RBP: 00007f14501e5058 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f14501e5064 R13: 0000000000000000 R14: 00007ffd0fc92710 R15: 00007ffd0fc927f8 watchdog: BUG: soft lockup - CPU#0 stuck for 287s! [syz.7.495:2965] Modules linked in: CPU: 0 PID: 2965 Comm: syz.7.495 Tainted: G W 5.15.167-syzkaller-android13-5.15.167_r00 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:slab_want_init_on_alloc mm/slab.h:643 [inline] RIP: 0010:slab_alloc_node mm/slub.c:3237 [inline] RIP: 0010:slab_alloc mm/slub.c:3248 [inline] RIP: 0010:kmem_cache_alloc_trace+0xce/0x210 mm/slub.c:3265 Code: 08 0f 94 c0 a8 01 74 a9 48 89 7d c8 0f 1f 44 00 00 66 90 49 83 7d 48 00 74 08 31 c0 eb 1b 31 db eb 37 41 f7 45 08 00 08 08 00 <74> 0b 44 89 f0 c1 e8 08 83 e0 01 eb 02 b0 01 48 8b 75 c0 44 0f b6 RSP: 0018:ffffc90000007908 EFLAGS: 00000246 RAX: ffff888126cf1001 RBX: ffff888126cf1b80 RCX: 0000000000024f48 RDX: 0000000000024f40 RSI: 0000000000000060 RDI: ffff888126cf1080 RBP: ffffc90000007950 R08: 000000000003b320 R09: ffffed102694ed52 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888100042900 R13: ffff888100042900 R14: 0000000000000a20 R15: 0000000000000048 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d51dff8 CR3: 0000000006a0f000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: kmalloc include/linux/slab.h:603 [inline] dst_cow_metrics_generic+0x55/0x1c0 net/core/dst.c:199 dst_metrics_write_ptr include/net/dst.h:118 [inline] dst_metric_set include/net/dst.h:179 [inline] icmp6_dst_alloc+0x385/0x560 net/ipv6/route.c:3288 ndisc_send_skb+0x27f/0xc90 net/ipv6/ndisc.c:491 ndisc_send_rs+0x532/0x6a0 net/ipv6/ndisc.c:705 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3979 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1457 expire_timers kernel/time/timer.c:1502 [inline] __run_timers+0x72a/0xa10 kernel/time/timer.c:1773 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1786 handle_softirqs+0x25e/0x5c0 kernel/softirq.c:565 __do_softirq kernel/softirq.c:603 [inline] invoke_softirq kernel/softirq.c:425 [inline] __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:652 irq_exit_rcu+0x9/0x10 kernel/softirq.c:664 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:preempt_schedule_irq+0xc2/0x140 kernel/sched/core.c:6916 Code: 4c 89 e7 e8 90 7c cd fc f6 44 24 21 02 74 0b 0f 0b 48 f7 03 08 00 00 00 74 4d bf 01 00 00 00 e8 34 2f 67 fc fb bf 01 00 00 00 e9 e3 ff ff fa bf 01 00 00 00 e8 be 30 67 fc 65 48 8b 1d 76 40 RSP: 0018:ffffc900009c7180 EFLAGS: 00000246 RAX: 1ffff1102192e8be RBX: 1ffff92000138e34 RCX: ffffffff84e6ff00 RDX: 1ffff1102192e76d RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffffc900009c7208 R08: ffffffff874ce000 R09: ffffffff874ce008 R10: ffffffff874ce018 R11: ffffffff874ce010 R12: ffffc900009c71a0 R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000138e30 irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:398 irqentry_exit+0x30/0x40 kernel/entry/common.c:432 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:stack_trace_consume_entry+0xd8/0x290 kernel/stacktrace.c:93 Code: 49 89 f5 4c 89 45 d0 4d 89 ce e8 b3 30 53 00 4d 89 f1 4c 8b 45 d0 4c 8b 55 c8 4c 89 ee 48 ba 00 00 00 00 00 fc ff df 4c 8b 33 <41> 8d 59 01 41 0f b6 04 17 84 c0 0f 85 38 01 00 00 41 89 1a 4b 8d RSP: 0018:ffffc900009c7308 EFLAGS: 00000246 RAX: 1ffff92000138e88 RBX: ffffc900009c7440 RCX: 00000000009c7301 RDX: dffffc0000000000 RSI: ffffffff81459103 RDI: ffffc900009c744c RBP: ffffc900009c7350 R08: ffffc900009c7448 R09: 000000000000000b R10: ffffc900009c7450 R11: dffffc0000000001 R12: 1ffff92000138e89 