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BUG: KASAN: slab-out-of-bounds in ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:636 [inline]
BUG: KASAN: slab-out-of-bounds in ath9k_hif_usb_rx_cb+0xdab/0x1020 drivers/net/wireless/ath/ath9k/hif_usb.c:680
Read of size 4 at addr ffff88810ccd40b8 by task swapper/1/0

CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.11.0-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:79 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:120
 print_address_description.constprop.0.cold+0x5b/0x2f8 mm/kasan/report.c:230
 __kasan_report mm/kasan/report.c:396 [inline]
 kasan_report.cold+0x79/0xd5 mm/kasan/report.c:413
 ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:636 [inline]
 ath9k_hif_usb_rx_cb+0xdab/0x1020 drivers/net/wireless/ath/ath9k/hif_usb.c:680
 __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1657
 usb_hcd_giveback_urb+0x367/0x410 drivers/usb/core/hcd.c:1728
 dummy_timer+0x11f4/0x3280 drivers/usb/gadget/udc/dummy_hcd.c:1971
 call_timer_fn+0x1a5/0x630 kernel/time/timer.c:1417
 expire_timers kernel/time/timer.c:1462 [inline]
 __run_timers.part.0+0x67c/0xa10 kernel/time/timer.c:1731
 __run_timers kernel/time/timer.c:1712 [inline]
 run_timer_softirq+0x80/0x120 kernel/time/timer.c:1744
 __do_softirq+0x1b2/0x945 kernel/softirq.c:343
 asm_call_irq_on_stack+0xf/0x20
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
 do_softirq_own_stack+0x80/0xa0 arch/x86/kernel/irq_64.c:77
 invoke_softirq kernel/softirq.c:226 [inline]
 __irq_exit_rcu kernel/softirq.c:420 [inline]
 irq_exit_rcu+0x110/0x1a0 kernel/softirq.c:432
 sysvec_apic_timer_interrupt+0x43/0xa0 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:628
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:29 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:79 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:169 [inline]
RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:111 [inline]
RIP: 0010:acpi_idle_do_entry+0x1c9/0x250 drivers/acpi/processor_idle.c:516
Code: 3d 47 9b fb 84 db 75 ac e8 b4 40 9b fb e8 4f f8 a0 fb e9 0c 00 00 00 e8 a5 40 9b fb 0f 00 2d ce d1 83 00 e8 99 40 9b fb fb f4 <9c> 5b 81 e3 00 02 00 00 fa 31 ff 48 89 de e8 74 48 9b fb 48 85 db
RSP: 0018:ffffc900000dfd18 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff8881002c8000 RSI: ffffffff85a41677 RDI: ffffffff85a41661
RBP: ffff888103a6e064 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff81450ee8 R11: 0000000000000000 R12: 0000000000000001
R13: ffff888103a6e000 R14: ffff888103a6e064 R15: ffff8881068ec804
 acpi_idle_enter+0x355/0x4f0 drivers/acpi/processor_idle.c:647
 cpuidle_enter_state+0x1b1/0xc80 drivers/cpuidle/cpuidle.c:237
 cpuidle_enter+0x4a/0xa0 drivers/cpuidle/cpuidle.c:351
 call_cpuidle kernel/sched/idle.c:158 [inline]
 cpuidle_idle_call kernel/sched/idle.c:239 [inline]
 do_idle+0x3d5/0x580 kernel/sched/idle.c:299
 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:396
 start_secondary+0x273/0x350 arch/x86/kernel/smpboot.c:271
 secondary_startup_64_no_verify+0xb0/0xbb

Allocated by task 0:
(stack is not available)

The buggy address belongs to the object at ffff88810ccd4000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 184 bytes inside of
 2048-byte region [ffff88810ccd4000, ffff88810ccd4800)
The buggy address belongs to the page:
page:0000000085905739 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10ccd0
head:0000000085905739 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x200000000010200(slab|head)
raw: 0200000000010200 dead000000000100 dead000000000122 ffff888100042000
raw: 0000000000000000 0000000080080008 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff88810ccd3f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88810ccd4000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88810ccd4080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                                        ^
 ffff88810ccd4100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88810ccd4180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
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