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SubjectRe: [syzbot] BUG: unable to handle kernel paging request in p9_client_disconnect

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
BUG: unable to handle kernel paging request in rhltable_lookup

Unable to handle kernel paging request at virtual address ffff00082200ccf8
Mem abort info:
ESR = 0x0000000096000005
EC = 0x25: DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
FSC = 0x05: level 1 translation fault
Data abort info:
ISV = 0, ISS = 0x00000005
CM = 0, WnR = 0
swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000001c54db000
[ffff00082200ccf8] pgd=180000023fff8003, p4d=180000023fff8003, pud=0000000000000000
Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 13 Comm: kworker/0:1 Not tainted 6.1.0-rc2-syzkaller-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: ipv6_addrconf addrconf_dad_work
pstate: 00400005 (nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : rht_ptr_rcu include/linux/rhashtable.h:369 [inline]
pc : __rhashtable_lookup include/linux/rhashtable.h:599 [inline]
pc : rhltable_lookup+0xd4/0x398 include/linux/rhashtable.h:688
lr : rht_bucket include/linux/rhashtable.h:290 [inline]
lr : __rhashtable_lookup include/linux/rhashtable.h:597 [inline]
lr : rhltable_lookup+0xc8/0x398 include/linux/rhashtable.h:688
sp : ffff800008003d60
x29: ffff800008003d80 x28: ffff80000d95e000 x27: 0000000000000000
x26: 0000000000000002 x25: 0000000000000000 x24: ffff00082200ccf8
x23: ffff80000d95e000 x22: ffff00082200ccf9 x21: ffff0000c920b800
x20: ffff0000c93597b0 x19: ffff0000cb81b834 x18: 00000000000000c9
x17: ffff8001f1cee000 x16: 0000000000000101 x15: 0000000000000100
x14: 0000000000000000 x13: 000000000000000c x12: ffff80000d65f7d0
x11: ff8080000bce0278 x10: 0000000000000000 x9 : ffff80000bce0278
x8 : ffff00082200cc78 x7 : 0000000000000000 x6 : ffff80000bcd9c94
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002
x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
rhltable_lookup+0xd4/0x398 include/linux/rhashtable.h:688
sta_info_hash_lookup net/mac80211/sta_info.c:195 [inline]
sta_info_get_by_addrs+0x64/0xf8 net/mac80211/sta_info.c:320
ieee80211_tx_status+0xd8/0x1ac net/mac80211/status.c:1096
ieee80211_tasklet_handler+0x5c/0x110 net/mac80211/main.c:319
tasklet_action+0x30/0x3c kernel/softirq.c:818
____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79
call_on_irq_stack+0x2c/0x54 arch/arm64/kernel/entry.S:889
do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:84
do_softirq+0xac/0x108 kernel/softirq.c:472
__local_bh_enable_ip+0x18c/0x1a4 kernel/softirq.c:396
local_bh_enable+0x28/0x34 include/linux/bottom_half.h:33
rcu_read_unlock_bh include/linux/rcupdate.h:808 [inline]
ip6_finish_output2+0xa1c/0xbec net/ipv6/ip6_output.c:135
__ip6_finish_output net/ipv6/ip6_output.c:195 [inline]
ip6_finish_output+0x448/0x4c4 net/ipv6/ip6_output.c:206
NF_HOOK_COND include/linux/netfilter.h:291 [inline]
ip6_output+0x180/0x2dc net/ipv6/ip6_output.c:227
dst_output include/net/dst.h:445 [inline]
NF_HOOK include/linux/netfilter.h:302 [inline]
ndisc_send_skb+0x6d8/0xa18 net/ipv6/ndisc.c:508
ndisc_send_ns+0x7c/0xf0 net/ipv6/ndisc.c:666
addrconf_dad_work+0x2c8/0x504 net/ipv6/addrconf.c:4171
process_one_work+0x2d8/0x504 kernel/workqueue.c:2289
worker_thread+0x340/0x610 kernel/workqueue.c:2436
kthread+0x12c/0x158 kernel/kthread.c:376
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860
Code: 97171ba7 8b384ea8 91020118 b2400316 (f940031a)
---[ end trace 0000000000000000 ]---
Code disassembly (best guess):
0: 97171ba7 bl 0xfffffffffc5c6e9c
4: 8b384ea8 add x8, x21, w24, uxtw #3
8: 91020118 add x24, x8, #0x80
c: b2400316 orr x22, x24, #0x1
* 10: f940031a ldr x26, [x24] <-- trapping instruction

Tested on:

commit: 247f34f7 Linux 6.1-rc2
git tree:
console output:
kernel config:
dashboard link:
compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: arm64

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