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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 ffff8881db209a08 by task syz-executor.1/368

CPU: 0 PID: 368 Comm: syz-executor.1 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+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:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x3b/0x40 kernel/locking/spinlock.c:191
Code: e8 fa 71 90 fb 48 89 ef e8 92 6e 91 fb f6 c7 02 75 11 53 9d e8 66 14 af fb 65 ff 0d 87 86 6b 7a 5b 5d c3 e8 57 12 af fb 53 9d <eb> ed 0f 1f 00 55 48 89 fd 65 ff 05 6d 86 6b 7a 45 31 c9 41 b8 01
RSP: 0018:ffff8881ad117c10 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000007 RBX: 0000000000000246 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000006 RDI: ffff8881d1c0a13c
RBP: ffff8881d8d1c7a0 R08: ffff8881d1c098c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881ad117cf8
R13: 0000000000000000 R14: 00007ffdceba0a20 R15: 0000000000000004
 do_wait+0x19d/0x9c0 kernel/exit.c:1423
 kernel_wait4+0x14c/0x260 kernel/exit.c:1612
 __do_sys_wait4+0x147/0x160 kernel/exit.c:1624
 do_syscall_64+0xb6/0x5a0 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x4168ca
Code: 0f 83 6a 18 00 00 c3 66 0f 1f 84 00 00 00 00 00 8b 05 ce 30 89 00 85 c0 75 36 45 31 d2 48 63 d2 48 63 ff b8 3d 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 06 c3 0f 1f 44 00 00 48 c7 c2 d4 ff ff ff f7
RSP: 002b:00007ffdceba09e8 EFLAGS: 00000246 ORIG_RAX: 000000000000003d
RAX: ffffffffffffffda RBX: 000000000004753c RCX: 00000000004168ca
RDX: 0000000040000001 RSI: 00007ffdceba0a20 RDI: ffffffffffffffff
RBP: 00000000000000a9 R08: 0000000000000001 R09: 0000000002907940
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdceba0a20 R14: 000000000004753c R15: 00007ffdceba0a30

The buggy address belongs to the page:
page:ffffea00076c8240 refcount:1 mapcount:0 mapping:00000000f90a541f index:0x0
flags: 0x200000000001000(reserved)
raw: 0200000000001000 ffffea00076c8248 ffffea00076c8248 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8881db209900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8881db209980: 00 f1 f1 f1 f1 f1 f1 00 00 00 00 00 00 00 00 00
>ffff8881db209a00: 00 f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00
                      ^
 ffff8881db209a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8881db209b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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