RBP: 0000000000000001 R08: 00007ffcf53ab860 R09: 0000559c476a1e60 R10: 0000000000000000 R11: 0000000000000202 R12: 0000559c476a9040 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 watchdog: BUG: soft lockup - CPU#1 stuck for 244s! [dhcpcd-run-hook:18786] Modules linked in: irq event stamp: 0 hardirqs last enabled at (0): [<0000000000000000>] 0x0 hardirqs last disabled at (0): [] copy_process+0x288a/0x7ff0 kernel/fork.c:2232 softirqs last enabled at (0): [] copy_process+0x28de/0x7ff0 kernel/fork.c:2233 softirqs last disabled at (0): [<0000000000000000>] 0x0 CPU: 1 UID: 0 PID: 18786 Comm: dhcpcd-run-hook Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:csd_lock_wait kernel/smp.c:342 [inline] RIP: 0010:smp_call_function_many_cond+0x58e/0x16c0 kernel/smp.c:892 Code: 00 fc ff df 48 8b 54 24 08 49 89 d5 49 89 d4 49 c1 ed 03 41 83 e4 07 49 01 c5 41 83 c4 03 e8 29 93 0c 00 f3 90 41 0f b6 45 00 <41> 38 c4 7c 08 84 c0 0f 85 2c 0f 00 00 8b 45 08 31 ff 83 e0 01 41 RSP: 0000:ffffc9000379f888 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81fcbc3d RDX: ffff888054275d00 RSI: ffffffff81fcbc17 RDI: ffff888054275d00 RBP: ffff8880b8443320 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000003 R13: ffffed1017088665 R14: 0000000000000001 R15: ffff8880b853c840 FS: 00007fb8abbb9c80(0000) GS:ffff888124435000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffcf53ab858 CR3: 000000002a245000 CR4: 0000000000350ef0 Call Trace: on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1057 __flush_tlb_multi arch/x86/include/asm/paravirt.h:46 [inline] flush_tlb_multi arch/x86/mm/tlb.c:1361 [inline] flush_tlb_mm_range+0x45f/0x16f0 arch/x86/mm/tlb.c:1451 flush_tlb_page arch/x86/include/asm/tlbflush.h:345 [inline] ptep_clear_flush+0x148/0x170 mm/pgtable-generic.c:104 wp_page_copy mm/memory.c:3941 [inline] do_wp_page+0x12a4/0x4350 mm/memory.c:4336 handle_pte_fault mm/memory.c:6443 [inline] __handle_mm_fault+0x1ab6/0x2a00 mm/memory.c:6565 handle_mm_fault+0x37b/0xa30 mm/memory.c:6734 do_user_addr_fault+0x5a3/0x12f0 arch/x86/mm/fault.c:1343 handle_page_fault arch/x86/mm/fault.c:1483 [inline] exc_page_fault+0x6f/0xd0 arch/x86/mm/fault.c:1536 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595 RIP: 0033:0x7fb8abeaecdf Code: 24 08 75 09 48 89 b8 e8 02 00 00 eb 05 e8 39 4c fc ff 8b 44 24 14 48 8b 3c 24 89 05 03 4c 07 00 8b 44 24 10 89 83 e0 02 00 00 21 5e ff ff 48 89 df e8 2d 5e ff ff 0f 10 44 24 38 48 8b 44 24 RSP: 002b:00007ffcf53ab860 EFLAGS: 00010246 RAX: 00000000000000c3 RBX: 0000559c476a1e60 RCX: 0000559c476a92a0 RDX: 00007fb8abf23450 RSI: 0000000000000001 RDI: 0000559c476ae6d0 RBP: 0000000000000001 R08: 00007ffcf53ab860 R09: 0000559c476a1e60 R10: 0000000000000000 R11: 0000000000000202 R12: 0000559c476a9040 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 18794 Comm: syz.6.2618 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:trace_hrtimer_expire_entry include/trace/events/timer.h:261 [inline] RIP: 0010:__run_hrtimer kernel/time/hrtimer.c:2029 [inline] RIP: 0010:__hrtimer_run_queues+0x732/0x9c0 kernel/time/hrtimer.c:2096 Code: 84 ed 0f 85 99 fa ff ff e8 2b 48 14 00 48 8d 3d 24 9c e8 0e 67 48 0f b9 3a e9 83 fa ff ff e8 15 48 14 00 e8 b0 4d f8 ff 31 ff <89> c5 89 c6 e8 55 42 14 00 40 84 ed 0f 85 99 fc ff ff e8 f7 47 14 RSP: 0018:ffffc90000007e98 EFLAGS: 00000046 RAX: 0000000000000001 RBX: dffffc0000000000 RCX: ffffffff81f503d4 RDX: 0000000000000000 RSI: ffffffff8c1cf380 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: ffffc90000007ff8 R12: ffff88803505e300 R13: ffffffff89a0b3f0 R14: ffff8880b8428540 R15: ffff8880b8428590 FS: 00007f2d2849e6c0(0000) GS:ffff888124335000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31a0eff8 CR3: 00000000593fd000 CR4: 0000000000350ef0 Call Trace: hrtimer_interrupt+0x3e5/0x940 kernel/time/hrtimer.c:2215 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1051 [inline] __sysvec_apic_timer_interrupt+0x109/0x470 arch/x86/kernel/apic/apic.c:1068 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline] sysvec_apic_timer_interrupt+0x9e/0xc0 arch/x86/kernel/apic/apic.c:1062 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:179 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x80 kernel/locking/spinlock.c:198 Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 46 d1 4f f6 48 89 df e8 ce 20 50 f6 f7 c5 00 02 00 00 75 23 9c 58 f6 c4 02 75 37 01 00 00 00 e8 15 2f 3f f6 65 8b 05 1e 99 79 08 85 c0 74 16 5b RSP: 0018:ffffc90005e47b28 EFLAGS: 00000246 RAX: 0000000000000046 RBX: ffffffff9b1e63d8 RCX: ffffffff8211911f RDX: 0000000000000000 RSI: ffffffff8c1cf380 RDI: ffffffff8b951722 RBP: 0000000000000286 R08: 0000000000000000 R09: fffffbfff21b37f2 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff9b1e6140 R13: 0000000000000001 R14: ffffc90005e47c80 R15: 7fffffffffffffff class_raw_spinlock_irqsave_destructor include/linux/spinlock.h:571 [inline] __do_adjtimex+0x892/0xe70 kernel/time/timekeeping.c:2952 do_adjtimex+0xa0/0x370 kernel/time/timekeeping.c:2995 do_clock_adjtime kernel/time/posix-timers.c:1169 [inline] __do_sys_clock_adjtime+0x177/0x290 kernel/time/posix-timers.c:1181 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2d2759ce59 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2d2849e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000131 RAX: ffffffffffffffda RBX: 00007f2d27816180 RCX: 00007f2d2759ce59 RDX: 0000000000000000 RSI: 0000200000000040 RDI: 0000000000000000 RBP: 00007f2d27632e6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f2d27816218 R14: 00007f2d27816180 R15: 00007ffe5cda6c68