watchdog: BUG: soft lockup - CPU#0 stuck for 226s! [syz-executor.3:5223] Modules linked in: CPU: 0 PID: 5223 Comm: syz-executor.3 Not tainted 6.1.78-syzkaller-00009-g25216be1ac5e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:unwind_next_frame+0x6/0x700 arch/x86/kernel/unwind_frame.c:265 Code: 41 5f 5d c3 44 89 f1 80 e1 07 80 c1 03 38 c1 7c 99 4c 89 f7 e8 fb c6 84 00 eb 8f 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 <41> 56 41 55 41 54 53 48 83 ec 50 49 89 fe 48 ba 00 00 00 00 00 fc RSP: 0018:ffffc90000007488 EFLAGS: 00000202 RAX: 0000000000000001 RBX: ffffc900000074a0 RCX: ffffffff87767000 RDX: dffffc0000000000 RSI: ffffffff84fa02e9 RDI: ffffc900000074a0 RBP: ffffc90000007490 R08: ffffc90000007588 R09: 000000000000002c R10: ffffc90000007590 R11: dffffc0000000001 R12: ffff888115b80000 R13: ffffffff816594e0 R14: ffffc90000007580 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fefe35b598c CR3: 0000000006e0f000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 kasan_save_alloc_info+0x1f/0x30 mm/kasan/generic.c:505 __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:333 kasan_slab_alloc include/linux/kasan.h:202 [inline] slab_post_alloc_hook+0x53/0x2c0 mm/slab.h:768 slab_alloc_node mm/slub.c:3421 [inline] slab_alloc mm/slub.c:3429 [inline] __kmem_cache_alloc_lru mm/slub.c:3436 [inline] kmem_cache_alloc+0x175/0x2c0 mm/slub.c:3445 dst_alloc+0x164/0x1e0 net/core/dst.c:92 ip6_dst_alloc net/ipv6/route.c:345 [inline] icmp6_dst_alloc+0xf8/0x510 net/ipv6/route.c:3266 ndisc_send_skb+0x28b/0xdc0 net/ipv6/ndisc.c:489 ndisc_send_rs+0x47d/0x5f0 net/ipv6/ndisc.c:719 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3968 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1480 expire_timers kernel/time/timer.c:1525 [inline] __run_timers+0x72a/0xa10 kernel/time/timer.c:1796 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1809 __do_softirq+0x1d8/0x661 kernel/softirq.c:617 invoke_softirq kernel/softirq.c:472 [inline] __irq_exit_rcu+0x50/0xf0 kernel/softirq.c:700 irq_exit_rcu+0x9/0x10 kernel/softirq.c:712 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:__schedule+0xcaf/0x1550 Code: 44 24 68 42 0f b6 04 28 84 c0 0f 85 83 02 00 00 41 80 24 24 fc 4c 89 f7 48 8b 74 24 20 e8 49 ce 01 fc 48 89 c7 e8 81 b6 51 fc <48> 8b 44 24 70 48 c7 84 24 80 00 00 00 0e 36 e0 45 49 c7 44 05 00 RSP: 0018:ffffc90000bb6f20 EFLAGS: 00000282 RAX: 0000000080000001 RBX: 1ffff1103ee04e65 RCX: 0000000000000002 RDX: 0000000000000001 RSI: 0000000000000004 RDI: 0000000000000001 RBP: ffffc90000bb7030 R08: dffffc0000000000 R09: ffffed102007128e R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffff8155ada0 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:7056 raw_irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:390 irqentry_exit+0x30/0x40 kernel/entry/common.c:433 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:stack_trace_consume_entry+0xa1/0x290 kernel/stacktrace.c:93 Code: 22 41 ff ce 41 0f b6 44 15 00 84 c0 0f 85 78 01 00 00 44 89 37 b0 01 e9 a1 00 00 00 31 c0 e9 9a 00 00 00 48 89 d8 48 c1 e8 03 <80> 3c 10 00 4c 89 55 c8 74 2a 48 89 df 49 89 f5 4c 89 45 d0 4d 89 RSP: 0018:ffffc90000bb71c8 EFLAGS: 00000a06 RAX: 1ffff92000176e60 RBX: ffffc90000bb7300 RCX: ffffffff87767000 RDX: dffffc0000000000 RSI: ffffffff81b73912 RDI: ffffc90000bb730c RBP: ffffc90000bb7210 R08: ffffc90000bb7308 R09: 0000000000000001 R10: ffffc90000bb7310 R11: dffffc0000000001 R12: 1ffff92000176e61 R13: 1ffff92000176e61 R14: 0000000000000000 R15: 1ffff92000176e62 arch_stack_walk+0x101/0x140 arch/x86/kernel/stacktrace.c:27 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 save_stack+0xf6/0x1e0 mm/page_owner.c:147 __reset_page_owner+0x54/0x190 mm/page_owner.c:168 reset_page_owner include/linux/page_owner.h:26 [inline] free_pages_prepare mm/page_alloc.c:1498 [inline] free_pcp_prepare mm/page_alloc.c:1572 [inline] free_unref_page_prepare+0x83d/0x850 mm/page_alloc.c:3498 free_unref_page+0xb2/0x5c0 mm/page_alloc.c:3594 free_the_page mm/page_alloc.c:798 [inline] __free_pages+0x61/0xf0 mm/page_alloc.c:5801 __vunmap+0x9f3/0xb60 mm/vmalloc.c:2728 __vfree mm/vmalloc.c:2776 [inline] vfree+0x5c/0x80 mm/vmalloc.c:2807 kcov_put kernel/kcov.c:428 [inline] kcov_close+0x2b/0x50 kernel/kcov.c:524 __fput+0x3ab/0x870 fs/file_table.c:320 ____fput+0x15/0x20 fs/file_table.c:348 task_work_run+0x24d/0x2e0 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xbd5/0x2b80 kernel/exit.c:875 do_group_exit+0x21a/0x2d0 kernel/exit.c:1025 get_signal+0x169d/0x1820 kernel/signal.c:2880 arch_do_signal_or_restart+0xb0/0x16f0 arch/x86/kernel/signal.c:871 exit_to_user_mode_loop+0x74/0xa0 kernel/entry/common.c:168 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:204 irqentry_exit_to_user_mode+0x9/0x20 kernel/entry/common.c:310 irqentry_exit+0x12/0x40 kernel/entry/common.c:413 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0033:0x7f81a087cea9 Code: Unable to access opcode bytes at 0x7f81a087ce7f. RSP: 002b:00007f81a16140c8 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 00007f81a09b3f80 RCX: 00007f81a087cea9 RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000004 RBP: 00007f81a08ebff4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f81a09b3f80 R15: 00007fff094660b8 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 789 Comm: kworker/u4:5 Not tainted 6.1.78-syzkaller-00009-g25216be1ac5e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:csd_lock_wait kernel/smp.c:453 [inline] RIP: 0010:smp_call_function_many_cond+0x856/0x930 kernel/smp.c:998 Code: e6 01 31 ff e8 4b 9f 09 00 41 83 e7 01 49 bf 00 00 00 00 00 fc ff df 75 0a e8 86 9b 09 00 e9 2f ff ff ff f3 90 42 0f b6 04 3b <84> c0 75 14 41 f7 06 01 00 00 00 0f 84 12 ff ff ff e8 64 9b 09 00 RSP: 0018:ffffc9000b28f840 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 1ffff1103ee07919 RCX: ffff88810d980000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc9000b28f958 R08: ffffffff816bd865 R09: ffffed103ee2707b R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: 0000000800000000 R14: ffff8881f703c8c8 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000786c6c257830 CR3: 0000000006e0f000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: on_each_cpu_cond_mask+0x40/0x80 kernel/smp.c:1166 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:1329 [inline] text_poke_bp_batch+0x1e9/0x730 arch/x86/kernel/alternative.c:1529 text_poke_flush arch/x86/kernel/alternative.c:1720 [inline] text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:1727 arch_jump_label_transform_apply+0x15/0x30 arch/x86/kernel/jump_label.c:146 __jump_label_update+0x36a/0x380 kernel/jump_label.c:455 jump_label_update+0x3af/0x450 kernel/jump_label.c:801 static_key_enable_cpuslocked+0x12f/0x250 kernel/jump_label.c:177 static_key_enable+0x1a/0x30 kernel/jump_label.c:190 toggle_allocation_gate+0xbf/0x450 mm/kfence/core.c:804 process_one_work+0x73d/0xcb0 kernel/workqueue.c:2299 worker_thread+0xa60/0x1260 kernel/workqueue.c:2446 kthread+0x26d/0x300 kernel/kthread.c:386 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 NMI backtrace for cpu 0 CPU: 0 PID: 7046 Comm: syz-executor.3 Tainted: G L 6.1.78-syzkaller-00009-g25216be1ac5e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:check_preemption_disabled+0x1/0x110 lib/smp_processor_id.c:13 Code: ff ff 5d c3 cc cc cc cc cc 55 48 89 e5 48 c7 c7 c0 d3 c9 85 48 c7 c6 00 d4 c9 85 e8 09 00 00 00 5d c3 0f 1f 80 00 00 00 00 55 <48> 89 e5 41 57 41 56 41 54 53 48 83 ec 10 65 48 8b 04 25 28 00 00 RSP: 0018:ffffc90000007e50 EFLAGS: 00000046 RAX: ffffffff816a6ce2 RBX: ffff8881f7029ca0 RCX: ffff888111866540 RDX: 0000000080010000 RSI: ffffffff856b2ea0 