https://iamleandrooooo.github.io/tags/efs/ Recent content in Efs on Leandro's Code Cave Hugo en-us Wed, 29 Jul 2026 00:00:00 +0000 https://iamleandrooooo.github.io/posts/five_ghosts_in_ring_zero/ Wed, 29 Jul 2026 00:00:00 +0000 https://iamleandrooooo.github.io/posts/five_ghosts_in_ring_zero/ There is a version of vulnerability research that reads like archaeology with a kill chain at the end. You find the unchecked multiply. You recover the IOCTL. You draw the structure. You name the primitive. You write the report. Microsoft assigns the case, the case becomes a CVE, and the write-up begins with the satisfying sentence: I found a bug. This is not that write-up. This is about five times I found code that was absolutely wrong and a vulnerability that absolutely was not there.