> There was a Linux kernel bug where someone put a test for root in as "if (uid = 0)" instead of "if (uid == 0)", so that when a rarely used system call was mad

> There was a Linux kernel bug where someone put a test for root in as "if (uid = 0)" instead of "if (uid == 0)", so that when a rarely used system call was made, the process became root.[3] No there was not! Someone in 2003 submitted a patch. To the wrong repo. The patch was looked at anyway and rejected for this reason. It was never merged. No machine ever had this bug.