==================================================================
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 systemd-udevd/151

CPU: 0 PID: 151 Comm: systemd-udevd Not tainted 5.7.0-rc5-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+0xd3/0x314 mm/kasan/report.c:382
 __kasan_report.cold+0x37/0x92 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:1966
 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:deref_stack_reg+0x40/0xe0 arch/x86/kernel/unwind_orc.c:350
Code: 55 48 89 f5 53 48 83 ec 60 48 89 e3 48 c7 04 24 b3 8a b5 41 48 c7 44 24 08 c8 73 dd 86 48 c1 eb 03 48 c7 44 24 10 30 66 10 81 <4a> 8d 04 2b c7 00 f1 f1 f1 f1 c7 40 04 00 f3 f3 f3 65 48 8b 04 25
RSP: 0018:ffff8881d08df500 EFLAGS: 00000a06 ORIG_RAX: ffffffffffffff13
RAX: ffff8881d08dfa60 RBX: 1ffff1103a11bea0 RCX: 0000000000000000
RDX: 0000000000000008 RSI: ffff8881d08dfa58 RDI: ffff8881d08df660
RBP: ffff8881d08dfa58 R08: ffffffff8836d3e8 R09: ffffffff8836d3ec
R10: 000000000001b319 R11: 000000000004c01a R12: ffff8881d08df6a8
R13: dffffc0000000000 R14: 0000000000000001 R15: 1ffff1103a11beb9
 unwind_next_frame+0x7d5/0x1de0 arch/x86/kernel/unwind_orc.c:527
 arch_stack_walk+0x81/0xf0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:123
 save_stack+0x1b/0x40 mm/kasan/common.c:49
 set_track mm/kasan/common.c:57 [inline]
 __kasan_kmalloc mm/kasan/common.c:495 [inline]
 __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:468
 slab_post_alloc_hook mm/slab.h:586 [inline]
 slab_alloc_node mm/slub.c:2797 [inline]
 slab_alloc mm/slub.c:2805 [inline]
 kmem_cache_alloc+0xd8/0x300 mm/slub.c:2810
 anon_vma_alloc mm/rmap.c:89 [inline]
 anon_vma_fork+0xed/0x490 mm/rmap.c:354
 dup_mmap kernel/fork.c:563 [inline]
 dup_mm+0x88a/0x1140 kernel/fork.c:1363
 copy_mm kernel/fork.c:1419 [inline]
 copy_process+0x2752/0x64e0 kernel/fork.c:2085
 _do_fork+0x12d/0xfd0 kernel/fork.c:2430
 __do_sys_clone+0xec/0x140 kernel/fork.c:2585
 do_syscall_64+0xb6/0x5a0 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x7fb4e3cdb38b
Code: db 45 85 f6 0f 85 95 01 00 00 64 4c 8b 04 25 10 00 00 00 31 d2 4d 8d 90 d0 02 00 00 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 de 00 00 00 85 c0 41 89 c5 0f 85 e5 00 00
RSP: 002b:00007ffcf1c6a7f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007ffcf1c6a7f0 RCX: 00007fb4e3cdb38b
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007ffcf1c6a840 R08: 00007fb4e4e8b8c0 R09: 0000000000000210
R10: 00007fb4e4e8bb90 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000020 R14: 0000000000000000 R15: 0000000000000000

The buggy address belongs to the page:
page:ffffea00076c8240 refcount:1 mapcount:0 mapping:0000000011e40274 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
==================================================================