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BUG: KASAN: invalid-access in __packet_get_status+0xb0/0x12c net/packet/af_packet.c:439
Read at addr f4ff000006b50000 by task rm/3484
Pointer tag: [f4], memory tag: [f0]

CPU: 0 PID: 3484 Comm: rm Not tainted 6.6.0-syzkaller-gffc253263a13 #0
Hardware name: linux,dummy-virt (DT)
Call trace:
 dump_backtrace+0x94/0xec arch/arm64/kernel/stacktrace.c:233
 show_stack+0x18/0x24 arch/arm64/kernel/stacktrace.c:240
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x48/0x60 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:364 [inline]
 print_report+0x108/0x618 mm/kasan/report.c:475
 kasan_report+0x88/0xac mm/kasan/report.c:588
 report_tag_fault arch/arm64/mm/fault.c:334 [inline]
 do_tag_recovery arch/arm64/mm/fault.c:346 [inline]
 __do_kernel_fault+0x17c/0x1e8 arch/arm64/mm/fault.c:393
 do_bad_area arch/arm64/mm/fault.c:493 [inline]
 do_tag_check_fault+0x78/0x8c arch/arm64/mm/fault.c:770
 do_mem_abort+0x44/0x94 arch/arm64/mm/fault.c:846
 el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:398
 el1h_64_sync_handler+0xd8/0xe4 arch/arm64/kernel/entry-common.c:458
 el1h_64_sync+0x64/0x68 arch/arm64/kernel/entry.S:590
 __packet_get_status+0xb0/0x12c 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+0x29c/0xc04 net/packet/af_packet.c:2359
 dev_queue_xmit_nit+0x27c/0x2c0 net/core/dev.c:2341
 xmit_one net/core/dev.c:3569 [inline]
 dev_hard_start_xmit+0x70/0x10c net/core/dev.c:3589
 __dev_queue_xmit+0x1c0/0xe48 net/core/dev.c:4369
 dev_queue_xmit include/linux/netdevice.h:3082 [inline]
 neigh_hh_output include/net/neighbour.h:526 [inline]
 neigh_output include/net/neighbour.h:540 [inline]
 ip6_finish_output2+0x260/0x7b8 net/ipv6/ip6_output.c:135
 __ip6_finish_output net/ipv6/ip6_output.c:196 [inline]
 ip6_finish_output+0x23c/0x354 net/ipv6/ip6_output.c:207
 NF_HOOK_COND include/linux/netfilter.h:293 [inline]
 ip6_output+0x74/0x1cc net/ipv6/ip6_output.c:228
 dst_output include/net/dst.h:458 [inline]
 NF_HOOK.constprop.0+0x50/0xe0 include/linux/netfilter.h:304
 ndisc_send_skb+0x280/0x474 net/ipv6/ndisc.c:509
 ndisc_send_rs+0x5c/0x1b0 net/ipv6/ndisc.c:719
 addrconf_rs_timer+0x158/0x2b0 net/ipv6/addrconf.c:3973
 call_timer_fn.constprop.0+0x24/0x80 kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1751 [inline]
 __run_timers+0x224/0x270 kernel/time/timer.c:2022
 run_timer_softirq+0x20/0x40 kernel/time/timer.c:2035
 __do_softirq+0x10c/0x284 kernel/softirq.c:553
 ____do_softirq+0x10/0x1c arch/arm64/kernel/irq.c:80
 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:886
 do_softirq_own_stack+0x1c/0x28 arch/arm64/kernel/irq.c:85
 invoke_softirq kernel/softirq.c:434 [inline]
 __irq_exit_rcu kernel/softirq.c:632 [inline]
 irq_exit_rcu+0xd8/0xf4 kernel/softirq.c:644
 __el1_irq arch/arm64/kernel/entry-common.c:503 [inline]
 el1_interrupt+0x38/0x64 arch/arm64/kernel/entry-common.c:517
 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:522
 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:591
 __up_write kernel/locking/rwsem.c:1375 [inline]
 up_write+0x30/0x80 kernel/locking/rwsem.c:1626
 vma_start_write include/linux/mm.h:726 [inline]
 do_vmi_align_munmap+0x15c/0x40c mm/mmap.c:2501
 do_vmi_munmap+0xac/0x100 mm/mmap.c:2643
 mmap_region+0xd4/0x968 mm/mmap.c:2693
 do_mmap+0x3e0/0x4c4 mm/mmap.c:1374
 vm_mmap_pgoff+0xf0/0x134 mm/util.c:546
 ksys_mmap_pgoff+0x4c/0x204 mm/mmap.c:1420
 __do_sys_mmap arch/arm64/kernel/sys.c:28 [inline]
 __se_sys_mmap arch/arm64/kernel/sys.c:21 [inline]
 __arm64_sys_mmap+0x30/0x44 arch/arm64/kernel/sys.c:21
 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
 invoke_syscall+0x48/0x114 arch/arm64/kernel/syscall.c:51
 el0_svc_common.constprop.0+0x40/0xe0 arch/arm64/kernel/syscall.c:136
 do_el0_svc+0x1c/0x28 arch/arm64/kernel/syscall.c:155
 el0_svc+0x40/0x114 arch/arm64/kernel/entry-common.c:678
 el0t_64_sync_handler+0x100/0x12c arch/arm64/kernel/entry-common.c:696
 el0t_64_sync+0x19c/0x1a0 arch/arm64/kernel/entry.S:595

The buggy address belongs to the physical page:
page:000000005249250c refcount:9 mapcount:1 mapping:0000000000000000 index:0x0 pfn:0x46b50
head:000000005249250c order:3 entire_mapcount:0 nr_pages_mapped:8 pincount:0
flags: 0x1ffc2c006000040(head|arch_2|arch_3|node=0|zone=0|lastcpupid=0x7ff|kasantag=0xb)
page_type: 0x0()
raw: 01ffc2c006000040 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 0000000900000000 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff000006b4fe00: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
 ffff000006b4ff00: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
>ffff000006b50000: f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0
                   ^
 ffff000006b50100: f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0
 ffff000006b50200: f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0
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