watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.1:4798]
Modules linked in:
irq event stamp: 92575
hardirqs last  enabled at (92574): [<ffff800011947a48>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:81 [inline]
hardirqs last  enabled at (92574): [<ffff800011947a48>] exit_to_kernel_mode+0x100/0x178 arch/arm64/kernel/entry-common.c:91
hardirqs last disabled at (92575): [<ffff800011947c90>] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227
softirqs last  enabled at (85320): [<ffff8000080300b4>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31
softirqs last disabled at (85503): [<ffff8000081b573c>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (85503): [<ffff8000081b573c>] invoke_softirq kernel/softirq.c:439 [inline]
softirqs last disabled at (85503): [<ffff8000081b573c>] __irq_exit_rcu+0x28c/0x534 kernel/softirq.c:636
CPU: 0 PID: 4798 Comm: syz-executor.1 Not tainted 5.15.114-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __sanitizer_cov_trace_pc+0x18/0xa4 kernel/kcov.c:193
lr : __list_del_entry include/linux/list.h:135 [inline]
lr : list_move_tail include/linux/list.h:227 [inline]
lr : fq_pie_qdisc_dequeue+0x290/0x874 net/sched/sch_fq_pie.c:248
sp : ffff800008007120
x29: ffff8000080071a0 x28: ffff000129523150 x27: 1fffe000252a4628
x26: dfff800000000000 x25: ffff0000c99b72e8 x24: ffff0000c99b72f0
x23: ffff000129523140 x22: ffff0000c99b72e0 x21: ffff0000c99b72e0
x20: 0000000000000000 x19: 0000000000000000 x18: 0000000000000503
x17: ff8080000ff4d74c x16: 0000000000000000 x15: ffff80000ff4d74c
x14: 0000000000000001 x13: ffffffffffffffff x12: 0000000000000100
x11: ff80800010093940 x10: 0000000000000000 x9 : ffff800016ec0000
x8 : ffff0000d0f80000 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000082e91ec
x2 : ffff000129523150 x1 : 0000000000000000 x0 : 0000000000000001
Call trace:
 __sanitizer_cov_trace_pc+0x18/0xa4 kernel/kcov.c:193
 dequeue_skb net/sched/sch_generic.c:292 [inline]
 qdisc_restart net/sched/sch_generic.c:397 [inline]
 __qdisc_run+0x1ec/0x1fc0 net/sched/sch_generic.c:415
 __dev_xmit_skb net/core/dev.c:3879 [inline]
 __dev_queue_xmit+0x1068/0x2a6c net/core/dev.c:4190
 dev_queue_xmit+0x24/0x34 net/core/dev.c:4258
 neigh_connected_output+0x334/0x378 net/core/neighbour.c:1553
 neigh_output include/net/neighbour.h:516 [inline]
 ip6_finish_output2+0x1344/0x1c48 net/ipv6/ip6_output.c:126
 __ip6_finish_output+0x518/0x67c net/ipv6/ip6_output.c:191
 ip6_finish_output+0x40/0x218 net/ipv6/ip6_output.c:201
 NF_HOOK_COND include/linux/netfilter.h:296 [inline]
 ip6_output+0x270/0x594 net/ipv6/ip6_output.c:224
 dst_output include/net/dst.h:449 [inline]
 NF_HOOK include/linux/netfilter.h:307 [inline]
 ndisc_send_skb+0xbf8/0x1788 net/ipv6/ndisc.c:508
 ndisc_send_rs+0x494/0x5fc net/ipv6/ndisc.c:702
 addrconf_rs_timer+0x308/0x5a8 net/ipv6/addrconf.c:3932
 call_timer_fn+0x19c/0x8f0 kernel/time/timer.c:1421
 expire_timers kernel/time/timer.c:1466 [inline]
 __run_timers+0x554/0x718 kernel/time/timer.c:1737
 run_timer_softirq+0x7c/0x114 kernel/time/timer.c:1750
 __do_softirq+0x344/0xe20 kernel/softirq.c:558
 do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
 invoke_softirq kernel/softirq.c:439 [inline]
 __irq_exit_rcu+0x28c/0x534 kernel/softirq.c:636
 irq_exit+0x14/0x88 kernel/softirq.c:660
 handle_domain_irq+0xf4/0x178 kernel/irq/irqdesc.c:710
 gic_handle_irq+0x78/0x1c8 drivers/irqchip/irq-gic-v3.c:757
 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:899
 do_interrupt_handler+0x74/0x94 arch/arm64/kernel/entry-common.c:267
 el1_interrupt+0x30/0x58 arch/arm64/kernel/entry-common.c:442
 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:458
 el1h_64_irq+0x78/0x7c arch/arm64/kernel/entry.S:580
 __sanitizer_cov_trace_pc+0x0/0xa4 kernel/audit_tree.c:174
 zap_pte_range mm/memory.c:1370 [inline]
 zap_pmd_range mm/memory.c:1494 [inline]
 zap_pud_range mm/memory.c:1523 [inline]
 zap_p4d_range mm/memory.c:1544 [inline]
 unmap_page_range+0xc44/0x19d4 mm/memory.c:1565
 unmap_single_vma+0x13c/0x1e4 mm/memory.c:1610
 unmap_vmas+0x1ac/0x320 mm/memory.c:1642
 exit_mmap+0x2c8/0x558 mm/mmap.c:3186
 __mmput+0xec/0x3b8 kernel/fork.c:1118
 mmput+0x80/0xc8 kernel/fork.c:1139
 exit_mm+0x5f0/0x70c kernel/exit.c:548
 do_exit+0x4f0/0x2134 kernel/exit.c:859
 do_group_exit+0x110/0x268 kernel/exit.c:994
 get_signal+0x634/0x1550 kernel/signal.c:2889
 do_signal arch/arm64/kernel/signal.c:890 [inline]
 do_notify_resume+0x3d0/0x32b8 arch/arm64/kernel/signal.c:943
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline]
 el0_svc+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:597
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584