alternative.c:1725 [inline]
text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:1732
arch_jump_label_transform_apply+0x15/0x30 arch/x86/kernel/jump_label.c:146
__jump_label_update+0x36a/0x380 kernel/jump_label.c:455
jump_label_update+0x3af/0x450 kernel/jump_label.c:801
static_key_disable_cpuslocked+0xcd/0x1b0 kernel/jump_label.c:207
static_key_disable+0x1a/0x30 kernel/jump_label.c:215
toggle_allocation_gate+0x3b4/0x450 mm/kfence/core.c:818
process_one_work+0x73d/0xcb0 kernel/workqueue.c:2299
worker_thread+0xa60/0x1260 kernel/workqueue.c:2446
kthread+0x26d/0x300 kernel/kthread.c:386
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308