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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+0xad3/0xf90 drivers/net/wireless/ath/ath9k/hif_usb.c:666
Read of size 4 at addr ffff8881c60440dc by task syz-executor.1/4034

CPU: 1 PID: 4034 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:580 [inline]
 ath9k_hif_usb_rx_cb+0xad3/0xf90 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: 0010:pte_lockptr include/linux/mm.h:2122 [inline]
RIP: 0010:wp_page_copy+0x5e6/0x1fd0 mm/memory.c:2694
Code: ba 00 00 00 00 00 fc ff df 48 89 4c 24 40 48 c1 e9 03 49 21 c6 49 c1 ee 06 80 3c 11 00 0f 85 70 17 00 00 4c 03 35 82 e7 91 05 <48> ba 00 00 00 00 00 fc ff df 49 8d 7e 28 48 89 f9 48 c1 e9 03 80
RSP: 0018:ffff8881aceaf508 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 000ffffffffff000 RBX: ffff8881aceaf798 RCX: 1ffffffff0ddd407
RDX: dffffc0000000000 RSI: ffffffff815cb87f RDI: 0000000000000007
RBP: ffffea00069e0000 R08: ffff8881c5d76300 R09: fffffbfff0fd1189
R10: ffffffff87e88c47 R11: fffffbfff0fd1188 R12: ffff8881c29d0e00
R13: 0000000000000000 R14: ffffea000736b100 R15: 00000001cdac4067
 do_wp_page+0x2cd/0x1af0 mm/memory.c:2982
 handle_pte_fault mm/memory.c:4231 [inline]
 __handle_mm_fault+0x16e5/0x2da0 mm/memory.c:4345
 handle_mm_fault+0x2ec/0x8d0 mm/memory.c:4382
 do_user_addr_fault arch/x86/mm/fault.c:1464 [inline]
 do_page_fault+0x51e/0x127d arch/x86/mm/fault.c:1535
 page_fault+0x34/0x40 arch/x86/entry/entry_64.S:1203
RIP: 0010:copy_user_enhanced_fast_string+0xe/0x30 arch/x86/lib/copy_user_64.S:205
Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 1f 00 c3 0f 1f 80 00 00 00 00 0f 1f 00 83 fa 40 0f 82 70 ff ff ff 89 d1 <f3> a4 31 c0 0f 1f 00 c3 66 2e 0f 1f 84 00 00 00 00 00 89 d1 f3 a4
RSP: 0018:ffff8881aceaf9f0 EFLAGS: 00010206
RAX: 0000000000000001 RBX: 0000000000001000 RCX: 0000000000000200
RDX: 0000000000001000 RSI: ffff8881a9cf1e00 RDI: 0000000020c37000
RBP: 0000000020c36200 R08: ffffed103539e400 R09: 0000000000000000
R10: ffff8881a9cf1fff R11: ffffed103539e3ff R12: ffff8881a9cf1000
R13: 0000000020c37200 R14: 00007ffffffff000 R15: 0000000000000000
 copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline]
 raw_copy_to_user arch/x86/include/asm/uaccess_64.h:74 [inline]
 copyout+0x107/0x140 lib/iov_iter.c:142
 copy_page_to_iter_iovec lib/iov_iter.c:211 [inline]
 copy_page_to_iter+0x447/0xed0 lib/iov_iter.c:920
 generic_file_buffered_read mm/filemap.c:2129 [inline]
 generic_file_read_iter+0xfef/0x2a20 mm/filemap.c:2309
 ext4_file_read_iter fs/ext4/file.c:131 [inline]
 ext4_file_read_iter+0x181/0x430 fs/ext4/file.c:114
 call_read_iter include/linux/fs.h:1901 [inline]
 new_sync_read+0x41e/0x6d0 fs/read_write.c:415
 __vfs_read+0xc9/0x100 fs/read_write.c:428
 vfs_read+0x1f0/0x420 fs/read_write.c:462
 ksys_read+0x12d/0x250 fs/read_write.c:588
 do_syscall_64+0xb6/0x5a0 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x45ca69
Code: 0d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fecf55ccc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00000000004faf40 RCX: 000000000045ca69
RDX: 00000000ffffffad RSI: 0000000020003200 RDI: 0000000000000007
RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000883 R14: 00000000004cb5ea R15: 00007fecf55cd6d4

Allocated by task 0:
(stack is not available)

Freed by task 0:
(stack is not available)

The buggy address belongs to the object at ffff8881c6043300
 which belongs to the cache names_cache of size 4096
The buggy address is located 3548 bytes inside of
 4096-byte region [ffff8881c6043300, ffff8881c6044300)
The buggy address belongs to the page:
page:ffffea0007181000 refcount:1 mapcount:0 mapping:00000000eb4ea162 index:0x0 head:ffffea0007181000 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x200000000010200(slab|head)
raw: 0200000000010200 dead000000000100 dead000000000122 ffff8881da11e000
raw: 0000000000000000 0000000080070007 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8881c6043f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8881c6044000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8881c6044080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                                                    ^
 ffff8881c6044100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8881c6044180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
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