wifi: wilc1000: validate number of channels

stable inclusion
from stable-v5.10.157
commit 3eb6b89a4e9f9e44c3170d70d8d16c3c8dc8c800
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/I66LQ3?from=project-issue
CVE: CVE-2022-47518

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=3eb6b89a4e9f9e44c3170d70d8d16c3c8dc8c800



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

commit 0cdfa9e6 upstream.

There is no validation of 'e->no_of_channels' which can trigger an
out-of-bounds write in the following 'memset' call. Validate that the
number of channels does not extends beyond the size of the channel list
element.

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/20221123153543.8568-5-philipturnbull@github.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Reviewed-by: Yue Haibing <yuehaibing@huawei.com>
Reviewed-by: Xiu Jianfeng <xiujianfeng@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>