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BUG: KASAN: slab-out-of-bounds in ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:580 [inline]
BUG: KASAN: slab-out-of-bounds in ath9k_hif_usb_rx_cb+0xc67/0xf80 drivers/net/wireless/ath/ath9k/hif_usb.c:671
Read of size 4 at addr ffff8881c59e409c by task systemd-udevd/3799

CPU: 0 PID: 3799 Comm: systemd-udevd Not tainted 5.8.0-rc3-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+0x1a/0x210 mm/kasan/report.c:383
 __kasan_report mm/kasan/report.c:513 [inline]
 kasan_report.cold+0x37/0x7c mm/kasan/report.c:530
 ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:580 [inline]
 ath9k_hif_usb_rx_cb+0xc67/0xf80 drivers/net/wireless/ath/ath9k/hif_usb.c:671
 __usb_hcd_giveback_urb+0x32d/0x560 drivers/usb/core/hcd.c:1650
 usb_hcd_giveback_urb+0x367/0x410 drivers/usb/core/hcd.c:1716
 dummy_timer+0x11f2/0x3240 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.part.0+0x54c/0x9e0 kernel/time/timer.c:1773
 __run_timers kernel/time/timer.c:1745 [inline]
 run_timer_softirq+0x80/0x120 kernel/time/timer.c:1786
 __do_softirq+0x222/0x95b 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+0xed/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+0x150/0x1f0 kernel/softirq.c:429
 sysvec_apic_timer_interrupt+0x49/0xc0 arch/x86/kernel/apic/apic.c:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:596
RIP: 0010:vmacache_find+0x1a8/0x310 mm/vmacache.c:76
Code: 2e 01 00 00 4f 8b ac ef f8 03 00 00 4d 85 ed 0f 84 97 00 00 00 e8 48 a1 e4 ff 49 8d 7d 40 48 89 fa 48 c1 ea 03 42 80 3c 32 00 <0f> 85 19 01 00 00 48 8b 04 24 49 39 45 40 0f 85 d6 00 00 00 e8 1f
RSP: 0000:ffff8881d8c0fe38 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff815b015d
RDX: 1ffff1103985a2e8 RSI: ffffffff815b0098 RDI: ffff8881cc2d1740
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff895ad68f
R10: 0000000000000004 R11: 0000000000000000 R12: 00007ff4148ad470
R13: ffff8881cc2d1700 R14: dffffc0000000000 R15: ffff8881d0cb6400
 find_vma+0x1e/0x180 mm/mmap.c:2240
 do_user_addr_fault+0x2aa/0xc50 arch/x86/mm/fault.c:1256
 handle_page_fault arch/x86/mm/fault.c:1365 [inline]
 exc_page_fault+0xa1/0x160 arch/x86/mm/fault.c:1418
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:565
RIP: 0033:0x7ff4148ad470
Code: Bad RIP value.
RSP: 002b:00007fff7ba3ced8 EFLAGS: 00010202
RAX: 000055b7f9d849a0 RBX: 000055b7f9dd61c8 RCX: 0000000000000000
RDX: 0000000000000020 RSI: 0000000000000000 RDI: 000055b7f9dd61c8
RBP: 0000000000000002 R08: 000055b7f9deb170 R09: 000000000000000f
R10: 00007ff414805220 R11: 000055b7f9d849a0 R12: 0000000000000020
R13: 000055b7f9de5c40 R14: 000055b7f9dd0010 R15: 000055b7f9dd0028

Allocated by task 0:
(stack is not available)

Freed by task 0:
(stack is not available)

The buggy address belongs to the object at ffff8881c59e4000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 156 bytes inside of
 2048-byte region [ffff8881c59e4000, ffff8881c59e4800)
The buggy address belongs to the page:
page:ffffea0007167800 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 head:ffffea0007167800 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x200000000010200(slab|head)
raw: 0200000000010200 dead000000000100 dead000000000122 ffff8881da00c000
raw: 0000000000000000 0000000080080008 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8881c59e3f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8881c59e4000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8881c59e4080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                            ^
 ffff8881c59e4100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8881c59e4180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
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