rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P3786 1-.... } 2832 jiffies s: 1513 root: 0x2/T rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 3739 Comm: syz.1.2 Not tainted 6.1.113-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:match_held_lock+0x77/0xb0 kernel/locking/lockdep.c:5139 Code: c7 c2 20 81 bb 90 48 29 d0 48 c1 f8 06 48 ba ab aa aa aa aa aa aa aa 48 0f af d0 bd 01 00 00 00 48 39 ca 74 02 31 ed 89 e8 5b <5d> c3 e8 82 96 8f f9 31 ed 85 c0 74 f0 83 3d 3d fe f2 03 00 75 e7 RSP: 0018:ffffc900001dfe88 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88802befbb80 RDX: ffff88802befbb80 RSI: ffff8880b8f2a4d8 RDI: ffff88802befc660 RBP: 0000000000000000 R08: ffffffff8179c041 R09: fffffbfff1d34056 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000046 R13: ffff88802befbb80 R14: 00000000ffffffff R15: ffff8880b8f2a4d8 FS: 00007fc9b73a16c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555594d295c8 CR3: 000000002c55e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __lock_is_held kernel/locking/lockdep.c:5403 [inline] lock_is_held_type+0xa4/0x180 kernel/locking/lockdep.c:5705 lock_is_held include/linux/lockdep.h:283 [inline] __run_hrtimer kernel/time/hrtimer.c:1655 [inline] __hrtimer_run_queues+0x307/0xe50 kernel/time/hrtimer.c:1753 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1815 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline] __sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1106 [inline] sysvec_apic_timer_interrupt+0x4d/0xc0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0010:kernel_text_address+0x4/0xd0 kernel/extable.c:95 Code: c1 48 c7 c2 cb ef f0 8f 48 39 d3 0f 92 c2 20 ca 08 c2 0f b6 c2 5b c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 41 56 53 <48> 89 fb 48 c7 c0 00 00 00 81 bd 01 00 00 00 48 39 c7 72 0c 48 c7 RSP: 0018:ffffc900001e0230 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffffff8895561e RCX: 0000000000000101 RDX: dffffc0000000000 RSI: ffffc900001d9000 RDI: ffffffff8895561e RBP: ffffc900001e0310 R08: ffffc900001e06d8 R09: ffffc900001e02d0 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88802befbb80 R13: ffffffff81784fd0 R14: dffffc0000000000 R15: 1ffff9200003c059 __kernel_text_address+0x9/0x40 kernel/extable.c:79 unwind_get_return_address+0x49/0x80 arch/x86/kernel/unwind_orc.c:323 arch_stack_walk+0xf3/0x140 arch/x86/kernel/stacktrace.c:26 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_free_info+0x27/0x40 mm/kasan/generic.c:516 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236 kasan_slab_free include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1724 [inline] slab_free_freelist_hook mm/slub.c:1750 [inline] slab_free mm/slub.c:3661 [inline] __kmem_cache_free+0x25c/0x3c0 mm/slub.c:3674 skb_free_head net/core/skbuff.c:762 [inline] skb_release_data+0x5de/0x7a0 net/core/skbuff.c:791 skb_release_all net/core/skbuff.c:856 [inline] __kfree_skb net/core/skbuff.c:870 [inline] kfree_skb_reason+0x16f/0x390 net/core/skbuff.c:893 kfree_skb include/linux/skbuff.h:1220 [inline] ip6_mc_input+0x9bf/0xbd0 net/ipv6/ip6_input.c:589 NF_HOOK+0x39d/0x450 include/linux/netfilter.h:302 __netif_receive_skb_one_core net/core/dev.c:5532 [inline] __netif_receive_skb+0x1c6/0x530 net/core/dev.c:5646 process_backlog+0x381/0x760 net/core/dev.c:5974 __napi_poll+0xc7/0x470 net/core/dev.c:6541 napi_poll net/core/dev.c:6608 [inline] net_rx_action+0x70f/0xeb0 net/core/dev.c:6722 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571 __do_softirq kernel/softirq.c:605 [inline] invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654 irq_exit_rcu+0x5/0x20 kernel/softirq.c:666 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1106 [inline] sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0010:preempt_schedule_irq+0xf2/0x1c0 