watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [syz.1.1433:13438] Modules linked in: irq event stamp: 337176 hardirqs last enabled at (337175): [] irqentry_exit+0x74/0x90 kernel/entry/common.c:214 hardirqs last disabled at (337176): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1052 softirqs last enabled at (337164): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last enabled at (337164): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last enabled at (337164): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723 softirqs last disabled at (337081): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last disabled at (337081): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last disabled at (337081): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723 CPU: 1 UID: 0 PID: 13438 Comm: syz.1.1433 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:csd_lock_wait kernel/smp.c:342 [inline] RIP: 0010:smp_call_function_many_cond+0xd33/0x12d0 kernel/smp.c:877 Code: 45 8b 2c 24 44 89 ee 83 e6 01 31 ff e8 96 73 0b 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 07 e8 41 6f 0b 00 eb 38 f3 90 <42> 0f b6 04 2b 84 c0 75 11 41 f7 04 24 01 00 00 00 74 1e e8 25 6f RSP: 0018:ffffc90005707420 EFLAGS: 00000246 RAX: ffffffff81b4d4cb RBX: 1ffff110170c8441 RCX: 0000000000080000 RDX: ffffc9000c6a9000 RSI: 000000000007ffff RDI: 0000000000080000 RBP: ffffc900057075a0 R08: ffffffff8f9e1077 R09: 1ffffffff1f3c20e R10: dffffc0000000000 R11: fffffbfff1f3c20f R12: ffff8880b8642208 R13: dffffc0000000000 R14: ffff8880b873b240 R15: 0000000000000000 FS: 00007ff493c3e6c0(0000) GS:ffff888125e0c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000000 CR3: 0000000059a92000 CR4: 00000000003526f0 DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1043 on_each_cpu include/linux/smp.h:71 [inline] smp_text_poke_sync_each_cpu arch/x86/kernel/alternative.c:2713 [inline] smp_text_poke_batch_finish+0x5f9/0x1130 arch/x86/kernel/alternative.c:2923 __static_call_transform+0x4eb/0x750 arch/x86/kernel/static_call.c:111 arch_static_call_transform+0x98/0xc0 arch/x86/kernel/static_call.c:-1 __static_call_update+0xe4/0x5d0 kernel/static_call_inline.c:147 tracepoint_update_call kernel/tracepoint.c:271 [inline] tracepoint_add_func+0x91e/0xa10 kernel/tracepoint.c:312 tracepoint_probe_register_prio kernel/tracepoint.c:464 [inline] tracepoint_probe_register+0x5d/0x90 kernel/tracepoint.c:484 perf_trace_event_reg kernel/trace/trace_event_perf.c:129 [inline] perf_trace_event_init+0x4e1/0x9d0 kernel/trace/trace_event_perf.c:202 perf_trace_init+0x23d/0x2d0 kernel/trace/trace_event_perf.c:226 perf_tp_event_init+0x8d/0x120 kernel/events/core.c:10872 perf_try_init_event+0x17f/0x870 kernel/events/core.c:12605 perf_init_event kernel/events/core.c:12703 [inline] perf_event_alloc+0x133e/0x2be0 kernel/events/core.c:12978 __do_sys_perf_event_open kernel/events/core.c:13496 [inline] __se_sys_perf_event_open+0x772/0x1d70 kernel/events/core.c:13377 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff492d8efc9 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:00007ff493c3e038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007ff492fe5fa0 RCX: 00007ff492d8efc9 RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000200000000040 RBP: 00007ff492e11f91 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ff492fe6038 R14: 00007ff492fe5fa0 R15: 00007ffc09da7fa8 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 13435 Comm: syz.8.1434 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:__this_cpu_preempt_check+0x0/0x20 lib/smp_processor_id.c:63 Code: 96 af e6 