Commit 9139acd9 authored by Lee Gibson's avatar Lee Gibson Committed by Zheng Zengkai
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staging: rtl8712: Fix possible buffer overflow in r8712_sitesurvey_cmd 



stable inclusion
from stable-5.10.24
commit 74a14d8ae20d2ad25d47af59db299b638872570b
bugzilla: 51348

--------------------------------

commit b93c1e39 upstream.

Function r8712_sitesurvey_cmd calls memcpy without checking the length.
A user could control that length and trigger a buffer overflow.
Fix by checking the length is within the maximum allowed size.

Signed-off-by: default avatarLee Gibson <leegib@gmail.com>
Link: https://lore.kernel.org/r/20210301132648.420296-1-leegib@gmail.com


Cc: stable <stable@vger.kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarChen Jun <chenjun102@huawei.com>
Acked-by: default avatar  Weilong Chen <chenweilong@huawei.com>
Signed-off-by: default avatarZheng Zengkai <zhengzengkai@huawei.com>
parent 2c8b7058
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