kernel/sched/core.c:6870 Code: 89 f5 49 c1 ed 03 eb 0d 48 f7 03 08 00 00 00 0f 84 97 00 00 00 bf 01 00 00 00 e8 69 aa ae f6 e8 44 78 e1 f6 fb bf 01 00 00 00 79 b4 ff ff 43 80 7c 3d 00 00 74 08 4c 89 f7 e8 89 39 32 f7 48 RSP: 0018:ffffc90003c4ed00 EFLAGS: 00000286 RAX: 1476dfbaa14e8700 RBX: 1ffff92000789da8 RCX: ffffffff816b09aa RDX: dffffc0000000000 RSI: ffffffff8b0c02c0 RDI: 0000000000000001 RBP: ffffc90003c4edc0 R08: dffffc0000000000 R09: fffffbfff224604e R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000789da0 R13: 1ffff92000789da4 R14: ffffc90003c4ed20 R15: dffffc0000000000 irqentry_exit+0x53/0x80 kernel/entry/common.c:439 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0010:__nr_to_section include/linux/mmzone.h:1695 [inline] RIP: 0010:__pfn_to_section include/linux/mmzone.h:1803 [inline] RIP: 0010:lookup_page_ext mm/page_ext.c:274 [inline] RIP: 0010:page_ext_get+0x103/0x2a0 mm/page_ext.c:158 Code: ff ff ff 00 00 00 48 89 ef 48 89 de e8 c6 dd 9d ff 48 39 eb 0f 87 8d 01 00 00 48 c7 c0 60 13 39 97 48 c1 e8 03 42 80 3c 38 00 <74> 0c 48 c7 c7 60 13 39 97 e8 1f 5b f5 ff 48 8b 05 58 5a 4c 15 48 RSP: 0018:ffffc90003c4ee80 EFLAGS: 00000246 RAX: 1ffffffff2e7226c RBX: 0000000001f53880 RCX: ffff88802befbb80 RDX: ffffc90003ca1000 RSI: 0000000001f53880 RDI: 000000ffffffffc0 RBP: 000000ffffffffc0 R08: ffffffff81ecb8da R09: fffffbfff224604d R10: 0000000000000000 R11: dffffc0000000001 R12: 000000000007d4e2 R13: 0000000000000001 R14: ffffffff81ecb80c R15: dffffc0000000000 __reset_page_owner+0x32/0x1a0 mm/page_owner.c:144 reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1444 [inline] free_pcp_prepare mm/page_alloc.c:1494 [inline] free_unref_page_prepare+0xf63/0x1120 mm/page_alloc.c:3369 free_unref_page+0x33/0x3e0 mm/page_alloc.c:3464 qlink_free mm/kasan/quarantine.c:168 [inline] qlist_free_all+0x76/0xe0 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x156/0x170 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x1f/0x70 mm/kasan/common.c:305 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook+0x52/0x3a0 mm/slab.h:737 slab_alloc_node mm/slub.c:3398 [inline] __kmem_cache_alloc_node+0x137/0x260 mm/slub.c:3437 __do_kmalloc_node mm/slab_common.c:935 [inline] __kmalloc_node_track_caller+0xa0/0x220 mm/slab_common.c:956 kvasprintf+0xdb/0x180 lib/kasprintf.c:25 kobject_set_name_vargs+0x5d/0x110 lib/kobject.c:265 kobject_add_varg lib/kobject.c:360 [inline] kobject_init_and_add+0xda/0x190 lib/kobject.c:449 rx_queue_add_kobject net/core/net-sysfs.c:1061 [inline] net_rx_queue_update_kobjects+0x1c0/0x4c0 net/core/net-sysfs.c:1112 register_queue_kobjects net/core/net-sysfs.c:1772 [inline] netdev_register_kobject+0x222/0x310 net/core/net-sysfs.c:2017 register_netdevice+0x108a/0x1720 net/core/dev.c:10103 __ip_tunnel_create+0x2b0/0x370 net/ipv4/ip_tunnel.c:267 ip_tunnel_init_net+0x21f/0x700 net/ipv4/ip_tunnel.c:1100 ops_init+0x35d/0x610 net/core/net_namespace.c:138 setup_net+0x4b5/0xb90 net/core/net_namespace.c:335 copy_net_ns+0x392/0x5d0 net/core/net_namespace.c:481 create_new_namespaces+0x425/0x7a0 kernel/nsproxy.c:110 copy_namespaces+0x397/0x3f0 kernel/nsproxy.c:178 copy_process+0x1ab8/0x4060 kernel/fork.c:2267 kernel_clone+0x222/0x920 kernel/fork.c:2679 __do_sys_clone kernel/fork.c:2820 [inline] __se_sys_clone kernel/fork.c:2804 [inline] __x64_sys_clone+0x231/0x280 kernel/fork.c:2804 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fc9b657dff9 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:00007fc9b73a0fe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fc9b6735f80 RCX: 00007fc9b657dff9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000 RBP: 00007fc9b65f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fc9b6735f80 R15: 00007fff2d1c1448