watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz.0.1154:6061] Modules linked in: CPU: 1 PID: 6061 Comm: syz.0.1154 Tainted: G W 5.10.228-syzkaller-00037-g55d7d0ea61c5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:___neigh_create+0x12cf/0x1a10 net/core/neighbour.c:640 Code: e7 e8 25 5a df fd 4d 8b 24 24 4d 85 e4 74 0a e8 f7 c0 a1 fd e9 64 ff ff ff e8 ed c0 a1 fd eb 0f e8 e6 c0 a1 fd e9 5f ee ff ff dc c0 a1 fd 48 8b 45 d0 48 8d 98 97 00 00 00 48 89 d8 48 c1 e8 RSP: 0018:ffffc900001705e8 EFLAGS: 00000246 RAX: 1ffff11021feecd0 RBX: ffff88810ff76680 RCX: 00000000000000f6 RDX: ffff88810b27bb40 RSI: 0000000000000000 RDI: ffff888129f76480 RBP: ffffc900001706c0 R08: ffffffff83c8fdb0 R09: fffffbfff0da8733 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: ffffffff86d437a0 R14: 0000000000000680 R15: 000000000000000a FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200029c0 CR3: 000000014c150000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __neigh_create+0x32/0x40 net/core/neighbour.c:680 ip6_finish_output2+0x957/0x1850 net/ipv6/ip6_output.c:142 __ip6_finish_output+0x5ec/0x780 net/ipv6/ip6_output.c:216 ip6_finish_output+0x34/0x1e0 net/ipv6/ip6_output.c:226 NF_HOOK_COND include/linux/netfilter.h:288 [inline] ip6_output+0x1f7/0x4c0 net/ipv6/ip6_output.c:249 dst_output include/net/dst.h:437 [inline] NF_HOOK include/linux/netfilter.h:299 [inline] ndisc_send_skb+0x6e9/0xc00 net/ipv6/ndisc.c:511 ndisc_send_rs+0x532/0x6a0 net/ipv6/ndisc.c:705 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3964 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1450 expire_timers kernel/time/timer.c:1495 [inline] __run_timers+0x72a/0xa10 kernel/time/timer.c:1789 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1802 __do_softirq+0x268/0x5bb kernel/softirq.c:309 asm_call_irq_on_stack+0xf/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0x60/0x80 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:405 [inline] __irq_exit_rcu+0x128/0x150 kernel/softirq.c:435 irq_exit_rcu+0x9/0x10 kernel/softirq.c:447 sysvec_apic_timer_interrupt+0xbf/0xe0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:stack_trace_consume_entry+0x6/0x290 kernel/stacktrace.c:82 Code: 07 80 c1 03 38 c1 0f 8c 7b ff ff ff 48 89 df e8 10 8f 4e 00 e9 6e ff ff ff e8 46 b8 53 03 66 0f 1f 44 00 00 55 48 89 e5 41 57 <41> 56 41 55 41 54 53 48 83 ec 20 48 89 fb 48 ba 00 00 00 00 00 fc RSP: 0018:ffffc900011d7148 EFLAGS: 00000282 RAX: ffffffff819de810 RBX: ffffc900011d7160 RCX: 00000000011d7101 RDX: 1ffff9200023ae2e RSI: ffffffff819de810 RDI: ffffc900011d7240 RBP: ffffc900011d7150 R08: ffffc900011d7248 R09: 0000000000000004 R10: ffffc900011d7250 R11: dffffc0000000001 R12: ffff88810b27bb40 R13: ffffffff8159ca60 R14: ffffc900011d7240 R15: 0000000000000000 arch_stack_walk+0x101/0x140 arch/x86/kernel/stacktrace.c:27 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:121 save_stack+0x97/0x240 mm/page_owner.c:146 __reset_page_owner+0x36/0x150 mm/page_owner.c:174 reset_page_owner include/linux/page_owner.h:28 [inline] free_pages_prepare mm/page_alloc.c:1349 [inline] free_pcp_prepare mm/page_alloc.c:1421 [inline] free_unref_page_prepare+0x2ae/0x2d0 mm/page_alloc.c:3336 free_unref_page mm/page_alloc.c:3391 [inline] free_the_page+0x9e/0x370 mm/page_alloc.c:5407 __free_pages+0x67/0xc0 mm/page_alloc.c:5418 free_pages+0x7c/0x90 mm/page_alloc.c:5429 kasan_depopulate_vmalloc_pte+0x6a/0x90 mm/kasan/shadow.c:354 apply_to_pte_range mm/memory.c:2476 [inline] apply_to_pmd_range mm/memory.c:2512 [inline] apply_to_pud_range mm/memory.c:2540 [inline] apply_to_p4d_range mm/memory.c:2568 [inline] __apply_to_page_range+0x720/0x9e0 mm/memory.c:2595 apply_to_existing_page_range+0x38/0x50 