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BUG: KASAN: slab-out-of-bounds in memcpy include/linux/string.h:406 [inline]
BUG: KASAN: slab-out-of-bounds in ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:553 [inline]
BUG: KASAN: slab-out-of-bounds in ath9k_hif_usb_rx_cb+0x3b1/0x1050 drivers/net/wireless/ath/ath9k/hif_usb.c:671
Read of size 48762 at addr ffff8881c5478000 by task swapper/1/0

CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.8.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xf6/0x16e lib/dump_stack.c:118
 print_address_description.constprop.0.cold+0xd3/0x415 mm/kasan/report.c:383
 __kasan_report mm/kasan/report.c:513 [inline]
 kasan_report.cold+0x37/0x7c mm/kasan/report.c:530
 check_memory_region_inline mm/kasan/generic.c:186 [inline]
 check_memory_region+0x173/0x1d0 mm/kasan/generic.c:192
 memcpy+0x20/0x60 mm/kasan/common.c:105
 memcpy include/linux/string.h:406 [inline]
 ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:553 [inline]
 ath9k_hif_usb_rx_cb+0x3b1/0x1050 drivers/net/wireless/ath/ath9k/hif_usb.c:671
 __usb_hcd_giveback_urb+0x29a/0x550 drivers/usb/core/hcd.c:1650
 usb_hcd_giveback_urb+0x368/0x420 drivers/usb/core/hcd.c:1716
 dummy_timer+0x125e/0x32b4 drivers/usb/gadget/udc/dummy_hcd.c:1967
 call_timer_fn+0x1ac/0x6e0 kernel/time/timer.c:1404
 expire_timers kernel/time/timer.c:1449 [inline]
 __run_timers kernel/time/timer.c:1773 [inline]
 __run_timers kernel/time/timer.c:1740 [inline]
 run_timer_softirq+0x5e5/0x14c0 kernel/time/timer.c:1786
 __do_softirq+0x21e/0x996 kernel/softirq.c:292
 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:711
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline]
 do_softirq_own_stack+0x109/0x140 arch/x86/kernel/irq_64.c:77
 invoke_softirq kernel/softirq.c:387 [inline]
 __irq_exit_rcu kernel/softirq.c:417 [inline]
 irq_exit_rcu+0x16f/0x1a0 kernel/softirq.c:429
 sysvec_apic_timer_interrupt+0xd3/0x1b0 arch/x86/kernel/apic/apic.c:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:596
RIP: 0010:_raw_spin_unlock_irq+0x27/0x30 kernel/locking/spinlock.c:200
Code: 44 00 00 55 48 8b 74 24 08 48 89 fd 48 8d 7f 18 e8 3e 12 86 fb 48 89 ef e8 56 05 87 fb e8 41 90 a4 fb fb 65 ff 0d e9 ad 61 7a <5d> c3 0f 1f 80 00 00 00 00 55 48 89 fd 48 83 c7 18 53 48 89 f3 48
RSP: 0018:ffff8881da22fc80 EFLAGS: 00000282
RAX: 0000000000000000 RBX: ffff8881da213200 RCX: 1ffffffff1014efa
RDX: 1ffff1103b442747 RSI: 0000000000000000 RDI: ffff8881da213a38
RBP: ffff8881db332ac0 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881db332ac0
R13: ffff8881cd9a8000 R14: 0000000000000000 R15: 0000000000000001
 finish_lock_switch kernel/sched/core.c:3169 [inline]
 finish_task_switch+0x11d/0x5d0 kernel/sched/core.c:3269
 context_switch kernel/sched/core.c:3433 [inline]
 __schedule+0x8a9/0x1db0 kernel/sched/core.c:4155
 schedule_idle+0x53/0x90 kernel/sched/core.c:4258
 do_idle+0x2d5/0x500 kernel/sched/idle.c:297
 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:365
 start_secondary+0x294/0x370 arch/x86/kernel/smpboot.c:268
 secondary_startup_64+0xb6/0xc0 arch/x86/kernel/head_64.S:243

The buggy address belongs to the page:
page:ffffea0007151e00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 head:ffffea0007151e00 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x200000000010000(head)
raw: 0200000000010000 dead000000000100 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8881c5480380: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8881c5480400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8881c5480480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
                                                                ^
 ffff8881c5480500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc 00
 ffff8881c5480580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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