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BUG: KASAN: invalid-access in __packet_get_status+0xb0/0x12c net/packet/af_packet.c:439
Read at addr fcff00003b870000 by task syz-executor.0/3139
Pointer tag: [fc], memory tag: [f0]

CPU: 1 PID: 3139 Comm: syz-executor.0 Not tainted 6.7.0-syzkaller-11091-g296455ade1fd #0
Hardware name: linux,dummy-virt (DT)
Call trace:
 dump_backtrace+0x94/0xec arch/arm64/kernel/stacktrace.c:291
 show_stack+0x18/0x24 arch/arm64/kernel/stacktrace.c:298
 __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: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: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:772
 do_mem_abort+0x44/0x94 arch/arm64/mm/fault.c:848
 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]
 __tpacket_has_room net/packet/af_packet.c:1259 [inline]
 __packet_rcv_has_room+0xf8/0x188 net/packet/af_packet.c:1300
 tpacket_rcv+0x158/0xbcc net/packet/af_packet.c:2286
 dev_queue_xmit_nit+0x27c/0x2c0 net/core/dev.c:2312
 xmit_one net/core/dev.c:3543 [inline]
 dev_hard_start_xmit+0x74/0x110 net/core/dev.c:3563
 __dev_queue_xmit+0x1c0/0xe5c net/core/dev.c:4351
 dev_queue_xmit include/linux/netdevice.h:3171 [inline]
 hsr_xmit net/hsr/hsr_forward.c:380 [inline]
 hsr_forward_do net/hsr/hsr_forward.c:471 [inline]
 hsr_forward_skb+0x398/0x724 net/hsr/hsr_forward.c:619
 send_hsr_supervision_frame+0x120/0x1f0 net/hsr/hsr_device.c:343
 hsr_announce+0x50/0xac net/hsr/hsr_device.c:399
 call_timer_fn.constprop.0+0x24/0x80 kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1751 [inline]
 __run_timers+0x22c/0x268 kernel/time/timer.c:2038
 run_timer_softirq+0x20/0x40 kernel/time/timer.c:2051
 __do_softirq+0x10c/0x26c kernel/softirq.c:553
 ____do_softirq+0x10/0x1c arch/arm64/kernel/irq.c:81
 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:886
 do_softirq_own_stack+0x1c/0x28 arch/arm64/kernel/irq.c:86
 invoke_softirq kernel/softirq.c:434 [inline]
 __irq_exit_rcu kernel/softirq.c:632 [inline]
 irq_exit_rcu+0xc0/0xdc 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
 __preempt_count_dec_and_test arch/arm64/include/asm/preempt.h:74 [inline]
 __update_cpu_freelist_fast+0x68/0xbc mm/slub.c:3304
 __slab_alloc_node mm/slub.c:3696 [inline]
 slab_alloc_node mm/slub.c:3850 [inline]
 kmem_cache_alloc+0xbc/0x2c4 mm/slub.c:3867
 vm_area_dup+0x2c/0x19c kernel/fork.c:480
 dup_mmap kernel/fork.c:695 [inline]
 dup_mm kernel/fork.c:1685 [inline]
 copy_mm+0x2f0/0x7ac kernel/fork.c:1734
 copy_process+0xbc4/0x13e8 kernel/fork.c:2496
 kernel_clone+0x64/0x360 kernel/fork.c:2901
 __do_sys_clone+0x70/0xa8 kernel/fork.c:3044
 __se_sys_clone kernel/fork.c:3012 [inline]
 __arm64_sys_clone+0x20/0x2c kernel/fork.c:3012
 __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+0x34/0xd8 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:000000008843d0ab refcount:9 mapcount:1 mapping:0000000000000000 index:0x0 pfn:0x7b870
head:000000008843d0ab order:3 entire_mapcount:0 nr_pages_mapped:8 pincount:0
flags: 0x1ffc0c006000040(head|arch_2|arch_3|node=0|zone=0|lastcpupid=0x7ff|kasantag=0x3)
page_type: 0x0()
raw: 01ffc0c006000040 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 0000000900000000 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff00003b86fe00: f6 f6 f6 f6 f6 f6 f6 f6 f6 f6 f6 f6 f6 f6 f6 f6
 ffff00003b86ff00: f6 f6 f6 f6 f6 f6 f6 f6 f6 f6 f6 f6 f6 f6 f6 f6
>ffff00003b870000: f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0
                   ^
 ffff00003b870100: f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0
 ffff00003b870200: f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0 f0
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