kthread+0x31e/0x3a0 kernel/kthread.c:288
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:354
watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [kworker/u4:3:362]
Modules linked in:
CPU: 0 PID: 362 Comm: kworker/u4:3 Not tainted 5.4.292-syzkaller-00021-gcd8e74fa0fa3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:__read_once_size include/linux/compiler.h:268 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:155 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x21/0x50 kernel/kcov.c:187
Code: 00 00 90 90 00 00 90 90 00 55 48 89 e5 48 8b 45 08 65 48 8b 0d 90 0e a3 7e 65 8b 15 95 0e a3 7e f7 c2 00 01 1f 00 74 02 5d c3 <8b> 91 00 0a 00 00 83 fa 02 75 f3 48 8b 91 08 0a 00 00 48 8b 32 48
RSP: 0018:ffff8881ec7177d0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffffffff8155309d RBX: 0000000000000000 RCX: ffff8881ec98ee40
RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff8881ec7177d0 R08: dffffc0000000000 R09: ffffed103edeb189
R10: ffffed103edeb189 R11: 1ffff1103edeb188 R12: ffff8881ec717820
R13: 0000000000000001 R14: 0000000000000001 R15: 1ffff1103d8e2f00
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555564b8a4a8 CR3: 0000000005c0e000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 csd_lock_wait kernel/smp.c:109 [inline]
 smp_call_function_single+0x1ed/0x410 kernel/smp.c:311
 smp_call_function_many+0x6d6/0x990 kernel/smp.c:451
 smp_call_function kernel/smp.c:509 [inline]
 on_each_cpu+0xa8/0x170 kernel/smp.c:616
 text_poke_bp_batch+0xf7/0x260 arch/x86/kernel/alternative.c:1051
 arch_jump_label_transform_apply+0x2b/0x50 arch/x86/kernel/jump_label.c:167
 __jump_label_update+0x37c/0x3a0 kernel/jump_label.c:449
 jump_label_update+0x34c/0x3e0 kernel/jump_label.c:808
 static_key_enable_cpuslocked+0x126/0x230 kernel/jump_label.c:177
 static_key_enable+0x1a/0x30 kernel/jump_label.c:190
 toggle_allocation_gate+0xa6/0x230 mm/kfence/core.c:624
 process_one_work+0x73b/0xcc0 kernel/workqueue.c:2290
 worker_thread+0xa5c/0x13b0 kernel/workqueue.c:2436
 kthread+0x31e/0x3a0 kernel/kthread.c:288
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:354
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 677 Comm: syz.3.103 Not tainted 5.4.292-syzkaller-00021-gcd8e74fa0fa3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:native_halt arch/x86/include/asm/irqflags.h:66 [inline]
RIP: 0010:halt arch/x86/include/asm/irqflags.h:112 [inline]
RIP: 0010:kvm_wait+0xb2/0x120 arch/x86/kernel/kvm.c:847
Code: c1 e8 03 42 0f b6 04 30 84 c0 75 6d 0f b6 07 40 38 f0 75 26 41 f7 c4 00 02 00 00 75 0f 0f 1f 44 00 00 0f 00 2d 2f 5f 59 03 f4 <eb> 0e 0f 1f 44 00 00 0f 00 2d 20 5f 59 03 fb f4 4c 89 64 24 18 ff
RSP: 0018:ffff8881df3577a0 EFLAGS: 00000046
RAX: 0000000000000003 RBX: ffff8881df6afd20 RCX: ffffffff8148437a
RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffff8881df6afd20
RBP: ffff8881df357850 R08: dffffc0000000000 R09: ffffed103bed5fa5
R10: ffffed103bed5fa5 R11: 1ffff1103bed5fa4 R12: 0000000000000046
R13: 1ffff1103bed5fa4 R14: dffffc0000000000 R15: 1ffff1103be6aef8
FS:  00007f627536f6c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000010000 CR3: 00000001eb058000 CR4: 00000000003406a0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 pv_wait arch/x86/include/asm/paravirt.h:652 [inline]
 pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline]
 __pv_queued_spin_lock_slowpath+0x714/0xb70 kernel/locking/qspinlock.c:507
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:642 [inline]
 queued_spin_lock_slowpath+0x47/0x50 arch/x86/include/asm/qspinlock.h:50
 queued_spin_lock include/asm-generic/qspinlock.h:81 [inline]
 do_raw_spin_lock_flags include/linux/spinlock.h:193 [inline]
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:119 [inline]
 _raw_spin_lock_irqsave+0x108/0x110 kernel/locking/spinlock.c:159
 trie_delete_elem+0x95/0x730 kernel/bpf/lpm_trie.c:465
 bpf_prog_2c29ac5cdc6b1842+0x83a/0x1000
 bpf_call_func include/linux/filter.h:627 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1341 [inline]
 bpf_trace_run2+0xb8/0x230 kernel/trace/bpf_trace.c:1379
 __bpf_trace_kmem_free+0x6f/0x90 include/trace/events/kmem.h:118
 trace_kfree include/trace/events/kmem.h:138 [inline]
 kfree+0x22d/0x260 mm/slub.c:4055
 trie_update_elem+0x243/0xc80 kernel/bpf/lpm_trie.c:441
 map_update_elem+0x8f4/0xb00 kernel/bpf/syscall.c:970
 __do_sys_bpf kernel/bpf/syscall.c:2879 [inline]
 __se_sys_bpf+0x39d/0x570 kernel/bpf/syscall.c:2849
 __x64_sys_bpf+0x7b/0x90 kernel/bpf/syscall.c:2849
 do_syscall_64+0xcf/0x170 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7f6276d27969
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:00007f627536f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f6276f4f080 RCX: 00007f6276d27969
RDX: 0000000000000020 RSI: 0000200000000740 RDI: 0000000000000002
RBP: 00007f627536f090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007f6276f4f080 R15: 00007fffe79eb948