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BUG: KASAN: slab-out-of-bounds in memcpy include/linux/string.h:381 [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+0x3be/0xf90 drivers/net/wireless/ath/ath9k/hif_usb.c:666
Read of size 49182 at addr ffff8881d4fe0000 by task kworker/1:5/3246

CPU: 1 PID: 3246 Comm: kworker/1:5 Not tainted 5.7.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xef/0x16e lib/dump_stack.c:118
 print_address_description.constprop.0.cold+0xd3/0x415 mm/kasan/report.c:382
 __kasan_report.cold+0x37/0x7d mm/kasan/report.c:511
 kasan_report+0x33/0x50 mm/kasan/common.c:625
 check_memory_region_inline mm/kasan/generic.c:187 [inline]
 check_memory_region+0x173/0x1d0 mm/kasan/generic.c:193
 memcpy+0x20/0x60 mm/kasan/common.c:106
 memcpy include/linux/string.h:381 [inline]
 ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:553 [inline]
 ath9k_hif_usb_rx_cb+0x3be/0xf90 drivers/net/wireless/ath/ath9k/hif_usb.c:666
 __usb_hcd_giveback_urb+0x1f2/0x470 drivers/usb/core/hcd.c:1648
 usb_hcd_giveback_urb+0x368/0x420 drivers/usb/core/hcd.c:1713
 dummy_timer+0x125e/0x32b4 drivers/usb/gadget/udc/dummy_hcd.c:1967
 call_timer_fn+0x1ac/0x700 kernel/time/timer.c:1405
 expire_timers kernel/time/timer.c:1450 [inline]
 __run_timers kernel/time/timer.c:1774 [inline]
 __run_timers kernel/time/timer.c:1741 [inline]
 run_timer_softirq+0x5f9/0x1500 kernel/time/timer.c:1787
 __do_softirq+0x21e/0x9aa kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x178/0x1a0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:546 [inline]
 smp_apic_timer_interrupt+0x141/0x540 arch/x86/kernel/apic/apic.c:1140
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/irqflags.h:85 [inline]
RIP: 0010:console_unlock+0xa6b/0xca0 kernel/printk/printk.c:2506
Code: 00 89 ee 48 c7 c7 20 d2 14 87 e8 50 cf 03 00 65 ff 0d 51 2f d8 7e e9 b5 f9 ff ff e8 4f 5f 16 00 e8 1a bb 1b 00 ff 74 24 30 9d <e9> 17 fe ff ff e8 3b 5f 16 00 48 8d 7d 08 48 89 f8 48 c1 e8 03 42
RSP: 0018:ffff8881c9f37658 EFLAGS: 00000212 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000007 RBX: 0000000000000200 RCX: 1ffffffff126c9bd
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c9c139fc
RBP: 0000000000000000 R08: 0000000000000001 R09: fffffbfff126c8bd
R10: ffffffff893645e7 R11: fffffbfff126c8bc R12: ffffffff82abb040
R13: ffffffff874ee310 R14: 0000000000000041 R15: dffffc0000000000
 vprintk_emit+0x16d/0x3e0 kernel/printk/printk.c:2021
 dev_vprintk_emit+0x4fc/0x541 drivers/base/core.c:3774
 dev_printk_emit+0xba/0xf1 drivers/base/core.c:3785
 __dev_printk+0x1db/0x203 drivers/base/core.c:3797
 _dev_info+0xd7/0x109 drivers/base/core.c:3843
 usb_disconnect+0x7f/0x900 drivers/usb/core/hub.c:2199
 hub_port_connect drivers/usb/core/hub.c:5059 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5348 [inline]
 port_event drivers/usb/core/hub.c:5494 [inline]
 hub_event+0x1abf/0x43c0 drivers/usb/core/hub.c:5576
 process_one_work+0x965/0x1630 kernel/workqueue.c:2268
 worker_thread+0x96/0xe20 kernel/workqueue.c:2414
 kthread+0x326/0x430 kernel/kthread.c:268
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:351

The buggy address belongs to the page:
page:ffffea000753f800 refcount:1 mapcount:0 mapping:00000000d472be2a index:0x0 head:ffffea000753f800 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:
 ffff8881d4fe8400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8881d4fe8480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8881d4fe8500: 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc
                               ^
 ffff8881d4fe8580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8881d4fe8600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
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