watchdog: BUG: soft lockup - CPU#1 stuck for 122s! [syz.4.922:5839]
Modules linked in:
CPU: 1 PID: 5839 Comm: syz.4.922 Tainted: G W 6.1.90-syzkaller-00026-g514bdc80b9d2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:update_stack_state+0x3bf/0x460 arch/x86/kernel/unwind_frame.c:252
Code: 37 ee 84 00 65 48 8b 05 cf 91 ca 7e 49 39 06 74 0d 48 89 df e8 42 fc ff ff 49 89 c6 eb 19 48 89 d8 48 c1 e8 03 42 80 3c 38 00 <74> 08 48 89 df e8 07 ee 84 00 4c 8b 33 48 8b 5d d0 48 83 c3 48 48
RSP: 0018:ffffc900001afdf0 EFLAGS: 00000246
RAX: 1ffff92000184ee5 RBX: ffffc90000c27728 RCX: 1ffff92000035ff3
RDX: 1ffff92000035fea RSI: ffffc90000c27720 RDI: ffffc900001aff98
RBP: ffffc900001afea8 R08: ffffc900001b0028 R09: 000000000000001c
R10: ffffc900001b0030 R11: dffffc0000000001 R12: 1ffff92000035ff0
R13: 0000000000000000 R14: ffffc900001aff68 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd66329098 CR3: 000000013b118000 CR4: 00000000003506a0
DR0: 0000000020000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
unwind_next_frame+0x3cb/0x700 arch/x86/kernel/unwind_frame.c:315
arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
kasan_save_stack+0x3b/0x60 mm/kasan/common.c:45
__kasan_record_aux_stack+0xb4/0xc0 mm/kasan/generic.c:486
kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:496
__call_rcu_common kernel/rcu/tree.c:2806 [inline]
call_rcu+0xee/0x1340 kernel/rcu/tree.c:2925
call_rcu_hurry include/linux/rcupdate.h:117 [inline]
dst_release+0x9b/0xe0 net/core/dst.c:177
refdst_drop include/net/dst.h:256 [inline]
skb_dst_drop include/net/dst.h:268 [inline]
__dev_queue_xmit+0xa42/0x36e0 net/core/dev.c:4255
dev_queue_xmit include/linux/netdevice.h:3076 [inline]
neigh_hh_output include/net/neighbour.h:536 [inline]
neigh_output include/net/neighbour.h:550 [inline]
ip6_finish_output2+0x11f1/0x1840 net/ipv6/ip6_output.c:134
__ip6_finish_output net/ipv6/ip6_output.c:201 [inline]
ip6_finish_output+0x50f/0xa60 net/ipv6/ip6_output.c:212
NF_HOOK_COND include/linux/netfilter.h:294 [inline]
ip6_output+0x1f7/0x4d0 net/ipv6/ip6_output.c:233
dst_output include/net/dst.h:444 [inline]
NF_HOOK include/linux/netfilter.h:305 [inline]
ndisc_send_skb+0x7cf/0xdc0 net/ipv6/ndisc.c:509
ndisc_send_rs+0x47d/0x5f0 net/ipv6/ndisc.c:719
addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3984
call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1510
expire_timers kernel/time/timer.c:1555 [inline]
__run_timers+0x72a/0xa10 kernel/time/timer.c:1826
run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1839
__do_softirq+0x1d8/0x661 kernel/softirq.c:617
invoke_softirq kernel/softirq.c:472 [inline]
__irq_exit_rcu+0x50/0xf0 kernel/softirq.c:700
irq_exit_rcu+0x9/0x10 kernel/softirq.c:712
sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:finish_task_switch+0x16f/0x7b0 kernel/sched/core.c:5295
Code: 74 08 4c 89 ff e8 01 65 6c 00 49 8b 1f 48 85 db 4c 8b 6d c0 0f 85 ce 00 00 00 4c 89 e7 e8 19 0e cf 03 fb 49 8d 9d 48 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:ffffc90000c27020 EFLAGS: 00000282
RAX: 0000000080000001 RBX: ffff88813c0a4808 RCX: 0000000000000002
RDX: 0000000040000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc90000c27070 R08: ffffffff819b5780 R09: fffffbfff0ee512f
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f7137c80
R13: ffff88813c0a3cc0 R14: 1ffff1103ee270fc R15: ffff8881f71387e0
context_switch kernel/sched/core.c:5421 [inline]
__schedule+0xcaf/0x1550 kernel/sched/core.c:6744
preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:7056
