watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz.4.97:787] Modules linked in: CPU: 1 PID: 787 Comm: syz.4.97 Not tainted 5.15.168-syzkaller-00719-g101e665d55a8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:unwind_get_return_address+0x6/0x90 arch/x86/kernel/unwind_frame.c:15 Code: 86 ad 86 80 e1 07 80 c1 03 38 c1 7c af 48 c7 c7 40 86 ad 86 e8 5b b0 7d 00 eb a1 cc cc cc cc cc cc cc cc cc 55 48 89 e5 41 57 <41> 56 53 48 89 fb 49 be 00 00 00 00 00 fc ff df 48 89 f8 48 c1 e8 RSP: 0018:ffffc900001d0528 EFLAGS: 00000202 RAX: 00000000001d0501 RBX: ffffc900001d0540 RCX: 00000000001d0501 RDX: 1ffff9200003a0aa RSI: ffffc900001d06b0 RDI: ffffc900001d0540 RBP: ffffc900001d0530 R08: ffffc900001d0628 R09: 0000000000000000 R10: ffffc900001d0630 R11: dffffc0000000001 R12: ffff88810d284f00 R13: ffffffff815f8580 R14: ffffc900001d0620 R15: 0000000000000000 FS: 00007f6b25c486c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3251aff8 CR3: 0000000110479000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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:38 [inline] kasan_set_track mm/kasan/common.c:45 [inline] set_alloc_info mm/kasan/common.c:433 [inline] ____kasan_kmalloc+0xdb/0x110 mm/kasan/common.c:512 __kasan_kmalloc+0x9/0x10 mm/kasan/common.c:521 kasan_kmalloc include/linux/kasan.h:227 [inline] kmem_cache_alloc_trace+0x115/0x210 mm/slub.c:3267 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 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline] sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:676 RIP: 0010:finish_task_switch+0x16f/0x7b0 kernel/sched/core.c:5024 Code: 74 08 4c 89 ff e8 f1 72 65 00 49 8b 1f 48 85 db 4c 8b 6d c0 0f 85 ce 00 00 00 4c 89 e7 e8 09 07 9a 03 fb 49 8d 9d 38 0b 00 00 <48> 89 d8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 0f b6 04 30 RSP: 0018:ffffc90000d9fbc0 EFLAGS: 00000282 RAX: 0000000080000001 RBX: ffff88810d285a38 RCX: 0000000000000002 RDX: 0000000040000002 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffffc90000d9fc10 R08: ffffffff819205d9 R09: fffffbfff0e5346b R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f71378c0 R13: ffff88810d284f00 R14: 1ffff1103ee27081 R15: ffff8881f7138408 context_switch kernel/sched/core.c:5155 [inline] __schedule+0xcd4/0x1590 kernel/sched/core.c:6512 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:6916 irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:398 irqentry_exit+0x30/0x40 kernel/entry/common.c:432 sysvec_apic_timer_interrupt+0x64/0xc0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:676 RIP: 0010:__do_sys_ioctl fs/ioctl.c:873 [inline] RIP: 0010:__se_sys_ioctl+0x9b/0x190 fs/ioctl.c:860 Code: cb 8a b0 ff 48 c7 c0 f7 ff ff ff e9 f9 00 00 00 4c 89 ef 44 89 fe 4d 89 f7 44 89 f2 4c 89 65 c8 4c 89 e1 e8 97 0f 00 00 89 c3 fd fd ff ff 89 c6 e8 49 8e b0 ff 81 fb fd fd ff ff 0f 85 88 00 RSP: 0018:ffffc90000d9fea8 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000080000 RDX: ffffc9000735f000 RSI: 000000000000001b RDI: 000000000000001c RBP: ffffc90000d9fee0 R08: ffffffff81bffc80 R09: ffffed102124ce87 R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000200006c0 R13: ffff88811b384180 R14: 0000000000005452 R15: 0000000000005452 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:860 x64_sys_call+0x98/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f6b275cf819 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:00007f6b25c48038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f6b27786fa0 RCX: 00007f6b275cf819 RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000005 RBP: 00007f6b2764275e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f6b27786fa0 R15: 00007ffc2bac8c68 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 492 Comm: syz.3.40 Not tainted 5.15.168-syzkaller-00719-g101e665d55a8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:kasan_check_range+0x1c1/0x2a0 mm/kasan/generic.c:189 Code: 8d 5d 07 4d 85 ed 49 0f 49 dd 48 83 e3 f8 49 29 dd 74 12 41 80 39 00 0f 85 a6 00 00 00 49 ff c1 49 ff cd 75 ee 5b 41 5c 41 5d <41> 5e 41 5f 5d c3 45 84 f6 75 61 41 f7 c6 00 ff 00 00 75 5d 41 f7 RSP: 0018:ffffc900000070f0 EFLAGS: 00000056 RAX: 0000003de3c94301 RBX: 0000003de3c943cd RCX: ffffffff8196049f RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff88812c2138a0 RBP: ffffc90000007100 R08: dffffc0000000000 R09: ffffed1025842715 