RBP: 00007f838a1b7da0 R08: 0000000000000001 R09: 000000153aab689f
R10: 0000001b2d720000 R11: 0000000000000246 R12: 00007f838a1b5fac
R13: 00007f838a1b5fa0 R14: ffffffffffffffff R15: 00007ffe3aab66c0
 </TASK>
watchdog: BUG: soft lockup - CPU#1 stuck for 225s! [syz.1.442:1975]
Modules linked in:
CPU: 1 PID: 1975 Comm: syz.1.442 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:csd_lock_wait kernel/smp.c:453 [inline]
RIP: 0010:smp_call_function_many_cond+0x872/0x960 kernel/smp.c:998
Code: 41 8b 1f 89 de 83 e6 01 31 ff e8 39 66 09 00 83 e3 01 48 bb 00 00 00 00 00 fc ff df 75 0a e8 05 62 09 00 e9 38 ff ff ff f3 90 <41> 0f b6 44 1d 00 84 c0 75 14 41 f7 07 01 00 00 00 0f 84 1a ff ff
RSP: 0018:ffffc9000ee0f7c0 EFLAGS: 00000293
RAX: ffffffff8166a57e RBX: dffffc0000000000 RCX: ffff888110061440
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000ee0f8f8 R08: dffffc0000000000 R09: ffffed103ee27213
R10: 0000000000000000 R11: ffffffff81342170 R12: 1ffff1103ee27210
R13: 1ffff1103ee07ab9 R14: 0000000000000000 R15: ffff8881f703d5c8
FS:  000055558f556500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001000 CR3: 0000000133e83000 CR4: 00000000003506a0
DR0: 0000200000000300 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 on_each_cpu_cond_mask+0x43/0x80 kernel/smp.c:1166
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:1574 [inline]
 text_poke_bp_batch+0x1cc/0x580 arch/x86/kernel/alternative.c:1774
 text_poke_flush arch/x86/kernel/alternative.c:1965 [inline]
 text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:1972
 arch_jump_label_transform_apply+0x15/0x30 arch/x86/kernel/jump_label.c:146
 __jump_label_update+0x37c/0x3a0 kernel/jump_label.c:451
 jump_label_update+0x39b/0x450 kernel/jump_label.c:797
 static_key_disable_cpuslocked+0xc9/0x1a0 kernel/jump_label.c:203
 static_key_disable+0x1a/0x30 kernel/jump_label.c:211
 tracepoint_remove_func kernel/tracepoint.c:417 [inline]
 tracepoint_probe_unregister+0x624/0x8b0 kernel/tracepoint.c:551
 bpf_probe_unregister+0x61/0x70 kernel/trace/bpf_trace.c:2359
 bpf_raw_tp_link_release+0x63/0x90 kernel/bpf/syscall.c:3170
 bpf_link_free+0x13a/0x390 kernel/bpf/syscall.c:2739
 bpf_link_put kernel/bpf/syscall.c:2765 [inline]
 bpf_link_release+0x15f/0x170 kernel/bpf/syscall.c:2774
 __fput+0x1fc/0x8f0 fs/file_table.c:320
 ____fput+0x15/0x20 fs/file_table.c:348
 task_work_run+0x1db/0x240 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0x9b/0xb0 kernel/entry/common.c:177
 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+0x1a/0x30 kernel/entry/common.c:303
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f8389f8ebe9
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:00007ffe3aab65a8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 0000000000012bf4 RCX: 00007f8389f8ebe9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f838a1b7da0 R08: 0000000000000001 R09: 000000153aab689f
R10: 0000001b2d720000 R11: 0000000000000246 R12: 00007f838a1b5fac
R13: 00007f838a1b5fa0 R14: ffffffffffffffff R15: 00007ffe3aab66c0
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 1971 Comm: syz.3.440 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:native_halt arch/x86/include/asm/irqflags.h:57 [inline]
RIP: 0010:halt arch/x86/include/asm/irqflags.h:98 [inline]
RIP: 0010:kvm_wait+0xcc/0x140 arch/x86/kernel/kvm.c:1058
Code: 20 f6 44 24 21 02 75 24 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 75 48 0f b6 07 40 38 f0 75 a6 66 90 0f 00 2d d5 ab 13 04 f4 <eb> 9a fa 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 75 3f 0f b6 07
RSP: 0018:ffffc900000074a0 EFLAGS: 00000046
RAX: 0000000000000003 RBX: ffff88810f0f2140 RCX: ffffffff84f37c82
RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff88810f0f2140
RBP: ffffc90000007530 R08: dffffc0000000000 R09: ffffed1021e1e429
R10: ffffed1021e1e429 R11: 1ffff11021e1e428 R12: 1ffff1103ee00001
R13: ffff8881f7038cb4 R14: dffffc0000000000 R15: 1ffff92000000e94
FS:  00007f18565756c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe6f7fcfd8 CR3: 00000001318b7000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 pv_wait arch/x86/include/asm/paravirt.h:603 [inline]
 pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline]
 __pv_queued_spin_lock_slowpath+0x690/0xc40 kernel/locking/qspinlock.c:511
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline]
