watchdog: BUG: soft lockup - CPU#1 stuck for 144s! [syz.1.58:5510] Modules linked in: irq event stamp: 12280431 hardirqs last enabled at (12280430): [] irqentry_exit+0x63/0x90 kernel/entry/common.c:357 hardirqs last disabled at (12280431): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1037 softirqs last enabled at (10033338): [] __do_softirq kernel/softirq.c:588 [inline] softirqs last enabled at (10033338): [] invoke_softirq kernel/softirq.c:428 [inline] softirqs last enabled at (10033338): [] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 softirqs last disabled at (10033341): [] __do_softirq kernel/softirq.c:588 [inline] softirqs last disabled at (10033341): [] invoke_softirq kernel/softirq.c:428 [inline] softirqs last disabled at (10033341): [] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 CPU: 1 UID: 0 PID: 5510 Comm: syz.1.58 Not tainted 6.12.0-rc1-syzkaller-00185-g8ca77b8f6223 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:arch_stack_walk+0x123/0x150 arch/x86/kernel/stacktrace.c:24 Code: c3 92 09 00 48 85 c0 74 23 4c 89 f7 48 89 c6 4d 89 eb 41 ff d3 66 90 84 c0 74 11 48 89 df e8 f4 93 09 00 83 bd 70 ff ff ff 00 <75> d0 65 48 8b 04 25 28 00 00 00 48 3b 45 d0 75 13 48 83 c4 68 5b RSP: 0018:ffffc90000a17e60 EFLAGS: 00000202 RAX: 0000000000000301 RBX: ffffc90000a17e60 RCX: 0000000000000302 RDX: dffffc0000000000 RSI: ffffc90000a11000 RDI: 0000000000000001 RBP: ffffc90000a17ef0 R08: ffffc90000a18380 R09: 0000000000000000 R10: ffffc90000a17eb0 R11: fffff52000142fd8 R12: ffff88802777bc00 R13: ffffffff81809710 R14: ffffc90000a17f40 R15: 0000000000000000 FS: 00007f63d3b3e6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c263393 CR3: 000000005f150000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:319 [inline] __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:345 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4086 [inline] slab_alloc_node mm/slub.c:4135 [inline] kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4142 skb_clone+0x20c/0x390 net/core/skbuff.c:2084 dev_queue_xmit_nit+0x419/0xc10 net/core/dev.c:2315 xmit_one net/core/dev.c:3584 [inline] dev_hard_start_xmit+0x15f/0x7e0 net/core/dev.c:3604 __dev_queue_xmit+0x1b11/0x3ed0 net/core/dev.c:4428 dev_queue_xmit include/linux/netdevice.h:3094 [inline] neigh_hh_output include/net/neighbour.h:526 [inline] neigh_output include/net/neighbour.h:540 [inline] ip6_finish_output2+0xfc9/0x1730 net/ipv6/ip6_output.c:141 ip6_finish_output+0x41e/0x810 net/ipv6/ip6_output.c:226 NF_HOOK include/linux/netfilter.h:314 [inline] ndisc_send_skb+0xab2/0x1380 net/ipv6/ndisc.c:511 addrconf_rs_timer+0x371/0x670 net/ipv6/addrconf.c:4042 call_timer_fn+0x18e/0x650 kernel/time/timer.c:1794 expire_timers kernel/time/timer.c:1845 [inline] __run_timers kernel/time/timer.c:2419 [inline] __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2430 run_timer_base kernel/time/timer.c:2439 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2449 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1037 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1037 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:finish_task_switch+0x1ea/0x870 kernel/sched/core.c:5189 Code: c9 50 e8 c9 01 0c 00 48 83 c4 08 4c 89 f7 e8 4d 39 00 00 0f 1f 44 00 00 4c 89 f7 e8 b0 d8 6a 0a e8 5b 5d 38 00 fb 48 8b 5d c0 <48> 8d bb f8 15 00 00 48 89 f8 48 c1 e8 03 49 be 00 00 00 00 00 fc RSP: 0018:ffffc90009676ee8 EFLAGS: 00000282 RAX: e599856f08cdb700 RBX: ffff88802777bc00 RCX: ffffffff8170c42a RDX: dffffc0000000000 RSI: ffffffff8c0acac0 RDI: ffffffff8c60fd20 RBP: ffffc90009676f30 R08: ffffffff942c5807 R09: 1ffffffff2858b00 R10: dffffc0000000000 R11: fffffbfff2858b01 R12: 1ffff110170e7f14 R13: dffffc0000000000 R14: ffff8880b873ea80 R15: ffff8880b873f8a0 context_switch kernel/sched/core.c:5318 [inline] __schedule+0x189d/0x4b30 kernel/sched/core.c:6675 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6997 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5829 Code: 2b 00 74 08 4c 89 f7 e8 fa 55 8e 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25 RSP: 0018:ffffc900096772c0 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 1ffff920012cee64 RCX: e599856f08cdb700 RDX: dffffc0000000000 RSI: ffffffff8c0adc40 RDI: ffffffff8c60fd20 RBP: ffffc90009677408 R08: ffffffff942c5807 R09: 1ffffffff2858b00 R10: dffffc0000000000 R11: fffffbfff2858b01 R12: 1ffff920012cee60 R13: dffffc0000000000 R14: ffffc90009677320 R15: 0000000000000246 rcu_lock_acquire include/linux/rcupdate.h:337 [inline] rcu_read_lock include/linux/rcupdate.h:849 [inline] __pte_offset_map+0x9e/0x380 mm/pgtable-generic.c:287 __pte_offset_map_lock+0xc7/0x300 mm/pgtable-generic.c:371 get_locked_pte include/linux/mm.h:2727 [inline] __text_poke+0x2c5/0xd30 