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BUG: KASAN: stack-out-of-bounds in ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:626 [inline]
BUG: KASAN: stack-out-of-bounds in ath9k_hif_usb_rx_cb+0xe11/0xf90 drivers/net/wireless/ath/ath9k/hif_usb.c:666
Write of size 8 at addr ffff8881db309a00 by task systemd-udevd/10483

CPU: 1 PID: 10483 Comm: systemd-udevd Not tainted 5.7.0-rc6-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+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
 ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:626 [inline]
 ath9k_hif_usb_rx_cb+0xe11/0xf90 drivers/net/wireless/ath/ath9k/hif_usb.c:666
 __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/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: 0033:0x55df1525c3b3
Code: 36 83 e1 03 48 8d 15 0c 76 03 00 89 c0 48 c1 e1 05 48 0f af 44 0a 08 48 01 f0 48 85 ed 74 07 48 8b 10 48 89 55 00 48 8b 40 08 <5b> 5d 41 5c c3 0f 1f 84 00 00 00 00 00 48 8b 73 08 eb c4 66 2e 0f
RSP: 002b:00007ffcd89cc400 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 000055df171c0480 RCX: 0000000000000001
RDX: 00000000000000ff RSI: 0000000000000000 RDI: 000055df171c0480
RBP: 00007ffcd89cc430 R08: 076782e8f27d854b R09: 0000000000000000
R10: 654852fcf9e8ff4e R11: 09762f4bc4167864 R12: 000055df17193d50
R13: 0000000000000000 R14: 000055df17198580 R15: 000055df17198668

The buggy address belongs to the page:
page:ffffea00076cc240 refcount:1 mapcount:0 mapping:000000002a97b218 index:0x0
flags: 0x200000000001000(reserved)
raw: 0200000000001000 ffffea00076cc248 ffffea00076cc248 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8881db309900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8881db309980: f1 f1 f1 f1 f1 f1 00 00 00 00 00 00 00 00 00 00
>ffff8881db309a00: f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00
                   ^
 ffff8881db309a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8881db309b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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