RBP: 00007f048d210ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f048d3b5fa0 R15: 00007fff37be04c8 watchdog: BUG: soft lockup - CPU#1 stuck for 246s! [syz.3.3583:10308] Modules linked in: CPU: 1 PID: 10308 Comm: syz.3.3583 Not tainted 6.1.134-syzkaller-00012-g646380b087a5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 RIP: 0010:__sanitizer_cov_trace_pc+0x5c/0x60 kernel/kcov.c:234 Code: 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 08 <5d> c3 66 90 90 90 90 90 90 90 90 90 90 90 90 b8 e2 33 28 be 55 48 RSP: 0018:ffffc9000934f650 EFLAGS: 00000246 RAX: ffffffff816684ee RBX: dffffc0000000000 RCX: 0000000000080000 RDX: ffffc900032f1000 RSI: 000000000007ffff RDI: 0000000000080000 RBP: ffffc9000934f650 R08: dffffc0000000000 R09: ffffed103ee271fb R10: 0000000000000000 R11: ffffffff81341390 R12: 1ffff1103ee271f8 R13: 1ffff1103ee07a99 R14: 0000000000000000 R15: ffff8881f703d4c8 FS: 00007f048cfff6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000001411c7000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: csd_lock_wait kernel/smp.c:453 [inline] smp_call_function_many_cond+0x88e/0x960 kernel/smp.c:998 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:1334 [inline] text_poke_bp_batch+0x505/0x580 arch/x86/kernel/alternative.c:-1 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+0x37c/0x3a0 kernel/jump_label.c:451 jump_label_update+0x39b/0x450 kernel/jump_label.c:797 static_key_enable_cpuslocked+0x126/0x240 kernel/jump_label.c:173 static_key_enable+0x1a/0x30 kernel/jump_label.c:186 tracepoint_add_func+0x876/0x900 kernel/tracepoint.c:361 tracepoint_probe_register_prio_may_exist+0x5b/0x90 kernel/tracepoint.c:482 tracepoint_probe_register_may_exist include/linux/tracepoint.h:52 [inline] __bpf_probe_register kernel/trace/bpf_trace.c:2347 [inline] bpf_probe_register+0x13f/0x1d0 kernel/trace/bpf_trace.c:2353 bpf_raw_tp_link_attach+0x3d1/0x550 kernel/bpf/syscall.c:3364 bpf_raw_tracepoint_open+0x258/0x480 kernel/bpf/syscall.c:3391 __sys_bpf+0x4d1/0x780 kernel/bpf/syscall.c:5041 __do_sys_bpf kernel/bpf/syscall.c:5103 [inline] __se_sys_bpf kernel/bpf/syscall.c:5101 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5101 x64_sys_call+0x488/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:322 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: 0033:0x7f048d18e969 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:00007f048cfff038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f048d3b5fa0 RCX: 00007f048d18e969 RDX: 0000000000000010 RSI: 0000200000000040 RDI: 0000000000000011 RBP: 00007f048d210ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f048d3b5fa0 R15: 00007fff37be04c8 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 16 Comm: rcu_exp_gp_kthr Not tainted 6.1.134-syzkaller-00012-g646380b087a5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 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 15 b7 13 04 f4 9a fa 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 75 3f 0f b6 07 RSP: 0018:ffffc900001073a0 EFLAGS: 00000046 RAX: 0000000000000003 RBX: ffff8881f7027b80 RCX: ffffffff84efb682 RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff8881f7027b80 RBP: ffffc90000107430 R08: dffffc0000000000 R09: ffffed103ee04f71 R10: ffffed103ee04f71 R11: 1ffff1103ee04f70 R12: 1ffff1103ee00001 R13: ffff8881f7038bd4 R14: dffffc0000000000 R15: 1ffff92000020e74 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c28e002 CR3: 000000012b6ee000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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 lock_timer_base+0x127/0x270 kernel/time/timer.c:1005 __mod_timer+0x10a/0xb30 kernel/time/timer.c:1078 add_timer+0x68/0x80 kernel/time/timer.c:1218 __queue_delayed_work+0x173/0x200 kernel/workqueue.c:1686 queue_delayed_work_on+0xdb/0x150 kernel/workqueue.c:1711 queue_delayed_work include/linux/workqueue.h:525 [inline] schedule_delayed_monitor_work kernel/rcu/tree.c:3216 [inline] kvfree_call_rcu+0x436/0x7a0 kernel/rcu/tree.c:3472 trie_delete_elem+0x572/0x720 kernel/bpf/lpm_trie.c:545 bpf_prog_5186c38a4019a4cb+0x42/0x46 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:2282 [inline] bpf_trace_run3+0x113/0x270 kernel/trace/bpf_trace.c:2322 __bpf_trace_timer_start+0x2b/0x40 include/trace/events/timer.h:53 trace_timer_start include/trace/events/timer.h:53 [inline] enqueue_timer+0x337/0x480 kernel/time/timer.c:615 __mod_timer+0x79f/0xb30 kernel/time/timer.c:-1 schedule_timeout+0x127/0x2e0 kernel/time/timer.c:1970 synchronize_rcu_expedited_wait_once kernel/rcu/tree_exp.h:580 [inline] synchronize_rcu_expedited_wait kernel/rcu/tree_exp.h:631 [inline] rcu_exp_wait_wake kernel/rcu/tree_exp.h:699 [inline] rcu_exp_sel_wait_wake+0x789/0x1e40 kernel/rcu/tree_exp.h:733 wait_rcu_exp_gp+0x33/0x40 kernel/rcu/tree_exp.h:464 kthread_worker_fn+0x3bf/0x770 kernel/kthread.c:837 kthread+0x281/0x320 kernel/kthread.c:386 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295