 queued_spin_lock_slowpath+0x47/0x50 arch/x86/include/asm/qspinlock.h:51
 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
 do_raw_spin_lock include/linux/spinlock.h:187 [inline]
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:111 [inline]
 _raw_spin_lock_irqsave+0x108/0x110 kernel/locking/spinlock.c:162
 __queue_map_get+0xe4/0x3d0 kernel/bpf/queue_stack_maps.c:109
 queue_map_peek_elem+0x1f/0x30 kernel/bpf/queue_stack_maps.c:171
 bpf_prog_00798911c748094f+0x3a/0x3e
 bpf_dispatcher_nop_func include/linux/bpf.h:987 [inline]
 __bpf_prog_run include/linux/filter.h:603 [inline]
 bpf_prog_run include/linux/filter.h:610 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2283 [inline]
 bpf_trace_run2+0xff/0x250 kernel/trace/bpf_trace.c:2322
 __bpf_trace_contention_end+0xb/0x10 include/trace/events/lock.h:122
 trace_contention_end include/trace/events/lock.h:122 [inline]
 __pv_queued_spin_lock_slowpath+0xbff/0xc40 kernel/locking/qspinlock.c:560
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline]
 queued_spin_lock_slowpath+0x47/0x50 arch/x86/include/asm/qspinlock.h:51
 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
 do_raw_spin_lock include/linux/spinlock.h:187 [inline]
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:111 [inline]
 _raw_spin_lock_irqsave+0x108/0x110 kernel/locking/spinlock.c:162
 __queue_map_get+0xe4/0x3d0 kernel/bpf/queue_stack_maps.c:109
 queue_map_peek_elem+0x1f/0x30 kernel/bpf/queue_stack_maps.c:171
 bpf_prog_00798911c748094f+0x3a/0x3e
 bpf_dispatcher_nop_func include/linux/bpf.h:987 [inline]
 __bpf_prog_run include/linux/filter.h:603 [inline]
 bpf_prog_run include/linux/filter.h:610 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2283 [inline]
 bpf_trace_run2+0xff/0x250 kernel/trace/bpf_trace.c:2322
 __bpf_trace_hrtimer_start+0x23/0x30 include/trace/events/timer.h:202
 trace_hrtimer_start include/trace/events/timer.h:202 [inline]
 debug_activate kernel/time/hrtimer.c:467 [inline]
 enqueue_hrtimer+0x1e7/0x240 kernel/time/hrtimer.c:1075
 __run_hrtimer kernel/time/hrtimer.c:1707 [inline]
 __hrtimer_run_queues+0x43b/0x9f0 kernel/time/hrtimer.c:1754
 hrtimer_interrupt+0x3c7/0x8c0 kernel/time/hrtimer.c:1816
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1107 [inline]
 __sysvec_apic_timer_interrupt+0x11e/0x440 arch/x86/kernel/apic/apic.c:1124
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__sanitizer_cov_trace_pc+0x45/0x60 kernel/kcov.c:221
Code: ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 6c 0b 00 00 00 74 2c 8b 91 48 0b 00 00 83 fa 02 75 21 48 8b 91 50 0b 00 00 48 8b 32 <48> 8d 7e 01 8b 89 4c 0b 00 00 48 39 cf 73 08 48 89 3a 48 89 44 f2
RSP: 0018:ffffc9000e407690 EFLAGS: 00000246
RAX: ffffffff81a89e87 RBX: 0000000000000000 RCX: ffff88813751bcc0
RDX: ffffc90003a73000 RSI: 000000000000aa06 RDI: 0000000000000000
RBP: ffffc9000e407690 R08: dffffc0000000000 R09: fffff9400092f357
R10: fffff9400092f357 R11: 1ffffd400092f356 R12: dffffc0000000000
R13: 8000000125e6a007 R14: ffffea0004979a80 R15: ffffea0004979a80
 _compound_head include/linux/page-flags.h:261 [inline]
 PageSwapBacked include/linux/page-flags.h:508 [inline]
 mm_counter_file include/linux/mm.h:2411 [inline]
 mm_counter include/linux/mm.h:2420 [inline]
 copy_present_pte mm/memory.c:994 [inline]
 copy_pte_range mm/memory.c:1109 [inline]
 copy_pmd_range mm/memory.c:1195 [inline]
 copy_pud_range mm/memory.c:1232 [inline]
 copy_p4d_range mm/memory.c:1256 [inline]
 copy_page_range+0x11d7/0x2850 mm/memory.c:1354
 dup_mmap kernel/fork.c:775 [inline]
 dup_mm kernel/fork.c:1641 [inline]
 copy_mm+0xf04/0x1a10 kernel/fork.c:1693
 copy_process+0x12b4/0x3420 kernel/fork.c:2456
 kernel_clone+0x23a/0x810 kernel/fork.c:2863
 __do_sys_clone kernel/fork.c:3006 [inline]
 __se_sys_clone kernel/fork.c:2990 [inline]
 __x64_sys_clone+0x168/0x1b0 kernel/fork.c:2990
 x64_sys_call+0x990/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:57
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f185578ebe9
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:00007f1856574fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f18559b6090 RCX: 00007f185578ebe9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f1855811e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f18559b6128 R14: 00007f18559b6090 R15: 00007ffdb2eda828
 </TASK>