raw_irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:396
irqentry_exit+0x30/0x40 kernel/entry/common.c:439
sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:pte_lockptr include/linux/mm.h:2631 [inline]
RIP: 0010:zap_pte_range mm/memory.c:1433 [inline]
RIP: 0010:zap_pmd_range mm/memory.c:1589 [inline]
RIP: 0010:zap_pud_range mm/memory.c:1618 [inline]
RIP: 0010:zap_p4d_range mm/memory.c:1639 [inline]
RIP: 0010:unmap_page_range+0xadd/0x2480 mm/memory.c:1660
Code: 90 fb ff ff e8 24 2c c5 ff ba 10 00 00 00 48 8d bc 24 e0 01 00 00 31 f6 e8 c0 52 0c 00 48 8b 84 24 c0 00 00 00 42 80 3c 30 00 <48> 8b 5c 24 50 74 08 48 89 df e8 84 50 0c 00 4c 8b 3b 31 c0 48 89
RSP: 0018:ffffc90000c27320 EFLAGS: 00000246
RAX: 1ffff110262251b8 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc90000c27510
RBP: ffffc90000c27570 R08: dffffc0000000000 R09: ffffc90000c27500
R10: 0000000000000000 R11: dffffc0000000001 R12: 00007f0df715b000
R13: ffffc90000c27630 R14: dffffc0000000000 R15: 00007f0df71fb000
unmap_single_vma mm/memory.c:1706 [inline]
unmap_vmas+0x4e4/0x660 mm/memory.c:1746
exit_mmap+0x2d1/0x940 mm/mmap.c:3334
__mmput+0x95/0x310 kernel/fork.c:1298
mmput+0x56/0x170 kernel/fork.c:1321
exit_mm kernel/exit.c:566 [inline]
do_exit+0xb29/0x2b80 kernel/exit.c:862
do_group_exit+0x21a/0x2d0 kernel/exit.c:1025
get_signal+0x169d/0x1820 kernel/signal.c:2880
arch_do_signal_or_restart+0xb0/0x16f0 arch/x86/kernel/signal.c:871
exit_to_user_mode_loop+0x74/0xa0 kernel/entry/common.c:174
exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210
irqentry_exit_to_user_mode+0x9/0x10 kernel/entry/common.c:316
irqentry_exit+0x12/0x40 kernel/entry/common.c:419
sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0033:0x7f0df7d79e79
Code: Unable to access opcode bytes at 0x7f0df7d79e4f.
RSP: 002b:00007f0df8bd80e8 EFLAGS: 00000246
RAX: 0000000000000001 RBX: 00007f0df7f15f88 RCX: 00007f0df7d79e79
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f0df7f15f8c
RBP: 00007f0df7f15f80 R08: 00007ffde95f40b0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0df7f15f8c
R13: 0000000000000000 R14: 00007ffde949a630 R15: 00007ffde949a718
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5960 Comm: syz.3.937 Tainted: G W 6.1.90-syzkaller-00026-g514bdc80b9d2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:preempt_count_add+0x1/0x1a0 kernel/sched/core.c:5881
Code: fb bf 01 00 00 00 e8 1e 00 00 00 48 89 df e8 26 ec cf 03 bf 01 00 00 00 e8 ac 01 00 00 5b 5d c3 66 0f 1f 84 00 00 00 00 00 55 <48> 89 e5 41 57 41 56 53 89 fb 48 c7 c0 60 10 97 87 48 c1 e8 03 49
RSP: 0018:ffffc900000071f8 EFLAGS: 00000002
RAX: 0000000000000001 RBX: ffffc90000007248 RCX: ffffffff85200f0f
RDX: 0000000000000000 RSI: ffffffff8567e0e0 RDI: 0000000000010000
RBP: ffffc90000007218 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 00007f474a0776c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f47491ffd58 CR3: 000000010dd34000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
sysvec_apic_timer_interrupt+0x3c/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:unwind_next_frame+0x3af/0x700 arch/x86/kernel/unwind_frame.c:311
Code: eb 35 65 48 8b 05 f1 98 ca 7e 48 39 45 98 74 0b 48 8b 7d d0 e8 62 03 00 00 eb 1c 48 8b 5d d0 48 89 d8 48 c1 e8 03 80 3c 10 00 <74> 08 48 89 df e8 27 f5 84 00 48 8b 03 4c 89 f7 48 89 45 d0 48 89
RSP: 0018:ffffc900000072f8 EFLAGS: 00000246
RAX: 1ffff92000205fe4 RBX: ffffc9000102ff20 RCX: ffffffff877a1000
