watchdog: BUG: soft lockup - CPU#0 stuck for 144s! [syz.0.28:6073] Modules linked in: irq event stamp: 10688447 hardirqs last enabled at (10688446): [] irqentry_exit+0x74/0x90 kernel/entry/common.c:310 hardirqs last disabled at (10688447): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1050 softirqs last enabled at (3627486): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last enabled at (3627486): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last enabled at (3627486): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 softirqs last disabled at (3627489): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last disabled at (3627489): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last disabled at (3627489): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 CPU: 0 UID: 0 PID: 6073 Comm: syz.0.28 Not tainted 6.16.0-rc3-syzkaller-g03fe01ddd1d8 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:strlen+0x2e/0x70 lib/string.c:420 Code: 41 57 41 56 41 54 53 48 c7 c0 ff ff ff ff 49 be 00 00 00 00 00 fc ff df 48 89 fb 49 89 c7 48 89 d8 48 c1 e8 03 42 0f b6 04 30 <84> c0 75 11 48 ff c3 49 8d 47 01 42 80 7c 3f 01 00 75 de eb 19 89 RSP: 0018:ffffc90000006bd8 EFLAGS: 00000a06 RAX: 0000000000000006 RBX: ffffffff8b8bd68b RCX: 000000008b8bd602 RDX: ffffffff81cf5036 RSI: ffffffff8e13ee60 RDI: ffffffff8b8bd680 RBP: ffffc90000006cf8 R08: 0000000000000000 R09: ffffffff81cf5036 R10: ffffc90000006b40 R11: ffffffffa0201a48 R12: 1ffff92000000d88 R13: ffffffff81cf5036 R14: dffffc0000000000 R15: 000000000000000a FS: 00007f90105d06c0(0000) GS:ffff888125c19000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555564a5e5c8 CR3: 00000000114c8000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __fortify_strlen include/linux/fortify-string.h:268 [inline] trace_event_get_offsets_lock include/trace/events/lock.h:50 [inline] do_perf_trace_lock include/trace/events/lock.h:50 [inline] perf_trace_lock+0xc2/0x3b0 include/trace/events/lock.h:50 __do_trace_lock_release include/trace/events/lock.h:69 [inline] trace_lock_release include/trace/events/lock.h:69 [inline] lock_release+0x3b2/0x3e0 kernel/locking/lockdep.c:5882 rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:871 [inline] is_bpf_text_address+0x28d/0x2b0 kernel/bpf/core.c:778 kernel_text_address+0xa5/0xe0 kernel/extable.c:125 __kernel_text_address+0xd/0x40 kernel/extable.c:79 unwind_get_return_address+0x4d/0x90 arch/x86/kernel/unwind_orc.c:369 arch_stack_walk+0xfc/0x150 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:394 kasan_kmalloc include/linux/kasan.h:260 [inline] __do_kmalloc_node mm/slub.c:4328 [inline] __kmalloc_noprof+0x27a/0x4f0 mm/slub.c:4340 kmalloc_noprof include/linux/slab.h:909 [inline] kzalloc_noprof include/linux/slab.h:1039 [inline] cfg80211_inform_single_bss_data+0x905/0x1ac0 net/wireless/scan.c:2339 cfg80211_inform_bss_data+0x1fb/0x3b20 net/wireless/scan.c:3222 cfg80211_inform_bss_frame_data+0x3d7/0x730 net/wireless/scan.c:3313 ieee80211_bss_info_update+0x746/0x9e0 net/mac80211/scan.c:226 ieee80211_scan_rx+0x593/0xa20 net/mac80211/scan.c:355 __ieee80211_rx_handle_packet net/mac80211/rx.c:5183 [inline] ieee80211_rx_list+0x22fc/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+0x286/0x870 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_irq_work arch/x86/kernel/irq_work.c:17 [inline] sysvec_irq_work+0xa3/0xc0 arch/x86/kernel/irq_work.c:17 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738 RIP: 0010:preempt_schedule_irq+0xb0/0x150 kernel/sched/core.c:7108 Code: 24 20 f6 44 24 21 02 74 0c 90 