Reposted by Himanshu Anand
One missed TLB shootdown a page table I could write to.
One kernelCTF flag.
My latest write up explains the debugging and not just the result.
Known bug (n day) authorized challenge.
blog.himanshuanand.com/2026/09/i-mi...
#Linux #Security
blog.himanshuanand.com
I Missed One TLB Shootdown and Somehow Ended Up Controlling a Page Table
How a missed x86 TLB shootdown became page-table control in Google kernelCTF.