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BUG: KASAN: invalid-access in __packet_get_status+0xb8/0x138 net/packet/af_packet.c:439
Read at addr f7f000000b448000 by task kworker/u8:4/163
Pointer tag: [f7], memory tag: [f0]

CPU: 0 PID: 163 Comm: kworker/u8:4 Not tainted 6.10.0-rc1-syzkaller-g2bfcfd584ff5 #0
Hardware name: linux,dummy-virt (DT)
Workqueue: ipv6_addrconf addrconf_dad_work
Call trace:
 dump_backtrace+0x94/0xec arch/arm64/kernel/stacktrace.c:317
 show_stack+0x18/0x24 arch/arm64/kernel/stacktrace.c:324
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x78/0x90 lib/dump_stack.c:114
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0x108/0x618 mm/kasan/report.c:488
 kasan_report+0x88/0xac mm/kasan/report.c:601
 report_tag_fault arch/arm64/mm/fault.c:331 [inline]
 do_tag_recovery arch/arm64/mm/fault.c:343 [inline]
 __do_kernel_fault+0x1a0/0x1dc arch/arm64/mm/fault.c:385
 do_bad_area arch/arm64/mm/fault.c:485 [inline]
 do_tag_check_fault+0x78/0x8c arch/arm64/mm/fault.c:750
 do_mem_abort+0x44/0x94 arch/arm64/mm/fault.c:826
 el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:432
 el1h_64_sync_handler+0xd8/0xe4 arch/arm64/kernel/entry-common.c:492
 el1h_64_sync+0x64/0x68 arch/arm64/kernel/entry.S:593
 __packet_get_status+0xb8/0x138 net/packet/af_packet.c:439
 packet_lookup_frame net/packet/af_packet.c:528 [inline]
 packet_current_rx_frame net/packet/af_packet.c:1121 [inline]
 tpacket_rcv+0x2b0/0xbd0 net/packet/af_packet.c:2356
 dev_queue_xmit_nit+0x284/0x2c8 net/core/dev.c:2343
 xmit_one net/core/dev.c:3574 [inline]
 dev_hard_start_xmit+0x7c/0x118 net/core/dev.c:3594
 __dev_queue_xmit+0x1c0/0xea8 net/core/dev.c:4393
 dev_queue_xmit include/linux/netdevice.h:3095 [inline]
 neigh_resolve_output net/core/neighbour.c:1565 [inline]
 neigh_resolve_output+0xf8/0x1e0 net/core/neighbour.c:1545
 neigh_output include/net/neighbour.h:542 [inline]
 ip6_finish_output2+0x2c4/0x914 net/ipv6/ip6_output.c:137
 __ip6_finish_output net/ipv6/ip6_output.c:211 [inline]
 ip6_finish_output+0x228/0x344 net/ipv6/ip6_output.c:222
 NF_HOOK_COND include/linux/netfilter.h:303 [inline]
 ip6_output+0x78/0x1c8 net/ipv6/ip6_output.c:243
 dst_output include/net/dst.h:450 [inline]
 NF_HOOK.constprop.0+0x50/0xe0 include/linux/netfilter.h:314
 ndisc_send_skb+0x1f8/0x3d8 net/ipv6/ndisc.c:509
 ndisc_send_ns+0x68/0xb4 net/ipv6/ndisc.c:667
 addrconf_dad_work+0x3d0/0x590 net/ipv6/addrconf.c:4281
 process_one_work+0x164/0x2a8 kernel/workqueue.c:3231
 process_scheduled_works kernel/workqueue.c:3312 [inline]
 worker_thread+0x27c/0x38c kernel/workqueue.c:3393
 kthread+0x114/0x118 kernel/kthread.c:389
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860

The buggy address belongs to the physical page:
page: refcount:9 mapcount:1 mapping:0000000000000000 index:0x0 pfn:0x4b448
head: order:3 mapcount:8 entire_mapcount:0 nr_pages_mapped:8 pincount:0
flags: 0x1ffc20003000040(head|arch_2|arch_3|node=0|zone=0|lastcpupid=0x7ff|kasantag=0x8)
raw: 01ffc20003000040 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 0000000900000000 0000000000000000
head: 01ffc20003000040 0000000000000000 dead000000000122 0000000000000000
head: 0000000000000000 0000000000000000 0000000900000000 0000000000000000
head: 01ffc20003000003 ffffc1ffc02d1201 ffffffff00000007 0000000000000008
head: 0000000000000008 0000000000000000 0000000000000000 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 fff000000b447e00: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
 fff000000b447f00: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
>fff000000b448000: f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0
                   ^
 fff000000b448100: f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0
 fff000000b448200: f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0
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