Fastboot: error: Couldn't parse partition size '0x'?

Hi Team,

When i flash boot.img using fastboot from android platform-tools r30 and r31. I’m getting following error.

“fastboot: error: Couldn’t parse partition size ‘0x’”

To fix that, I have used fastboot flash:raw boot boot.img. It worked. It will create a new boot.img based on information extracted from boot.img

Upon, more research to found root cause. I came across a patch on fastboot which is causing issue.

NOTE: It was working before platform tools r29.

Any pointer in creating boot image which should work with latest fastboot.