Stable inclusion request (GCC11-related fixes)

[Andrey Zhizhikin <andrey.z@xxxxxxxxx>]

Hello Greg,

Can you please pick up following patches to respective releases from [master]:
82e5d8cc768b ("security: commoncap: fix -Wstringop-overread warning")
# 4.14.y, 4.19.y, 5.4.y, 5.10.y
e7c6e405e171 ("Fix misc new gcc warnings") # 4.19.y, 5.4.y, 5.10.y

They do solve build warnings with GCC11.

Thanks a lot!

-- 
Regards,
Andrey.