0f 0b 48 f7 03 08 00 00 00 74 64 bf 01 00 00 00 e8 4b af 1f f6 e8 c6 cc 56 f6 fb bf 01 00 00 00 1b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24 RSP: 0018:ffffc9000be67980 EFLAGS: 00000282 RAX: 48e2172749244300 RBX: 0000000000000000 RCX: 48e2172749244300 RDX: 0000000000000000 RSI: ffffffff8d998fad RDI: 0000000000000001 RBP: ffffc9000be67a20 R08: ffffffff8fa1f0f7 R09: 1ffffffff1f43e1e R10: dffffc0000000000 R11: fffffbfff1f43e1f R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920017ccf30 irqentry_exit+0x6f/0x90 kernel/entry/common.c:307 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:try_charge_memcg+0x0/0x1290 mm/memcontrol.c:2306 Code: e9 85 7d 45 09 cc f3 0f 1e fa 4c 89 f7 89 de 5b 41 5e e9 c3 b2 fe ff 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 RSP: 0018:ffffc9000be67ae0 EFLAGS: 00000292 RAX: ffff888027240000 RBX: ffffea0000c5ae00 RCX: 48e2172749244300 RDX: 0000000000000001 RSI: 0000000000406dc0 RDI: ffff888027240000 RBP: 0000000000406dc0 R08: ffffc9000be6786f R09: 0000000000000000 R10: ffffc9000be67860 R11: ffffffffa0201a48 R12: 0000000000000001 R13: dffffc0000000000 R14: ffff8880247c4200 R15: ffff888027240000 obj_cgroup_charge_pages mm/memcontrol.c:2803 [inline] __memcg_kmem_charge_page+0xe1/0x240 mm/memcontrol.c:2847 __alloc_frozen_pages_noprof+0x1b5/0x370 mm/page_alloc.c:4976 __alloc_pages_noprof+0xa/0x30 mm/page_alloc.c:4993 __alloc_pages_node_noprof include/linux/gfp.h:284 [inline] alloc_pages_node_noprof include/linux/gfp.h:311 [inline] bpf_ringbuf_area_alloc kernel/bpf/ringbuf.c:125 [inline] bpf_ringbuf_alloc+0x254/0x590 kernel/bpf/ringbuf.c:173 ringbuf_map_alloc+0x1c8/0x2f0 kernel/bpf/ringbuf.c:208 map_create+0x900/0x1150 kernel/bpf/syscall.c:1477 __sys_bpf+0x60f/0x870 kernel/bpf/syscall.c:5989 __do_sys_bpf kernel/bpf/syscall.c:6117 [inline] __se_sys_bpf kernel/bpf/syscall.c:6115 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6115 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: 0033:0x7f900f78e929 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:00007f90105d0038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f900f9b6080 RCX: 00007f900f78e929 RDX: 0000000000000048 RSI: 00002000000007c0 RDI: 0000000000000000 RBP: 00007f900f810b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f900f9b6080 R15: 00007ffddc7c6e28 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 193 Comm: kworker/u8:5 Not tainted 6.16.0-rc3-syzkaller-g03fe01ddd1d8 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 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 40 7f 0b 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 07 e8 eb 7a 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 d0 7a 0b RSP: 0018:ffffc90002f276a0 EFLAGS: 00000293 RAX: ffffffff81b4e920 RBX: ffff8880b873b200 RCX: ffff8880207b1e00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90002f27800 R08: ffffffff8fa1f0f7 R09: 1ffffffff1f43e1e R10: dffffc0000000000 R11: fffffbfff1f43e1f R12: 1ffff110170c838d R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880b8641c68 FS: 0000000000000000(0000) GS:ffff888125d19000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005588a0a9c0a8 CR3: 000000000df38000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 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_enable_cpuslocked+0x128/0x250 kernel/jump_label.c:210 static_key_enable+0x1a/0x20 kernel/jump_label.c:223 toggle_allocation_gate+0xad/0x240 mm/kfence/core.c:850 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+0x70e/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