R13: 1ffff92000138e89 R14: ffffc900009c7520 R15: 1ffff92000138e8a 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:139 __reset_page_owner+0x36/0x190 mm/page_owner.c:156 reset_page_owner include/linux/page_owner.h:26 [inline] free_pages_prepare mm/page_alloc.c:1472 [inline] free_pcp_prepare mm/page_alloc.c:1544 [inline] free_unref_page_prepare+0x7c8/0x7d0 mm/page_alloc.c:3534 free_unref_page+0xe8/0x750 mm/page_alloc.c:3616 free_the_page mm/page_alloc.c:805 [inline] __free_pages+0x61/0xf0 mm/page_alloc.c:5855 __vunmap+0x7bc/0x8f0 mm/vmalloc.c:2652 __vfree mm/vmalloc.c:2700 [inline] vfree+0x7f/0xb0 mm/vmalloc.c:2731 kcov_put kernel/kcov.c:417 [inline] kcov_close+0x2b/0x50 kernel/kcov.c:519 __fput+0x228/0x8c0 fs/file_table.c:280 ____fput+0x15/0x20 fs/file_table.c:308 task_work_run+0x129/0x190 kernel/task_work.c:188 exit_task_work include/linux/task_work.h:33 [inline] do_exit+0xc48/0x2ca0 kernel/exit.c:880 do_group_exit+0x141/0x310 kernel/exit.c:1002 get_signal+0x7a3/0x1630 kernel/signal.c:2904 arch_do_signal_or_restart+0xbd/0x1680 arch/x86/kernel/signal.c:867 handle_signal_work kernel/entry/common.c:154 [inline] exit_to_user_mode_loop+0xa0/0xe0 kernel/entry/common.c:178 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:214 irqentry_exit_to_user_mode+0x9/0x10 kernel/entry/common.c:320 irqentry_exit+0x12/0x40 kernel/entry/common.c:411 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0033:0x7f145002d719 Code: Unable to access opcode bytes at RIP 0x7f145002d6ef. RSP: 002b:00007f144ec850e8 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 00007f14501e5060 RCX: 00007f145002d719 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f14501e5060 RBP: 00007f14501e5058 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f14501e5064 R13: 0000000000000000 R14: 00007ffd0fc92710 R15: 00007ffd0fc927f8 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 8 Comm: kworker/u4:0 Tainted: G W 5.15.167-syzkaller-android13-5.15.167_r00 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:csd_lock_wait kernel/smp.c:440 [inline] RIP: 0010:smp_call_function_many_cond+0x843/0x9b0 kernel/smp.c:969 Code: 45 8b 7d 00 44 89 fe 83 e6 01 31 ff e8 e6 a5 0a 00 41 83 e7 01 49 bf 00 00 00 00 00 fc ff df 75 07 e8 21 a2 0a 00 eb 38 f3 90 <42> 0f b6 04 3b 84 c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 05 a2 RSP: 0018:ffffc90000087840 EFLAGS: 00000293 RAX: ffffffff8165b57b RBX: 1ffff1103ee07af1 RCX: ffff88810026a780 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90000087958 R08: ffffffff8165b54a R09: ffffed103ee271d3 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: ffff8881f703d788 R14: ffff8881f7138e80 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff4faeea000 CR3: 0000000006a0f000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: on_each_cpu_cond_mask+0x40/0x80 kernel/smp.c:1135 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:1207 [inline] text_poke_bp_batch+0x1db/0x720 arch/x86/kernel/alternative.c:1407 text_poke_flush arch/x86/kernel/alternative.c:1598 [inline] text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:1605 arch_jump_label_transform_apply+0x15/0x30 arch/x86/kernel/jump_label.c:146 __jump_label_update+0x36a/0x380 kernel/jump_label.c:459 jump_label_update+0x3af/0x450 kernel/jump_label.c:830 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/0x460 mm/kfence/core.c:729 process_one_work+0x6bb/0xc10 kernel/workqueue.c:2325 worker_thread+0xad5/0x12a0 kernel/workqueue.c:2472 kthread+0x421/0x510 kernel/kthread.c:337 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287