RDX: dffffc0000000000 RSI: ffffffff8518d91b RDI: ffffc9000102ff48
RBP: ffffc90000007370 R08: ffffc90000007468 R09: 0000000000000020
R10: ffffc90000007470 R11: dffffc0000000001 R12: 0000000000000000
R13: ffffc900000073d0 R14: ffffc90000007380 R15: 1ffff92000000e70
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:45 [inline]
kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
kasan_save_alloc_info+0x1f/0x30 mm/kasan/generic.c:505
____kasan_kmalloc mm/kasan/common.c:379 [inline]
__kasan_kmalloc+0x9c/0xb0 mm/kasan/common.c:388
kasan_kmalloc include/linux/kasan.h:212 [inline]
kmalloc_trace+0x44/0xa0 mm/slab_common.c:1052
kmalloc include/linux/slab.h:556 [inline]
kzalloc include/linux/slab.h:692 [inline]
ref_tracker_alloc+0x138/0x450 lib/ref_tracker.c:85
__netdev_tracker_alloc include/linux/netdevice.h:4063 [inline]
netdev_hold include/linux/netdevice.h:4092 [inline]
dst_init+0xe1/0x400 net/core/dst.c:52
dst_alloc+0x18a/0x1e0 net/core/dst.c:96
ip6_dst_alloc net/ipv6/route.c:345 [inline]
icmp6_dst_alloc+0xf8/0x510 net/ipv6/route.c:3266
ndisc_send_skb+0x28b/0xdc0 net/ipv6/ndisc.c:489
ndisc_send_rs+0x47d/0x5f0 net/ipv6/ndisc.c:719
addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3984
call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1510
expire_timers kernel/time/timer.c:1555 [inline]
__run_timers+0x72a/0xa10 kernel/time/timer.c:1826
run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1839
__do_softirq+0x1d8/0x661 kernel/softirq.c:617
invoke_softirq kernel/softirq.c:472 [inline]
__irq_exit_rcu+0x50/0xf0 kernel/softirq.c:700
irq_exit_rcu+0x9/0x10 kernel/softirq.c:712
sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:finish_task_switch+0x16f/0x7b0 kernel/sched/core.c:5295
Code: 74 08 4c 89 ff e8 01 65 6c 00 49 8b 1f 48 85 db 4c 8b 6d c0 0f 85 ce 00 00 00 4c 89 e7 e8 19 0e cf 03 fb 49 8d 9d 48 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:ffffc9000102f6e0 EFLAGS: 00000282
RAX: 0000000080000001 RBX: ffff8881125a5c48 RCX: 0000000000000002
RDX: 0000000040000002 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc9000102f730 R08: ffffffff819b5780 R09: fffffbfff0ee512f
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f7037c80
R13: ffff8881125a5100 R14: 1ffff1103ee070fc R15: ffff8881f70387e0
context_switch kernel/sched/core.c:5421 [inline]
__schedule+0xcaf/0x1550 kernel/sched/core.c:6744
preempt_schedule_common+0x9b/0xf0 kernel/sched/core.c:6913
preempt_schedule+0xd9/0xe0 kernel/sched/core.c:6937
preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34
__raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_unlock+0x5f/0x70 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
fasync_insert_entry+0x223/0x2e0 fs/fcntl.c:934
fasync_add_entry fs/fcntl.c:957 [inline]
fasync_helper+0x52/0xa0 fs/fcntl.c:975
perf_fasync+0x84/0xa0 kernel/events/core.c:6478
ioctl_fioasync fs/ioctl.c:379 [inline]
do_vfs_ioctl+0x122a/0x29a0 fs/ioctl.c:791
__do_sys_ioctl fs/ioctl.c:868 [inline]
__se_sys_ioctl+0x99/0x190 fs/ioctl.c:856
__x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:856
x64_sys_call+0x98/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f4749379e79
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:00007f474a077038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f4749515f80 RCX: 00007f4749379e79
RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000003
RBP: 00007f47493e793e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f4749515f80 R15: 00007ffdc3459048