mm/memory.c:2846 kasan_release_vmalloc+0x9a/0xb0 mm/kasan/shadow.c:464 __purge_vmap_area_lazy+0x150e/0x1620 mm/vmalloc.c:1376 try_purge_vmap_area_lazy+0x38/0x50 mm/vmalloc.c:1395 free_vmap_area_noflush+0x281/0x2b0 mm/vmalloc.c:1431 free_unmap_vmap_area mm/vmalloc.c:1444 [inline] remove_vm_area+0x1d7/0x1f0 mm/vmalloc.c:2199 vm_remove_mappings mm/vmalloc.c:2226 [inline] __vunmap+0x24b/0x8f0 mm/vmalloc.c:2292 __vfree mm/vmalloc.c:2349 [inline] vfree+0x5c/0x80 mm/vmalloc.c:2380 kcov_put kernel/kcov.c:408 [inline] kcov_close+0x2b/0x50 kernel/kcov.c:510 __fput+0x33d/0x7b0 fs/file_table.c:281 ____fput+0x15/0x20 fs/file_table.c:314 task_work_run+0x129/0x190 kernel/task_work.c:189 exit_task_work include/linux/task_work.h:33 [inline] do_exit+0xc83/0x2a50 kernel/exit.c:863 do_group_exit+0x141/0x310 kernel/exit.c:985 get_signal+0x10a0/0x1410 kernel/signal.c:2793 arch_do_signal_or_restart+0xbd/0x17c0 arch/x86/kernel/signal.c:805 handle_signal_work kernel/entry/common.c:145 [inline] exit_to_user_mode_loop+0x9b/0xd0 kernel/entry/common.c:169 exit_to_user_mode_prepare kernel/entry/common.c:199 [inline] syscall_exit_to_user_mode+0xa2/0x1a0 kernel/entry/common.c:274 do_syscall_64+0x40/0x70 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7fb8b661ad19 Code: Unable to access opcode bytes at RIP 0x7fb8b661acef. RSP: 002b:00007fb8b4c6b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: 0000000000000000 RBX: 00007fb8b680b080 RCX: 00007fb8b661ad19 RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000009 RBP: 00007fb8b6696a20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fb8b680b080 R15: 00007ffe118c82e8 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 6823 Comm: syz.1.1211 Tainted: G W 5.10.228-syzkaller-00037-g55d7d0ea61c5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:error_return+0x0/0x20 arch/x86/entry/entry_64.S:1129 Code: 6d 02 00 89 d0 48 c1 ea 20 0f 30 0f 1f 44 00 00 48 89 e7 e8 d2 51 ed ff 48 89 c4 eb 81 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 84 24 88 00 00 00 03 0f 84 32 fd ff ff e9 cd fc ff ff 66 2e 0f RSP: 0018:ffffc900021dec18 EFLAGS: 00000002 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000010001 RDX: 1ffffffff0e10e00 RSI: 0000000000000000 RDI: ffffc900021dec18 RBP: ffffc900021dec19 R08: ffffffff87087008 R09: ffffffff87087018 R10: ffffffff87087010 R11: ffffffff87087003 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007fa73aaf26c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000100000000 CR3: 000000011981d000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:554 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock include/linux/spinlock.h:183 [inline] __raw_spin_lock include/linux/spinlock_api_smp.h:143 [inline] _raw_spin_lock+0x139/0x1b0 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:354 [inline] alloc_vmap_area+0x20d/0x1a90 mm/vmalloc.c:1210 __get_vm_area_node+0x156/0x470 mm/vmalloc.c:2093 __vmalloc_node_range+0xdc/0x7c0 mm/vmalloc.c:2591 __vmalloc_node mm/vmalloc.c:2682 [inline] vzalloc+0x78/0x90 mm/vmalloc.c:2735 bpf_check+0x1c6/0xf2b0 kernel/bpf/verifier.c:12574 bpf_prog_load kernel/bpf/syscall.c:2239 [inline] __do_sys_bpf kernel/bpf/syscall.c:4435 [inline] __se_sys_bpf+0x107a2/0x11cb0 kernel/bpf/syscall.c:4391 __x64_sys_bpf+0x7b/0x90 kernel/bpf/syscall.c:4391 do_syscall_64+0x34/0x70 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7fa73c480d19 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:00007fa73aaf2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007fa73c670fa0 RCX: 00007fa73c480d19 RDX: 0000000000000090 RSI: 00000000200000c0 RDI: 0000000000000005 RBP: 00007fa73c4fca20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fa73c670fa0 R15: 00007ffc1bb59b98