Check the return value of malloc and pread in case they fail.
Signed-off-by: Qiyuan Zhang <zhang.github@outlook.com>
Link: https://github.com/openwrt/openwrt/pull/16070
(cherry picked from commit 3f014543cd4bd099dc089cbb9b9b2d7b0db8a021)
Signed-off-by: Rafal Boni <rafal.boni@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/17889
Signed-off-by: Robert Marko <robimarko@gmail.com>