watchdog: BUG: soft lockup - CPU#0 stuck for 119s! [syz.0.1899:11568]
Modules linked in:
CPU: 0 PID: 11568 Comm: syz.0.1899 Not tainted 6.1.93-syzkaller-00097-g822682e75de0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:unwind_next_frame+0x387/0x700 arch/x86/kernel/unwind_frame.c:311
Code: 00 00 00 00 eb 59 4d 85 e4 74 1f 49 83 c4 20 4c 89 e0 48 c1 e8 03 80 3c 10 00 74 08 4c 89 e7 e8 7f ff 84 00 49 8b 04 24 eb 35 <65> 48 8b 05 e1 9a ca 7e 48 39 45 98 74 0b 48 8b 7d d0 e8 62 03 00
RSP: 0018:ffffc900000075b8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 1ffff92000000ed2 RCX: ffffffff877a2000
RDX: dffffc0000000000 RSI: ffffffff840d47a1 RDI: ffffc90000cc7f48
RBP: ffffc90000007630 R08: ffffc90000007728 R09: 0000000000000000
R10: ffffc90000007730 R11: dffffc0000000001 R12: 0000000000000000
R13: ffffc90000007690 R14: ffffc90000007640 R15: 1ffff92000000ec8
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffd88f0000 CR3: 0000000006e0f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 ref_tracker_alloc+0x175/0x450 lib/ref_tracker.c:91
 __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:3266
 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
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:__reset_page_owner+0x8e/0x190 mm/page_owner.c:169
Code: 28 3b b3 ff b8 01 00 00 00 4c 89 75 c8 44 89 f1 d3 e0 45 31 f6 85 c0 44 0f 4f f0 48 c7 c0 e0 47 08 87 48 c1 e8 03 48 89 45 c0 <eb> 07 48 03 1d 69 da 45 05 66 41 83 fc 1f 0f 87 a2 00 00 00 e8 c9
RSP: 0018:ffffc90000cc74e0 EFLAGS: 00000a06
RAX: 1ffffffff0e108fc RBX: ffff88810480d800 RCX: 0000000000000000
RDX: ffff888123eba880 RSI: 0000000000000000 RDI: 0000000000000020
RBP: ffffc90000cc7528 R08: ffffffff81c26d48 R09: 0000000000000000
R10: 0000000000000010 R11: dffffc0000000001 R12: 0000000000000000
R13: ffffea0004c0d800 R14: 0000000000000001 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: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
 __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: 0033:0x7f6664f7cef9
Code: Unable to access opcode bytes at 0x7f6664f7cecf.
RSP: 002b:00007f6665d3c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: 0000000000000006 RBX: 00007f6665135f80 RCX: 00007f6664f7cef9
RDX: 00000000000026e1 RSI: 0000000020000000 RDI: ffffffffffffff9c
RBP: 00007f6664fef046 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6665135f80 R15: 00007ffe51d0e708
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 376 Comm: kworker/u4:3 Not tainted 6.1.93-syzkaller-00097-g822682e75de0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
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 64 e5 fc 05 48 89 de e8 44 70 46 00 5b 5d c3 cc 55 <48> 89 e5 48 8b 45 08 65 48 8b 0d 60 c8 8c 7e 65 8b 15 61 c8 8c 7e
RSP: 0018:ffffc9000b39f830 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 1ffff1103ee07a99 RCX: ffff88811173e540
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000b39f958 R08: ffffffff816c09b5 R09: ffffed103ee271fb
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000800000000 R14: ffff8881f703d4c8 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffd88f0000 CR3: 0000000006e0f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 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_enable_cpuslocked+0x12f/0x250 kernel/jump_label.c:177
 static_key_enable+0x1a/0x30 kernel/jump_label.c:190
 toggle_allocation_gate+0xbf/0x450 mm/kfence/core.c:804
 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
 </TASK>
NMI backtrace for cpu 1
CPU: 1 PID: 11676 Comm: syz-executor Tainted: G             L     6.1.93-syzkaller-00097-g822682e75de0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:unwind_get_return_address+0x0/0x90 arch/x86/kernel/unwind_frame.c:15
Code: 5d c3 48 c7 c1 00 18 ee 86 80 e1 07 80 c1 03 38 c1 7c af 48 c7 c7 00 18 ee 86 e8 1b 04 85 00 eb a1 cc cc cc cc cc cc cc cc cc <55> 48 89 e5 41 57 41 56 53 48 89 fb 49 be 00 00 00 00 00 fc ff df
RSP: 0018:ffffc90000d87218 EFLAGS: 00000202
RAX: 0000000000d87201 RBX: ffffc90000d87220 RCX: 0000000000d87201
RDX: 1ffff920001b0e46 RSI: ffffc90000d877e8 RDI: ffffc90000d87220
RBP: ffffc90000d872b0 R08: ffffc90000d87308 R09: 0000000000000005
R10: ffffc90000d87310 R11: dffffc0000000001 R12: ffff8881163d0000
R13: ffffffff8165c680 R14: ffffc90000d87300 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffd88f0000 CR3: 000000012314b000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 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
 __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: 0033:0x7fb679f7ed33
Code: Unable to access opcode bytes at 0x7fb679f7ed09.
RSP: 002b:00007ffe199afee8 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
RAX: 0000000000000028 RBX: 00007fb67ac64620 RCX: 00007fb679f7ed33
RDX: 0000000000000028 RSI: 00007fb67ac64670 RDI: 0000000000000003
RBP: 0000000000000001 R08: 00007ffe199aff04 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
R13: 0000000000000000 R14: 00007fb67ac64670 R15: 0000000000000000
 </TASK>