watchdog: BUG: soft lockup - CPU#1 stuck for 144s! [syz.3.586:8064] Modules linked in: irq event stamp: 11849957 hardirqs last enabled at (11849956): [] irqentry_exit+0x74/0x90 kernel/entry/common.c:310 hardirqs last disabled at (11849957): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1050 softirqs last enabled at (71454): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last enabled at (71454): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last enabled at (71454): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 softirqs last disabled at (71457): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last disabled at (71457): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last disabled at (71457): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 CPU: 1 UID: 0 PID: 8064 Comm: syz.3.586 Not tainted 6.16.0-rc6-syzkaller-g5b4c54ac49af #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:check_kcov_mode kernel/kcov.c:183 [inline] RIP: 0010:write_comp_data kernel/kcov.c:246 [inline] RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x20/0x90 kernel/kcov.c:300 Code: 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 65 48 8b 14 25 08 10 a0 92 65 8b 0d 58 ef df 10 81 e1 00 01 ff 00 74 11 <81> f9 00 01 00 00 75 5b 83 ba 3c 16 00 00 00 74 52 8b 8a 18 16 00 RSP: 0018:ffffc90000a084d8 EFLAGS: 00000206 RAX: ffffffff8ae9bb21 RBX: ffff88805bc986d0 RCX: 0000000000000100 RDX: ffff88802b5e8000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000a087b0 R08: ffff88807aa12da7 R09: 1ffff1100f5425b4 R10: dffffc0000000000 R11: ffffed100f5425b5 R12: 0000000000000000 R13: ffffc90000a08ad0 R14: 0000000000000080 R15: ffff88807c15340b FS: 00007fb9240b36c0(0000) GS:ffff888125d1f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000004000 CR3: 000000002e8a2000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: ieee80211_rx_h_amsdu net/mac80211/rx.c:3118 [inline] ieee80211_rx_handlers+0x1cf1/0xbce0 net/mac80211/rx.c:4146 ieee80211_invoke_rx_handlers net/mac80211/rx.c:4190 [inline] ieee80211_prepare_and_rx_handle+0x266f/0x63a0 net/mac80211/rx.c:5044 __ieee80211_rx_handle_packet net/mac80211/rx.c:5285 [inline] ieee80211_rx_list+0x2499/0x2d80 net/mac80211/rx.c:5420 ieee80211_rx_napi+0x1a8/0x3d0 net/mac80211/rx.c:5443 ieee80211_rx include/net/mac80211.h:5185 [inline] ieee80211_handle_queued_frames+0xe8/0x1f0 net/mac80211/main.c:441 tasklet_action_common+0x36c/0x580 kernel/softirq.c:829 handle_softirqs+0x283/0x870 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:check_kcov_mode kernel/kcov.c:185 [inline] RIP: 0010:write_comp_data kernel/kcov.c:246 [inline] RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x31/0x90 kernel/kcov.c:314 Code: 24 65 48 8b 14 25 08 10 a0 92 65 8b 0d 18 ee df 10 81 e1 00 01 ff 00 74 11 81 f9 00 01 00 00 75 5b 83 ba 3c 16 00 00 00 74 52 <8b> 8a 18 16 00 00 83 f9 03 75 47 48 8b 8a 20 16 00 00 44 8b 8a 1c RSP: 0018:ffffc9000592eab8 EFLAGS: 00000246 RAX: ffffffff81cb5239 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff88802b5e8000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc9000592ebb8 R08: ffffc9000592eb4f R09: 0000000000000000 R10: ffffc9000592eb40 R11: ffffffffa0201a54 R12: 0000000000000000 R13: 1ffff92000b25d64 R14: ffffffff81cb4e27 R15: 0000000000000000 rcu_read_unlock include/linux/rcupdate.h:869 [inline] trace_call_bpf+0x4c9/0x850 kernel/trace/bpf_trace.c:148 perf_trace_run_bpf_submit+0x78/0x170 kernel/events/core.c:10891 do_perf_trace_lock_acquire include/trace/events/lock.h:24 [inline] perf_trace_lock_acquire+0x335/0x410 include/trace/events/lock.h:24 __do_trace_lock_acquire include/trace/events/lock.h:24 [inline] trace_lock_acquire include/trace/events/lock.h:24 [inline] lock_acquire+0x311/0x360 kernel/locking/lockdep.c:5834 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:841 [inline] class_rcu_constructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0xc2/0x2390 arch/x86/kernel/unwind_orc.c:479 __unwind_start+0x5b9/0x760 arch/x86/kernel/unwind_orc.c:758 unwind_start arch/x86/include/asm/unwind.h:64 [inline] arch_stack_walk+0xe4/0x150 arch/x86/kernel/stacktrace.c:24 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 save_stack+0xf5/0x1f0 mm/page_owner.c:156 __set_page_owner+0x8d/0x4a0 mm/page_owner.c:329 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1704 prep_new_page mm/page_alloc.c:1712 [inline] get_page_from_freelist+0x21e4/0x22c0 mm/page_alloc.c:3669 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:4959 __alloc_pages_noprof mm/page_alloc.c:4993 [inline] alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:4913 ___alloc_pages_bulk mm/kasan/shadow.c:344 [inline] __kasan_populate_vmalloc mm/kasan/shadow.c:368 [inline] kasan_populate_vmalloc+0xba/0x1a0 mm/kasan/shadow.c:417 alloc_vmap_area+0xd51/0x1490 mm/vmalloc.c:2092 __get_vm_area_node+0x1f8/0x300 mm/vmalloc.c:3187 __vmalloc_node_range_noprof+0x301/0x12f0 mm/vmalloc.c:3853 __vmalloc_node_noprof mm/vmalloc.c:3956 [inline] __vmalloc_noprof+0xb1/0xf0 mm/vmalloc.c:3970 bpf_prog_alloc_no_stats+0x4a/0x4b0 kernel/bpf/core.c:104 bpf_prog_alloc+0x3c/0x1a0 kernel/bpf/core.c:150 bpf_prog_load+0x735/0x1930 kernel/bpf/syscall.c:2882 __sys_bpf+0x528/0x870 kernel/bpf/syscall.c:6022 __do_sys_bpf kernel/bpf/syscall.c:6132 [inline] __se_sys_bpf kernel/bpf/syscall.c:6130 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6130 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb92318e9a9 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:00007fb9240b3038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007fb9233b6080 RCX: 00007fb92318e9a9 RDX: 0000000000000048 RSI: 0000200000000200 RDI: 0000000000000005 RBP: 00007fb923210d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fb9233b6080 R15: 00007ffc55e14bd8 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 1113 Comm: kworker/u8:6 Not tainted 6.16.0-rc6-syzkaller-g5b4c54ac49af #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline] RIP: 0010:smp_call_function_many_cond+0xf69/0x12d0 kernel/smp.c:885 Code: 00 45 8b 2f 44 89 ee 83 e6 01 31 ff e8 a0 6e 0b 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 07 e8 4b 6a 0b 00 eb 37 f3 90 <43> 0f b6 04 2c 84 c0 75 10 41 f7 07 01 00 00 00 74 1e e8 30 6a 0b RSP: 0018:ffffc9000420f6a0 EFLAGS: 00000293 RAX: ffffffff81b4b390 RBX: ffff8880b863b200 RCX: ffff8880270c0000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc9000420f800 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 1ffff110170e7f65 R13: dffffc0000000000 R14: 0000000000000001 R15: ffff8880b873fb28 FS: 0000000000000000(0000) GS:ffff888125c1f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000564b4d22e028 CR3: 000000000df38000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1052 on_each_cpu include/linux/smp.h:71 [inline] smp_text_poke_sync_each_cpu arch/x86/kernel/alternative.c:2691 [inline] smp_text_poke_batch_finish+0x5e0/0x1100 arch/x86/kernel/alternative.c:2901 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146 static_key_disable_cpuslocked+0xc5/0x1b0 kernel/jump_label.c:240 static_key_disable+0x1a/0x20 kernel/jump_label.c:248 toggle_allocation_gate+0x1a1/0x240 mm/kfence/core.c:855 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402 kthread+0x711/0x8a0 kernel/kthread.c:464 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245