f5 eb a7 e8 9f e4 ff ff 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 89 fe 48 c7 c7 60 77 c0 8b e9 bd fe ff ff cc cc cc RSP: 0018:ffffc90000007810 EFLAGS: 00000046 RAX: ffffffffffffffff RBX: 0000000000000083 RCX: 56caef7743f3c600 RDX: 0000000000000000 RSI: ffff8880b8627ad8 RDI: ffffffff8d9d15ee RBP: ffff88803165c7b0 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff52000000f00 R12: 0000000000000000 R13: 0000000000000000 R14: ffff8880b8627ad8 R15: ffff88803165bc80 FS: 00007f3edf35c6c0(0000) GS:ffff888125d0c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000001680 CR3: 0000000065efa000 CR4: 00000000003526f0 DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: lockdep_recursion_finish kernel/locking/lockdep.c:470 [inline] lock_release+0x27a/0x3e0 kernel/locking/lockdep.c:5891 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline] _raw_spin_unlock_irqrestore+0x70/0x110 kernel/locking/spinlock.c:194 unlock_hrtimer_base kernel/time/hrtimer.c:1013 [inline] hrtimer_try_to_cancel+0x3be/0x420 kernel/time/hrtimer.c:1360 hrtimer_cancel+0x3b/0x50 kernel/time/hrtimer.c:1481 perf_swevent_cancel_hrtimer kernel/events/core.c:11830 [inline] cpu_clock_event_stop+0xd9/0x130 kernel/events/core.c:11880 __perf_event_overflow+0x580/0xe40 kernel/events/core.c:10346 perf_swevent_hrtimer+0x3b8/0x500 kernel/events/core.c:11786 __run_hrtimer kernel/time/hrtimer.c:1777 [inline] __hrtimer_run_queues+0x4e0/0xc60 kernel/time/hrtimer.c:1841 hrtimer_interrupt+0x45b/0xaa0 kernel/time/hrtimer.c:1903 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1041 [inline] __sysvec_apic_timer_interrupt+0x10b/0x410 arch/x86/kernel/apic/apic.c:1058 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1052 [inline] sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1052 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:kasan_save_track+0x0/0x80 mm/kasan/common.c:74 Code: 8b 04 25 08 40 91 92 8b 80 18 06 00 00 89 07 89 77 04 c3 cc cc cc cc cc 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <0f> 1f 40 d6 55 48 89 e5 41 57 41 56 53 48 83 e4 f0 48 81 ec 10 02 RSP: 0018:ffffc9000523fd10 EFLAGS: 00000246 RAX: ffff888046957288 RBX: ffff888046956d40 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000cc0 RDI: ffff888046957288 RBP: 0000000000000cc0 R08: 00000000ffffffff R09: 0000000000000000 R10: ffff888046957288 R11: ffffffff89240270 R12: 0000000000000540 R13: 0000000000018c28 R14: ffff88801da9a000 R15: 0000000000000000 unpoison_slab_object mm/kasan/common.c:342 [inline] __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:368 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4955 [inline] slab_alloc_node mm/slub.c:5265 [inline] kmem_cache_alloc_lru_noprof+0x35d/0x6d0 mm/slub.c:5284 sock_alloc_inode+0x28/0xc0 net/socket.c:322 alloc_inode+0x6a/0x1b0 fs/inode.c:346 new_inode_pseudo include/linux/fs.h:3395 [inline] sock_alloc net/socket.c:637 [inline] __sock_create+0x12d/0x9f0 net/socket.c:1569 sock_create net/socket.c:1663 [inline] __sys_socket_create net/socket.c:1700 [inline] __sys_socket+0xd7/0x1b0 net/socket.c:1747 __do_sys_socket net/socket.c:1761 [inline] __se_sys_socket net/socket.c:1759 [inline] __x64_sys_socket+0x7a/0x90 net/socket.c:1759 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3ede58efc9 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:00007f3edf35c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f3ede7e5fa0 RCX: 00007f3ede58efc9 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000010 RBP: 00007f3ede611f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f3ede7e6038 R14: 00007f3ede7e5fa0 R15: 00007ffc3a76ad78