CrowdStrike tvrdi da avioprijevoznik Delta nema os

CrowdStrike releases root cause analysis of the global Microsoft breakdown LINK

In this instance, Falcon expected the update to have 20 input fields, but it had 21 input fields.

This "count mismatch" is what caused the global crash, CrowdStrike said.

"The Content Interpreter expected only 20 values," the RCA report states.

"Therefore, the attempt to access the 21st value produced an out-of-bounds memory read beyond the end of the input data array and resulted in a system crash."

Because Falcon is so tightly integrated into the core of Windows, when it crashed it bought down the entire system causing the BSOD.

Toby Murray, associate professor at the University of Melbourne's School of Computing and Information Systems, said the "dodgy data file update" was "embarrassing".

He said even basic checks by a human developer would have found the problem.

"That is an incredibly basic and fundamental mismatch that was always going to lead to catastrophic problems, sooner or later," he told the ABC.

"The fact that the CrowdStrike developers were able to have this obvious inconsistency between the data file format and the software code means that the most basic forms of quality review and assurance were not being correctly carried out."

He said the update should have been released through a staged deployment.

"When they wrote this report, they must have been feeling very embarrassed," he said.

"First-year programming students are taught about the 'stack', the series of instructions that need to be executed in a CPU (central processing unit)."