wifi: wilc1000: validate length of IEEE80211_P2P_ATTR_CHANNEL_LIST attribute

stable inclusion
from stable-v5.10.157
commit 5a068535c0073c8402aa0755e8ef259fb98a33c5
category: bugfix
bugzilla: 188173 https://gitee.com/src-openeuler/kernel/issues/I66M3J
CVE: CVE-2022-47521

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=5a068535c0073c8402aa0755e8ef259fb98a33c5



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

commit f9b62f98 upstream.

Validate that the IEEE80211_P2P_ATTR_CHANNEL_LIST attribute contains
enough space for a 'struct wilc_attr_oper_ch'. If the attribute is too
small then it can trigger an out-of-bounds write later in the function.

'struct wilc_attr_oper_ch' is variable sized so also check 'attr_len'
does not extend beyond the end of 'buf'.

Signed-off-by: Phil Turnbull <philipturnbull@github.com>
Tested-by: Ajay Kathat <ajay.kathat@microchip.com>
Acked-by: Ajay Kathat <ajay.kathat@microchip.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221123153543.8568-4-philipturnbull@github.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Liu Jian <liujian56@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>
Reviewed-by: Yue Haibing <yuehaibing@huawei.com>