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88812c213758 R13: 1ffff92000000e30 R14: ffffed1025842715 R15: ffff88812c213820 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe2313454e8 CR3: 000000010d035000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37 instrument_atomic_write include/linux/instrumented.h:86 [inline] cpu_clock_event_update kernel/events/core.c:10814 [inline] cpu_clock_event_read+0x2f/0x50 kernel/events/core.c:10846 perf_swevent_hrtimer+0x115/0x560 kernel/events/core.c:10729 __run_hrtimer kernel/time/hrtimer.c:1687 [inline] __hrtimer_run_queues+0x41a/0xad0 kernel/time/hrtimer.c:1751 hrtimer_interrupt+0x40c/0xaa0 kernel/time/hrtimer.c:1813 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline] __sysvec_apic_timer_interrupt+0xfd/0x3c0 arch/x86/kernel/apic/apic.c:1102 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline] sysvec_apic_timer_interrupt+0x53/0xc0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:676 RIP: 0010:task_stack_page include/linux/sched/task_stack.h:21 [inline] RIP: 0010:last_frame arch/x86/kernel/unwind_frame.c:82 [inline] RIP: 0010:is_last_frame arch/x86/kernel/unwind_frame.c:87 [inline] RIP: 0010:is_last_task_frame arch/x86/kernel/unwind_frame.c:156 [inline] RIP: 0010:unwind_next_frame+0x10f/0x700 arch/x86/kernel/unwind_frame.c:266 Code: 74 12 48 89 df e8 51 ae 7d 00 48 ba 00 00 00 00 00 fc ff df 48 89 5d 88 48 8b 03 48 89 45 98 48 8d 58 20 48 89 d8 48 c1 e8 03 <80> 3c 10 00 74 12 48 89 df e8 23 ae 7d 00 48 ba 00 00 00 00 00 fc RSP: 0018:ffffc900000076d8 EFLAGS: 00000a06 RAX: 1ffff11022adac5c RBX: ffff8881156d62e0 RCX: 0000000000007701 RDX: dffffc0000000000 RSI: ffffffff8160b0fb RDI: ffffc90000007760 RBP: ffffc90000007750 R08: ffffc90000007848 R09: 0000000000000007 R10: ffffc90000007850 R11: dffffc0000000001 R12: 0000000000000000 R13: ffffffff815f8580 R14: ffffc90000007760 R15: 1ffff92000000eec arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:45 [inline] set_alloc_info mm/kasan/common.c:433 [inline] ____kasan_kmalloc+0xdb/0x110 mm/kasan/common.c:512 __kasan_kmalloc+0x9/0x10 mm/kasan/common.c:521 kasan_kmalloc include/linux/kasan.h:227 [inline] __kmalloc_track_caller+0x139/0x260 mm/slub.c:4950 kmalloc_reserve net/core/skbuff.c:357 [inline] __alloc_skb+0x10c/0x550 net/core/skbuff.c:428 alloc_skb include/linux/skbuff.h:1183 [inline] ndisc_alloc_skb+0xf3/0x2d0 net/ipv6/ndisc.c:423 ndisc_send_rs+0x26c/0x6a0 net/ipv6/ndisc.c:689 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 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline] sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:676 RIP: 0010:zap_pte_range mm/memory.c:1395 [inline] RIP: 0010:zap_pmd_range mm/memory.c:1562 [inline] RIP: 0010:zap_pud_range mm/memory.c:1591 [inline] RIP: 0010:zap_p4d_range mm/memory.c:1612 [inline] RIP: 0010:unmap_page_range+0x9c8/0x1ed0 mm/memory.c:1633 Code: 00 48 8d bc 24 a0 01 00 00 31 f6 e8 42 8e 0b 00 48 8b 84 24 b0 00 00 00 42 80 3c 20 00 74 08 48 89 df e8 0b 8c 0b 00 4c 8b 3b <31> c0 48 89 84 24 e8 00 00 00 31 ff 4c 89 fe e8 14 38 c9 ff 4d 85 RSP: 0018:ffffc90000bb74c0 EFLAGS: 00000246 RAX: 1ffff110258f1f4e RBX: ffff88812c78fa70 RCX: 0000000000000000 RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc90000bb7670 RBP: ffffc90000bb76f0 R08: dffffc0000000000 R09: ffffc90000bb7660 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: 0400000000000080 R14: 1ffff110258f2d6e R15: 000000012c796067 unmap_single_vma mm/memory.c:1678 [inline] unmap_vmas+0x389/0x560 mm/memory.c:1710 exit_mmap+0x3e4/0x940 mm/mmap.c:3215 __mmput+0x95/0x310 kernel/fork.c:1179 mmput+0x5b/0x170 kernel/fork.c:1202 exit_mm kernel/exit.c:554 [inline] do_exit+0xb9c/0x2ca0 kernel/exit.c:867 do_group_exit+0x141/0x310 kernel/exit.c:1002 get_signal+0x7a3/0x1630 kernel/signal.c:2907 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 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x26/0x160 kernel/entry/common.c:307 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fad6ab59819 Code: Unable to access opcode bytes at RIP 0x7fad6ab597ef. RSP: 002b:00007fad691d2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: fffffffffffffff2 RBX: 00007fad6ad10fa0 RCX: 00007fad6ab59819 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 00007fad6abcc75e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fad6ad10fa0 R15: 00007ffe355ba248