watchdog: BUG: soft lockup - CPU#1 stuck for 26s! [kworker/1:0:23]
Modules linked in:
irq event stamp: 40864
hardirqs last  enabled at (40863): [<ffff80008ae5abb8>] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline]
hardirqs last  enabled at (40863): [<ffff80008ae5abb8>] _raw_spin_unlock_irq+0x30/0x80 kernel/locking/spinlock.c:202
hardirqs last disabled at (40864): [<ffff80008ae44484>] __schedule+0x2bc/0x24b4 kernel/sched/core.c:6625
softirqs last  enabled at (27800): [<ffff80008002189c>] softirq_handle_end kernel/softirq.c:399 [inline]
softirqs last  enabled at (27800): [<ffff80008002189c>] __do_softirq+0xac8/0xce4 kernel/softirq.c:582
softirqs last disabled at (27665): [<ffff80008002ab48>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81
CPU: 1 PID: 23 Comm: kworker/1:0 Tainted: G    B              6.8.0-rc6-syzkaller-g381f163531d8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Workqueue: ipv6_addrconf addrconf_dad_work
pstate: 20400005 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : queued_write_lock_slowpath+0x1d4/0x880 kernel/locking/qrwlock.c:85
lr : instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
lr : atomic_or include/linux/atomic/atomic-instrumented.h:934 [inline]
lr : queued_write_lock_slowpath+0x180/0x880 kernel/locking/qrwlock.c:81
sp : ffff800093a672e0
x29: ffff800093a67360 x28: ffff80008ebe9008 x27: 00000000000000ff
x26: 0000000000000100 x25: 1ffff0001274ce66 x24: 1ffff0001274ce60
x23: dfff800000000000 x22: 1ffff0001234a73c x21: ffff800091a539e4
x20: ffff800093a67330 x19: ffff800091a539e0 x18: 1fffe00036804396
x17: 0000000000000000 x16: ffff8000809fd9b0 x15: 0000000000000001
x14: 1ffff0001234a73c x13: 0000000000000000 x12: 0000000000000000
x11: ffff70001234a73d x10: 1ffff0001234a73c x9 : 0000000000000000
x8 : 00000000000001ff x7 : 0000000000000000 x6 : ffff800088f58f68
x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff80008ae5cc1c
x2 : 0000000000000001 x1 : 0000000000000004 x0 : 0000000000000001
Call trace:
 __cmpwait_case_32 arch/arm64/include/asm/cmpxchg.h:231 [inline]
 __cmpwait arch/arm64/include/asm/cmpxchg.h:257 [inline]
 queued_write_lock_slowpath+0x1d4/0x880 kernel/locking/qrwlock.c:85
 queued_write_lock include/asm-generic/qrwlock.h:101 [inline]
 do_raw_write_lock+0x498/0x560 kernel/locking/spinlock_debug.c:211
 __raw_write_lock_bh include/linux/rwlock_api_smp.h:203 [inline]
 _raw_write_lock_bh+0x50/0x60 kernel/locking/spinlock.c:334
 ___neigh_create+0xe74/0x2564 net/core/neighbour.c:682
 __neigh_create+0x44/0x58 net/core/neighbour.c:737
 ip6_finish_output2+0x1cf4/0x1ec8 net/ipv6/ip6_output.c:128
 ip6_finish_output+0x428/0x7a0 net/ipv6/ip6_output.c:222
 NF_HOOK_COND include/linux/netfilter.h:303 [inline]
 ip6_output+0x270/0x594 net/ipv6/ip6_output.c:243
 dst_output include/net/dst.h:451 [inline]
 NF_HOOK include/linux/netfilter.h:314 [inline]
 ndisc_send_skb+0xaa8/0x14f0 net/ipv6/ndisc.c:509
 ndisc_send_ns+0xd4/0x164 net/ipv6/ndisc.c:667
 addrconf_dad_work+0x988/0x1350 net/ipv6/addrconf.c:4232
 process_one_work+0x694/0x1204 kernel/workqueue.c:2633
 process_scheduled_works kernel/workqueue.c:2706 [inline]
 worker_thread+0x938/0xef4 kernel/workqueue.c:2787
 kthread+0x288/0x310 kernel/kthread.c:388
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860