RDI: ffffffff85c9d420 RBP: ffffc90000007e60 R08: ffffffff8166f7e1 R09: ffff88812e5bcac8 R10: 0000000000000000 R11: dffffc0000000001 R12: 000000c8cdb6b00b R13: 7fffffffffffffff R14: 0000000000000000 R15: ffff8881f7029d78 FS: 00007f6dd5f5e6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000786c6c257830 CR3: 0000000112202000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: tick_program_event+0x2e/0x120 kernel/time/tick-oneshot.c:25 hrtimer_interrupt+0x625/0xaa0 kernel/time/hrtimer.c:1824 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline] __sysvec_apic_timer_interrupt+0xfd/0x3c0 arch/x86/kernel/apic/apic.c:1112 sysvec_apic_timer_interrupt+0x95/0xc0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:update_stack_state+0x0/0x460 arch/x86/kernel/unwind_frame.c:198 Code: ff 4c 89 e7 e8 01 c0 84 00 e9 69 fe ff ff 66 2e 0f 1f 84 00 00 00 00 00 66 90 55 48 89 e5 48 8b 07 5d c3 0f 1f 80 00 00 00 00 <55> 48 89 e5 41 57 41 56 41 55 41 54 53 48 81 ec 90 00 00 00 48 89 RSP: 0018:ffffc90004b1f058 EFLAGS: 00000286 RAX: 0000000000000000 RBX: ffffc90004b1f0d0 RCX: 0000000000000001 RDX: ffffc90004b1f0e0 RSI: ffffc90004b1f0d0 RDI: ffffc90004b1f0e0 RBP: ffffc90004b1f0d0 R08: dffffc0000000001 R09: ffffc90004b1f0e0 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: ffff888111866540 R14: ffffc90004b1f100 R15: ffffc90004b1f0e0 unwind_start arch/x86/include/asm/unwind.h:64 [inline] arch_stack_walk+0xdb/0x140 arch/x86/kernel/stacktrace.c:24 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 save_stack+0xf6/0x1e0 mm/page_owner.c:147 __set_page_owner+0x21/0x70 mm/page_owner.c:210 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x213/0x220 mm/page_alloc.c:2590 prep_new_page+0x1b/0x110 mm/page_alloc.c:2597 get_page_from_freelist+0x27ea/0x2870 mm/page_alloc.c:4425 __alloc_pages+0x3a1/0x780 mm/page_alloc.c:5712 __folio_alloc+0x15/0x40 mm/page_alloc.c:5744 __folio_alloc_node include/linux/gfp.h:245 [inline] folio_alloc include/linux/gfp.h:274 [inline] alloc_page_vma include/linux/gfp.h:283 [inline] do_anonymous_page mm/memory.c:4220 [inline] handle_pte_fault mm/memory.c:5099 [inline] __handle_mm_fault mm/memory.c:5243 [inline] handle_mm_fault+0x1fb0/0x2f40 mm/memory.c:5383 do_user_addr_fault arch/x86/mm/fault.c:1414 [inline] handle_page_fault arch/x86/mm/fault.c:1506 [inline] exc_page_fault+0x24d/0x700 arch/x86/mm/fault.c:1562 asm_exc_page_fault+0x27/0x30 arch/x86/include/asm/idtentry.h:570 RIP: 0010:copy_user_enhanced_fast_string+0xa/0x40 arch/x86/lib/copy_user_64.S:166 Code: ff c9 75 f2 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 01 ca c3 8d 0c ca 89 ca eb 20 0f 01 cb 83 fa 40 72 38 89 d1 a4 31 c0 0f 01 ca c3 89 ca eb 0a 66 2e 0f 1f 84 00 00 00 00 00 RSP: 0018:ffffc90004b1fba8 EFLAGS: 00050206 RAX: ffffffff82763c01 RBX: 00007ffffffef000 RCX: 0000000000000100 RDX: 0000000000010000 RSI: ffff888131deff04 RDI: 00000000205b0000 RBP: ffffc90004b1fbd0 R08: dffffc0000000000 R09: 0000000000000003 R10: 0000000000000001 R11: dffffc0000000001 R12: 0000000000010000 R13: 0000000000000000 R14: 00000000205a0100 R15: ffff888131de0004 copy_to_user include/linux/uaccess.h:169 [inline] generic_map_lookup_batch+0x778/0xcc0 kernel/bpf/syscall.c:1756 bpf_map_do_batch+0x2e2/0x630 kernel/bpf/syscall.c:4523 __sys_bpf+0x66b/0x7f0 __do_sys_bpf kernel/bpf/syscall.c:5091 [inline] __se_sys_bpf kernel/bpf/syscall.c:5089 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5089 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f6dd527cea9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f6dd5f5e0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f6dd53b4050 RCX: 00007f6dd527cea9 RDX: 0000000000000038 RSI: 00000000200003c0 RDI: 0000000000000018 RBP: 00007f6dd52ebff4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f6dd53b4050 R15: 00007ffc20d10be8