arch/x86/kernel/alternative.c:1899 text_poke arch/x86/kernel/alternative.c:1984 [inline] text_poke_bp_batch+0x8cd/0xb30 arch/x86/kernel/alternative.c:2373 text_poke_flush arch/x86/kernel/alternative.c:2486 [inline] text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2493 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146 static_key_enable_cpuslocked+0x136/0x260 kernel/jump_label.c:210 static_key_enable+0x1a/0x20 kernel/jump_label.c:223 tracepoint_add_func+0x953/0x9e0 kernel/tracepoint.c:361 tracepoint_probe_register_prio kernel/tracepoint.c:511 [inline] tracepoint_probe_register+0x105/0x160 kernel/tracepoint.c:531 perf_trace_event_reg kernel/trace/trace_event_perf.c:129 [inline] perf_trace_event_init+0x478/0x930 kernel/trace/trace_event_perf.c:202 perf_trace_init+0x243/0x2e0 kernel/trace/trace_event_perf.c:226 perf_tp_event_init+0x8d/0x110 kernel/events/core.c:10357 perf_try_init_event+0x146/0x810 kernel/events/core.c:11891 perf_init_event kernel/events/core.c:11977 [inline] perf_event_alloc+0x135f/0x2310 kernel/events/core.c:12259 __do_sys_perf_event_open kernel/events/core.c:12766 [inline] __se_sys_perf_event_open+0xb1f/0x3870 kernel/events/core.c:12657 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f63d2d7dff9 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:00007f63d3b3e038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f63d2f35f80 RCX: 00007f63d2d7dff9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040 RBP: 00007f63d2df0296 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f63d2f35f80 R15: 00007fff1ff85198 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 5489 Comm: syz.4.54 Not tainted 6.12.0-rc1-syzkaller-00185-g8ca77b8f6223 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:26 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:183 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x11/0x70 kernel/kcov.c:217 Code: 5b e9 d3 d7 5d 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 65 48 8b 0c 25 c0 d7 03 00 <65> 8b 15 40 f4 6e 7e 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 RSP: 0018:ffffc90000007af8 EFLAGS: 00000046 RAX: ffffffff81c907f7 RBX: ffff88805ebd0d60 RCX: ffff888026b28000 RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000007d50 R08: ffffffff81c907ec R09: 1ffff92000000f50 R10: dffffc0000000000 R11: fffff52000000f51 R12: ffffc90009717228 R13: 1ffff92000000f68 R14: 0000000000000000 R15: ffff88805ebd0dc8 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2b98707ab8 CR3: 0000000064378000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: perf_exclude_event kernel/events/core.c:10002 [inline] perf_swevent_hrtimer+0x2c7/0x560 kernel/events/core.c:11224 __run_hrtimer kernel/time/hrtimer.c:1691 [inline] __hrtimer_run_queues+0x551/0xd50 kernel/time/hrtimer.c:1755 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1817 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1026 [inline] __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1043 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1037 [inline] sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1037 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:vm_normal_page+0xc7/0x200 mm/memory.c:657 Code: 89 ee e8 0c 7a b2 ff 4c 39 eb 0f 84 ad 00 00 00 e8 9e 77 b2 ff 49 c1 e5 06 48 bb 00 00 00 00 00 ea ff ff 4c 01 eb 48 89 d8 5b <41> 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 48 bd 00 00 00 00 00 fc RSP: 0018:ffffc900097172d0 EFLAGS: 00000286 RAX: ffffea0001d001c0 RBX: ffffc90009717840 RCX: ffff888026b28000 RDX: 0000000000000000 RSI: 0000000000074007 RDI: 00000000000131a9 RBP: ffffc90009717601 R08: ffffffff81e26bc4 R09: 1ffffd40003a0036 R10: dffffc0000000000 R11: fffff940003a0037 R12: 8000000074007007 R13: 0000000001d001c0 R14: 00007f3efcb57000 R15: ffff88802fa6cc98 zap_present_ptes mm/memory.c:1549 [inline] zap_pte_range mm/memory.c:1621 [inline] zap_pmd_range mm/memory.c:1739 [inline] zap_pud_range mm/memory.c:1768 [inline] zap_p4d_range mm/memory.c:1789 [inline] unmap_page_range+0xac6/0x40e0 mm/memory.c:1810 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1900 exit_mmap+0x275/0xc40 mm/mmap.c:1864 __mmput+0x115/0x390 kernel/fork.c:1347 exit_mm+0x220/0x310 kernel/exit.c:571 do_exit+0x9b2/0x28e0 kernel/exit.c:926 do_group_exit+0x207/0x2c0 kernel/exit.c:1088 get_signal+0x16a3/0x1740 kernel/signal.c:2917 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3efd37dff9 Code: Unable to access opcode bytes at 0x7f3efd37dfcf. RSP: 002b:00007f3efe241038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffea RBX: 00007f3efd535f80 RCX: 00007f3efd37dff9 RDX: 0000000020000080 RSI: 00000000000089f1 RDI: 000000000000000a RBP: 00007f3efd3f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f3efd535f80 R15: 00007ffe5f5a5738